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Thread: Ubuntu 12.04 - Blank screen when switching to virtual terminals

  1. #1
    Join Date
    May 2012
    Beans
    23

    Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Hi all,

    When using ctrl+alt+fn to go to the virtual terminals, I find a blank screen. The terminals work, as I can log in and do stuff blindly, like creating files. Only the graphical mode (ctrl+alt+f7) works.

    During the splash session, the vts are available and readable, only when I choose a desktop environment they turn to blank. I can reproduce this with my preferred manager, cinnamon, but also with gnome and unity 2d. I also tried an old kernel (3.0.0-12-generic) with the same results.

    I've been twiking around the grub, and found out that the nomodeset flag makes the vterminal appears, but all the video acceleration is gone, so I would prefer a fix instead of a workaround.

    Any help will be deeply appreciated, i'm going insane =(.

    Info:

    Laptop: Toshiba R830
    OS: Ubuntu 12.04 x86_64
    Kernel: 3.2.0-24-generic #39-Ubuntu
    Graphic card: Intel Sandybridge
    xorg-server 2:1.11.4-0ubuntu10.1

    Logs at the time of the switch:

    .xsession-errors

    Code:
    (gnome-settings-daemon:1938): color-plugin-WARNING **: Done switch to new account, reload devices
    (gnome-settings-daemon:1938): color-plugin-WARNING **: unable to get EDID for xrandr-LVDS1: unable to get EDID for output
    Xorg.0.log

    Code:
    [  2513.699] (II) AIGLX: Suspending AIGLX clients for VT switch
    [  2515.025] (II) Open ACPI successful (/var/run/acpid.socket)
    [  2515.025] (II) AIGLX: Resuming AIGLX clients after VT switch
    [  2515.501] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
    kern.log

    Code:
    May 23 22:29:06 pulpo kernel: [ 3236.061227] [drm:intel_crtc_cursor_set], 
    May 23 22:29:06 pulpo kernel: [ 3236.061237] [drm:intel_crtc_cursor_set], cursor off
    May 23 22:29:06 pulpo kernel: [ 3236.172963] [drm:drm_crtc_helper_set_config], 
    May 23 22:29:06 pulpo kernel: [ 3236.172971] [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:27] #connectors=1 (x y) (0 0)
    May 23 22:29:06 pulpo kernel: [ 3236.172997] [drm:drm_crtc_helper_set_config], modes are different, full mode set
    May 23 22:29:06 pulpo kernel: [ 3236.173003] [drm:drm_mode_debug_printmodeline], Modeline 39:"" 0 84750 1360 1432 1568 1776 768 771 781 798 0x0 0x6
    May 23 22:29:06 pulpo kernel: [ 3236.173012] [drm:drm_mode_debug_printmodeline], Modeline 26:"1366x768" 60 76220 1366 1400 1512 1624 768 769 771 780 0x8 0xa
    May 23 22:29:06 pulpo kernel: [ 3236.173025] [drm:drm_crtc_helper_set_config], [CONNECTOR:5:LVDS-1] to [CRTC:3]
    May 23 22:29:06 pulpo kernel: [ 3236.173031] [drm:drm_crtc_helper_set_config], attempting to set mode from userspace
    May 23 22:29:06 pulpo kernel: [ 3236.173036] [drm:drm_mode_debug_printmodeline], Modeline 26:"1366x768" 60 76220 1366 1400 1512 1624 768 769 771 780 0x8 0xa
    May 23 22:29:06 pulpo kernel: [ 3236.173053] [drm:drm_crtc_helper_set_mode], [CRTC:3]
    May 23 22:29:06 pulpo kernel: [ 3236.228522] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:06 pulpo kernel: [ 3236.228533] [drm:ironlake_disable_fbc], disabled FBC
    May 23 22:29:06 pulpo kernel: [ 3236.252965] [drm:sandybridge_update_wm], FIFO watermarks For pipe A - plane 6, cursor: 6
    May 23 22:29:06 pulpo kernel: [ 3236.252977] [drm:ironlake_check_srwm], watermark 1: display plane 10, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.252985] [drm:ironlake_check_srwm], watermark 2: display plane 12, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.252991] [drm:ironlake_check_srwm], watermark 3: display plane 55, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.252998] [drm:intel_update_fbc], 
    May 23 22:29:06 pulpo kernel: [ 3236.253002] [drm:intel_update_fbc], fbc set to per-chip default
    May 23 22:29:06 pulpo kernel: [ 3236.253007] [drm:intel_update_fbc], framebuffer not tiled or fenced, disabling compression
    May 23 22:29:06 pulpo kernel: [ 3236.253175] [drm:ironlake_get_refclk], using SSC reference clock of 120 MHz
    May 23 22:29:06 pulpo kernel: [ 3236.253210] [drm:intel_choose_pipe_bpp_dither], clamping display bpc (was -1) to LVDS (6)
    May 23 22:29:06 pulpo kernel: [ 3236.253216] [drm:intel_choose_pipe_bpp_dither], setting pipe bpc to 8 (max display bpc 6)
    May 23 22:29:06 pulpo kernel: [ 3236.253223] [drm:ironlake_crtc_mode_set], Mode for pipe 0:
    May 23 22:29:06 pulpo kernel: [ 3236.253228] [drm:drm_mode_debug_printmodeline], Modeline 26:"1366x768" 60 76220 1366 1400 1512 1624 768 769 771 780 0x8 0xa
    May 23 22:29:06 pulpo kernel: [ 3236.253392] [drm] Changing LVDS panel from (-hsync, +vsync) to (-hsync, -vsync)
    May 23 22:29:06 pulpo kernel: [ 3236.308491] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:06 pulpo kernel: [ 3236.308514] [drm:ironlake_update_plane], Writing base 00064000 00000000 0 0 5504
    May 23 22:29:06 pulpo kernel: [ 3236.308523] [drm:intel_update_fbc], 
    May 23 22:29:06 pulpo kernel: [ 3236.308527] [drm:intel_update_fbc], fbc set to per-chip default
    May 23 22:29:06 pulpo kernel: [ 3236.308532] [drm:intel_update_fbc], framebuffer not tiled or fenced, disabling compression
    May 23 22:29:06 pulpo kernel: [ 3236.364418] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:06 pulpo kernel: [ 3236.364432] [drm:sandybridge_update_wm], FIFO watermarks For pipe A - plane 6, cursor: 6
    May 23 22:29:06 pulpo kernel: [ 3236.364440] [drm:ironlake_check_srwm], watermark 1: display plane 10, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.364448] [drm:ironlake_check_srwm], watermark 2: display plane 12, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.364454] [drm:ironlake_check_srwm], watermark 3: display plane 55, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.364464] [drm:drm_crtc_helper_set_mode], [ENCODER:6:LVDS-6] set [MODE:26:1366x768]
    May 23 22:29:06 pulpo kernel: [ 3236.364473] [drm:sandybridge_update_wm], FIFO watermarks For pipe A - plane 6, cursor: 6
    May 23 22:29:06 pulpo kernel: [ 3236.364479] [drm:ironlake_check_srwm], watermark 1: display plane 10, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.364486] [drm:ironlake_check_srwm], watermark 2: display plane 12, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.364492] [drm:ironlake_check_srwm], watermark 3: display plane 55, fbc lines 3, cursor 6
    May 23 22:29:06 pulpo kernel: [ 3236.420368] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:06 pulpo kernel: [ 3236.476264] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:06 pulpo kernel: [ 3236.477080] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x100
    May 23 22:29:06 pulpo kernel: [ 3236.477086] [drm:gen6_fdi_link_train], FDI train 1 done.
    May 23 22:29:06 pulpo kernel: [ 3236.477739] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x600
    May 23 22:29:06 pulpo kernel: [ 3236.477744] [drm:gen6_fdi_link_train], FDI train 2 done.
    May 23 22:29:06 pulpo kernel: [ 3236.477748] [drm:gen6_fdi_link_train], FDI train done.
    May 23 22:29:06 pulpo kernel: [ 3236.478962] [drm:intel_update_fbc], 
    May 23 22:29:06 pulpo kernel: [ 3236.478966] [drm:intel_update_fbc], fbc set to per-chip default
    May 23 22:29:06 pulpo kernel: [ 3236.478970] [drm:intel_update_fbc], framebuffer not tiled or fenced, disabling compression
    May 23 22:29:06 pulpo kernel: [ 3236.478989] [drm:drm_crtc_helper_set_config], Setting connector DPMS state to on
    May 23 22:29:06 pulpo kernel: [ 3236.478996] [drm:drm_crtc_helper_set_config],     [CONNECTOR:5:LVDS-1] set DPMS on
    May 23 22:29:06 pulpo kernel: [ 3236.479031] [drm:drm_crtc_helper_set_config], 
    May 23 22:29:06 pulpo kernel: [ 3236.479035] [drm:drm_crtc_helper_set_config], [CRTC:4] [NOFB]
    May 23 22:29:06 pulpo kernel: [ 3236.479062] [drm:drm_crtc_helper_set_config], 
    May 23 22:29:06 pulpo kernel: [ 3236.479065] [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:27] #connectors=1 (x y) (0 0)
    May 23 22:29:06 pulpo kernel: [ 3236.479089] [drm:drm_crtc_helper_set_config], [CONNECTOR:5:LVDS-1] to [CRTC:3]
    May 23 22:29:06 pulpo kernel: [ 3236.479118] [drm:drm_crtc_helper_set_config], 
    May 23 22:29:06 pulpo kernel: [ 3236.479121] [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:27] #connectors=1 (x y) (0 0)
    May 23 22:29:06 pulpo kernel: [ 3236.479134] [drm:drm_crtc_helper_set_config], [CONNECTOR:5:LVDS-1] to [CRTC:3]
    May 23 22:29:08 pulpo kernel: [ 3237.819256] [drm:drm_mode_setcrtc], [CRTC:3]
    May 23 22:29:08 pulpo kernel: [ 3237.819276] [drm:drm_mode_setcrtc], [CONNECTOR:5:LVDS-1]
    May 23 22:29:08 pulpo kernel: [ 3237.819287] [drm:drm_crtc_helper_set_config], 
    May 23 22:29:08 pulpo kernel: [ 3237.819293] [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:34] #connectors=1 (x y) (0 0)
    May 23 22:29:08 pulpo kernel: [ 3237.819326] [drm:drm_crtc_helper_set_config], modes are different, full mode set
    May 23 22:29:08 pulpo kernel: [ 3237.819335] [drm:drm_mode_debug_printmodeline], Modeline 26:"1366x768" 60 76220 1366 1400 1512 1624 768 769 771 780 0x8 0xa
    May 23 22:29:08 pulpo kernel: [ 3237.819351] [drm:drm_mode_debug_printmodeline], Modeline 40:"" 0 84750 1360 1432 1568 1776 768 771 781 798 0x0 0x6
    May 23 22:29:08 pulpo kernel: [ 3237.819381] [drm:drm_crtc_helper_set_config], [CONNECTOR:5:LVDS-1] to [CRTC:3]
    May 23 22:29:08 pulpo kernel: [ 3237.819384] [drm:drm_crtc_helper_set_config], attempting to set mode from userspace
    May 23 22:29:08 pulpo kernel: [ 3237.819387] [drm:drm_mode_debug_printmodeline], Modeline 40:"" 0 84750 1360 1432 1568 1776 768 771 781 798 0x0 0x6
    May 23 22:29:08 pulpo kernel: [ 3237.819395] [drm:drm_crtc_helper_set_mode], [CRTC:3]
    May 23 22:29:08 pulpo kernel: [ 3237.874728] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:08 pulpo kernel: [ 3237.899068] [drm:sandybridge_update_wm], FIFO watermarks For pipe A - plane 6, cursor: 6
    May 23 22:29:08 pulpo kernel: [ 3237.899081] [drm:ironlake_check_srwm], watermark 1: display plane 10, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3237.899091] [drm:ironlake_check_srwm], watermark 2: display plane 13, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3237.899099] [drm:ironlake_check_srwm], watermark 3: display plane 61, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3237.899106] [drm:intel_update_fbc], 
    May 23 22:29:08 pulpo kernel: [ 3237.899112] [drm:intel_update_fbc], fbc set to per-chip default
    May 23 22:29:08 pulpo kernel: [ 3237.899120] [drm:intel_enable_fbc], scheduling delayed FBC enable
    May 23 22:29:08 pulpo kernel: [ 3237.899289] [drm:ironlake_get_refclk], using SSC reference clock of 120 MHz
    May 23 22:29:08 pulpo kernel: [ 3237.899326] [drm:intel_choose_pipe_bpp_dither], clamping display bpc (was -1) to LVDS (6)
    May 23 22:29:08 pulpo kernel: [ 3237.899333] [drm:intel_choose_pipe_bpp_dither], setting pipe bpc to 8 (max display bpc 6)
    May 23 22:29:08 pulpo kernel: [ 3237.899342] [drm:ironlake_crtc_mode_set], Mode for pipe 0:
    May 23 22:29:08 pulpo kernel: [ 3237.899348] [drm:drm_mode_debug_printmodeline], Modeline 40:"" 0 84750 1360 1432 1568 1776 768 771 781 798 0x0 0x6
    May 23 22:29:08 pulpo kernel: [ 3237.899512] [drm] Changing LVDS panel from (-hsync, -vsync) to (-hsync, +vsync)
    r_modes], [CONNECTOR:20:HDMI-A-3] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.185490] [drm:drm_mode_getconnector], [CONNECTOR:20:?]
    May 23 22:29:08 pulpo kernel: [ 3238.185496] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:20:HDMI-A-3]
    May 23 22:29:08 pulpo kernel: [ 3238.187786] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpd
    May 23 22:29:08 pulpo kernel: [ 3238.187795] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:20:HDMI-A-3] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.187811] [drm:drm_mode_getconnector], [CONNECTOR:21:?]
    May 23 22:29:08 pulpo kernel: [ 3238.187817] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:21:DP-2]
    May 23 22:29:08 pulpo kernel: [ 3238.188330] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.194864] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.202899] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.210333] [drm:intel_dp_detect], DPCD: 0000000000000000
    May 23 22:29:08 pulpo kernel: [ 3238.210352] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:21:DP-2] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.210378] [drm:drm_mode_getconnector], [CONNECTOR:21:?]
    May 23 22:29:08 pulpo kernel: [ 3238.210387] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:21:DP-2]
    May 23 22:29:08 pulpo kernel: [ 3238.210900] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.218827] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.226866] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.234311] [drm:intel_dp_detect], DPCD: 0000000000000000
    May 23 22:29:08 pulpo kernel: [ 3238.234329] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:21:DP-2] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.234374] [drm:drm_mode_getconnector], [CONNECTOR:23:?]
    May 23 22:29:08 pulpo kernel: [ 3238.234383] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:23:DP-3]
    May 23 22:29:08 pulpo kernel: [ 3238.234897] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.242803] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.250860] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.258279] [drm:intel_dp_detect], DPCD: 0000000000000000
    May 23 22:29:08 pulpo kernel: [ 3238.258296] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:23:DP-3] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.258323] [drm:drm_mode_getconnector], [CONNECTOR:23:?]
    May 23 22:29:08 pulpo kernel: [ 3238.258332] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:23:DP-3]
    May 23 22:29:08 pulpo kernel: [ 3238.258849] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.266785] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.274834] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.282248] [drm:intel_dp_detect], DPCD: 0000000000000000
    May 23 22:29:08 pulpo kernel: [ 3238.282266] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:23:DP-3] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.286445] [drm:intel_crtc_cursor_set], 
    May 23 22:29:08 pulpo kernel: [ 3237.950789] [drm:ironlake_enable_fbc], enabled fbc on plane 0
    May 23 22:29:08 pulpo kernel: [ 3237.954638] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:08 pulpo kernel: [ 3237.954917] [drm:ironlake_update_plane], Writing base 01F84000 00000000 0 0 5632
    May 23 22:29:08 pulpo kernel: [ 3237.954929] [drm:intel_update_fbc], 
    May 23 22:29:08 pulpo kernel: [ 3237.954934] [drm:intel_update_fbc], fbc set to per-chip default
    May 23 22:29:08 pulpo kernel: [ 3238.010614] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:08 pulpo kernel: [ 3238.010632] [drm:sandybridge_update_wm], FIFO watermarks For pipe A - plane 6, cursor: 6
    May 23 22:29:08 pulpo kernel: [ 3238.010642] [drm:ironlake_check_srwm], watermark 1: display plane 10, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3238.010652] [drm:ironlake_check_srwm], watermark 2: display plane 13, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3238.010661] [drm:ironlake_check_srwm], watermark 3: display plane 61, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3238.010674] [drm:drm_crtc_helper_set_mode], [ENCODER:6:LVDS-6] set [MODE:40:]
    May 23 22:29:08 pulpo kernel: [ 3238.010685] [drm:sandybridge_update_wm], FIFO watermarks For pipe A - plane 6, cursor: 6
    May 23 22:29:08 pulpo kernel: [ 3238.010693] [drm:ironlake_check_srwm], watermark 1: display plane 10, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3238.010803] [drm:ironlake_check_srwm], watermark 2: display plane 13, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3238.010813] [drm:ironlake_check_srwm], watermark 3: display plane 61, fbc lines 3, cursor 6
    May 23 22:29:08 pulpo kernel: [ 3238.066551] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:08 pulpo kernel: [ 3238.122428] [drm:intel_wait_for_vblank], vblank wait timed out
    May 23 22:29:08 pulpo kernel: [ 3238.123245] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x100
    May 23 22:29:08 pulpo kernel: [ 3238.123253] [drm:gen6_fdi_link_train], FDI train 1 done.
    May 23 22:29:08 pulpo kernel: [ 3238.123907] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x600
    May 23 22:29:08 pulpo kernel: [ 3238.123913] [drm:gen6_fdi_link_train], FDI train 2 done.
    May 23 22:29:08 pulpo kernel: [ 3238.123918] [drm:gen6_fdi_link_train], FDI train done.
    May 23 22:29:08 pulpo kernel: [ 3238.125134] [drm:intel_update_fbc], 
    May 23 22:29:08 pulpo kernel: [ 3238.125139] [drm:intel_update_fbc], fbc set to per-chip default
    May 23 22:29:08 pulpo kernel: [ 3238.125158] [drm:drm_crtc_helper_set_config], Setting connector DPMS state to on
    May 23 22:29:08 pulpo kernel: [ 3238.125166] [drm:drm_crtc_helper_set_config],     [CONNECTOR:5:LVDS-1] set DPMS on
    May 23 22:29:08 pulpo kernel: [ 3238.125368] [drm:drm_mode_getconnector], [CONNECTOR:5:?]
    May 23 22:29:08 pulpo kernel: [ 3238.125375] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:5:LVDS-1]
    May 23 22:29:08 pulpo kernel: [ 3238.125397] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:5:LVDS-1] probed modes :
    May 23 22:29:08 pulpo kernel: [ 3238.125405] [drm:drm_mode_debug_printmodeline], Modeline 25:"1366x768" 60 76220 1366 1400 1512 1624 768 769 771 780 0x8 0xa
    May 23 22:29:08 pulpo kernel: [ 3238.125419] [drm:drm_mode_getconnector], [CONNECTOR:5:?]
    May 23 22:29:08 pulpo kernel: [ 3238.125733] [drm:drm_mode_getconnector], [CONNECTOR:9:?]
    May 23 22:29:08 pulpo kernel: [ 3238.125740] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1]
    May 23 22:29:08 pulpo kernel: [ 3238.125749] [drm:intel_ironlake_crt_detect_hotplug], ironlake hotplug adpa=0xf40000, result 0
    May 23 22:29:08 pulpo kernel: [ 3238.125756] [drm:intel_crt_detect], CRT not detected via hotplug
    May 23 22:29:08 pulpo kernel: [ 3238.125762] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.125771] [drm:drm_mode_getconnector], [CONNECTOR:9:?]
    May 23 22:29:08 pulpo kernel: [ 3238.125776] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1]
    May 23 22:29:08 pulpo kernel: [ 3238.125783] [drm:intel_ironlake_crt_detect_hotplug], ironlake hotplug adpa=0xf40000, result 0
    May 23 22:29:08 pulpo kernel: [ 3238.125790] [drm:intel_crt_detect], CRT not detected via hotplug
    May 23 22:29:08 pulpo kernel: [ 3238.125796] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:VGA-1] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.125807] [drm:drm_mode_getconnector], [CONNECTOR:12:?]
    May 23 22:29:08 pulpo kernel: [ 3238.125813] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1]
    May 23 22:29:08 pulpo kernel: [ 3238.128123] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpb
    May 23 22:29:08 pulpo kernel: [ 3238.128133] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.128144] [drm:drm_mode_getconnector], [CONNECTOR:12:?]
    May 23 22:29:08 pulpo kernel: [ 3238.128150] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1]
    May 23 22:29:08 pulpo kernel: [ 3238.130434] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpb
    May 23 22:29:08 pulpo kernel: [ 3238.130442] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-1] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.130473] [drm:drm_mode_getconnector], [CONNECTOR:15:?]
    May 23 22:29:08 pulpo kernel: [ 3238.130480] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:15:DP-1]
    May 23 22:29:08 pulpo kernel: [ 3238.130994] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.138923] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.146904] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.154441] [drm:intel_dp_detect], DPCD: 0000000000000000
    May 23 22:29:08 pulpo kernel: [ 3238.154458] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:15:DP-1] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.154484] [drm:drm_mode_getconnector], [CONNECTOR:15:?]
    May 23 22:29:08 pulpo kernel: [ 3238.154492] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:15:DP-1]
    May 23 22:29:08 pulpo kernel: [ 3238.155006] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.162900] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.170893] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5143003e
    May 23 22:29:08 pulpo kernel: [ 3238.178433] [drm:intel_dp_detect], DPCD: 0000000000000000
    May 23 22:29:08 pulpo kernel: [ 3238.178450] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:15:DP-1] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.178495] [drm:drm_mode_getconnector], [CONNECTOR:18:?]
    May 23 22:29:08 pulpo kernel: [ 3238.178504] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2]
    May 23 22:29:08 pulpo kernel: [ 3238.180803] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
    May 23 22:29:08 pulpo kernel: [ 3238.180811] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.180820] [drm:drm_mode_getconnector], [CONNECTOR:18:?]
    May 23 22:29:08 pulpo kernel: [ 3238.180826] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2]
    May 23 22:29:08 pulpo kernel: [ 3238.183158] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpc
    May 23 22:29:08 pulpo kernel: [ 3238.183167] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:18:HDMI-A-2] disconnected
    May 23 22:29:08 pulpo kernel: [ 3238.183184] [drm:drm_mode_getconnector], [CONNECTOR:20:?]
    May 23 22:29:08 pulpo kernel: [ 3238.183191] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:20:HDMI-A-3]
    May 23 22:29:08 pulpo kernel: [ 3238.185475] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter i915 gmbus dpd

  2. #2
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Bump. Anyone? I'm going insane without my vts and considering an alternate OS. Yes, it's that bad...

  3. #3
    Join Date
    Apr 2012
    Beans
    6,623

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    can you connect an external monitor and see if the problem is the same? most often I think the issue is simply that the screen goes into an unsupported mode (wrong geometry or resolution - sometimes just the displayed text falling off the edge) - splash screen would likely use a VGA mode

    there are also issues with LCD backlights not turning on but I think that's mostly on resume from suspend rather than vt switching

  4. #4
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Seems like the backlight is causing issues here, specially since I can blindly use the terminals.

    I like the idea of trying the external monitor, and that will be my next step, thx steeldriver.

  5. #5
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Terminals! Plugging an external monitor did the trick. Of course, when I unplug it, I go back to my vtless state, any ideas how to fix it?

    Here is a copy of my new Xorg.0.log:

    Code:
    [ 64461.939] (II) AIGLX: Suspending AIGLX clients for VT switch
    [ 64462.913] (II) Open ACPI successful (/var/run/acpid.socket)
    [ 64462.913] (II) AIGLX: Resuming AIGLX clients after VT switch
    [ 64462.913] (EE) intel(0): Couldn't create pixmap for fbcon
    [ 64463.092] (II) intel(0): EDID vendor "IFS", prod id 48640
    [ 64463.092] (II) intel(0): Using hsync ranges from config file
    [ 64463.092] (II) intel(0): Using vrefresh ranges from config file
    [ 64463.092] (II) intel(0): Printing DDC gathered Modelines:
    [ 64463.092] (II) intel(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
    [ 64463.092] (II) intel(0): Modeline "800x600"x0.0   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz)
    [ 64463.092] (II) intel(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz)
    [ 64463.092] (II) intel(0): Modeline "640x480"x0.0   31.50  640 664 704 832  480 489 492 520 -hsync -vsync (37.9 kHz)
    [ 64463.092] (II) intel(0): Modeline "640x480"x0.0   30.24  640 704 768 864  480 483 486 525 -hsync -vsync (35.0 kHz)
    [ 64463.092] (II) intel(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
    [ 64463.092] (II) intel(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz)
    [ 64463.092] (II) intel(0): Modeline "1024x768"x0.0   75.00  1024 1048 1184 1328  768 771 777 806 -hsync -vsync (56.5 kHz)
    [ 64463.092] (II) intel(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
    [ 64463.092] (II) intel(0): Modeline "832x624"x0.0   57.28  832 864 928 1152  624 625 628 667 -hsync -vsync (49.7 kHz)
    [ 64463.092] (II) intel(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz)
    [ 64463.092] (II) intel(0): Modeline "800x600"x0.0   50.00  800 856 976 1040  600 637 643 666 +hsync +vsync (48.1 kHz)
    [ 64463.249] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found

  6. #6
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    After tons of google searches, I'm still unable to see my terminals without an external monitor, which kinda defeats the purpose of having a laptop...

    So, my efforts:

    To find the resolutions supported by my hw:

    Code:
    law@pulpo:~$ sudo hwinfo --framebuffer                               
    [sudo] password for law: 
    > hal.1: read hal dataprocess 2507: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file ../../dbus/dbus-errors.c line 282.
    This is normally a bug in some application using the D-Bus library.
    libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
    02: None 00.0: 11001 VESA Framebuffer                           
      [Created at bios.464]
      Unique ID: rdCR.ku_DuSHewh1
      Hardware Class: framebuffer
      Model: "Intel(R)Sandybridge Mobile Graphics Controller"
      Vendor: "Intel Corporation"
      Device: "Intel(R)Sandybridge Mobile Graphics Controller"
      SubVendor: "Intel(R)Sandybridge Mobile Graphics Chipset Accelerated VGA BIOS"
      SubDevice: 
      Revision: "Hardware Version 0.0"
      Memory Size: 63 MB + 960 kB
      Memory Range: 0xb0000000-0xb3feffff (rw)
      Mode 0x0360: 1280x720 (+1280), 8 bits
      Mode 0x0361: 1280x720 (+2560), 16 bits
      Mode 0x0362: 1280x720 (+5120), 24 bits
      Mode 0x0305: 1024x768 (+1024), 8 bits
      Mode 0x0317: 1024x768 (+2048), 16 bits
      Mode 0x0318: 1024x768 (+4096), 24 bits
      Mode 0x0312: 640x480 (+2560), 24 bits
      Mode 0x0314: 800x600 (+1600), 16 bits
      Mode 0x0315: 800x600 (+3200), 24 bits
      Mode 0x0301: 640x480 (+640), 8 bits
      Mode 0x0303: 800x600 (+832), 8 bits
      Mode 0x0311: 640x480 (+1280), 16 bits
      Config Status: cfg=new, avail=yes, need=no, active=unknown
    So i did my configurations using the highlighted modes.

    First, I changed my boot line to add vga=0x****. No terminals.

    Following this thread, http://ubuntuforums.org/showthread.php?t=122936&page=2, I tried vga=791 instead. Still no luck.

    Then I tried this one, http://www.linuxquestions.org/questi...lution-860061/, with my selected resolution. No changes.

    I found a new thread, http://members.home.nl/g8m/ehcs/62.html, maybe this one is the charmed one? Well, it isn't.

    I updated my /etc/default/grub to read:
    GRUB_GFXMODE=1024x768
    GRUB_GFXPAYLOAD_LINUX=1024x768

    Nope. Maybe if i comment out the second line? I wish...

    So, any other suggestions? Am I missing something?

  7. #7
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Bump! Help, please -puppy eyes-

  8. #8
    Join Date
    Jun 2005
    Beans
    4

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Hi. I don't think is a solution but maybe it can help.
    I had a very similar problem and end up discovering the issue is related to grup. What I did:

    $ sudo vim /etc/default/grub

    Uncommented line:

    GRUB_TERMINAL=console

    It will activate the simpler console mode for grub. So:

    $ sudo update-grub

    Reboot and go.

    I don't care about vga terminals so it fits well for me. Because it doesn't bring a high resolution terminal I guess my answer is not exactly what you want. But I expect someone else finds it useful.

  9. #9
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Quote Originally Posted by marceloguedes View Post
    Hi. I don't think is a solution but maybe it can help.
    I had a very similar problem and end up discovering the issue is related to grup. What I did:

    $ sudo vim /etc/default/grub

    Uncommented line:

    GRUB_TERMINAL=console

    It will activate the simpler console mode for grub. So:

    $ sudo update-grub

    Reboot and go.

    I don't care about vga terminals so it fits well for me. Because it doesn't bring a high resolution terminal I guess my answer is not exactly what you want. But I expect someone else finds it useful.
    Unfortunately that didn't work =(.

    I have an update, the vts issue is fixed with the new kernel (v3.4-precise), but it breaks virtualbox (i have to use exchange and ie for my job, so i can't do without it)... the drivers can't not be stopped/started, causing the computer to not even be able to be rebooted/shut down. Also, the usb devices stop being recognized and OpenGL crashes the computer... so, back to square 1.

    Any way to get a list of changes made to the new kernel as to detect the one causing the vts issue?

    Update: 3.3.7 is a bad mix of both faulty kernels, no vbox and no vts, so I'm guessing 3.4 fixed the issue. Changelog:

    2.2. Graphics


    • Initial drm/kms driver for the DisplayLink devices (commit)
    • exynos: added virtual display driver. This driver would be used for wireless display (commit)
    • PRIME interface to dma-buf (commit)
    • Resurrect Intel740 driver: i740fb (commit)
    • vmwgfx: Add page flip support (commit)
    • fbdev: da8xx: add support for SP10Q010 display (commit)
    • OMAPFB

      • Remove OMAP2/3 support from old omapfb driver (commit)
      • Remove old blizzard driver (commit)
    Any pointers?
    Last edited by LawM; June 4th, 2012 at 01:58 AM.

  10. #10
    Join Date
    May 2012
    Beans
    23

    Re: Ubuntu 12.04 - Blank screen when switching to virtual terminals

    Bump, help?

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