how to identify my monitor in ubuntu ?

[James1293]

I'm having the same problem. If I don't use the nvidia driver, everything works well (except graphic-intensive applications). If I use the nvidia driver, I'm stuck with two resolution choices: 640x480 and 320x240. However, intensive graphics are smoother.

I tried editing xorg.conf, but I haven't had any success with that. However, I may have been editing the wrong stuff, so please don't exclude editing xorg.conf from your suggestions.

When I type

$ gksudo displayconfig-gtk

Nothing happens. I tried

$ gksudo displayconfig-gtk --debug

Output (it requests password in the normal GUI popup about 14 lines in) :

No ask_pass set, using default!
xauth: /tmp/libgksu-iOwCOi/.Xauthority
STARTUP_ID: gksudo/displayconfig-gtk/1874-0-james-desktop-ubuntu-10gb-hdd_TIME1521041
cmd[0]: /usr/bin/sudo
cmd[1]: -H
cmd[2]: -S
cmd[3]: -p
cmd[4]: GNOME_SUDO_PASS
cmd[5]: -u
cmd[6]: root
cmd[7]: --
cmd[8]: displayconfig-gtk
buffer: -GNOME_SUDO_PASS-
brute force GNOME_SUDO_PASS ended...
Yeah, we're in...
xauth: /tmp/libgksu-iOwCOi/.Xauthority
xauth_env: /var/run/gdm/auth-for-james-kaMW43/database
dir: /tmp/libgksu-iOwCOi

If I type the command after already making that terminal root:

buffer: --
buffer: --
buffer: --
buffer: --
buffer: --
brute force GNOME_SUDO_PASS ended...
No password prompt found; we'll assume we don't need a password.
xauth: /tmp/libgksu-Bmmmmd/.Xauthority
xauth_env: /var/run/gdm/auth-for-james-kaMW43/database
dir: /tmp/libgksu-Bmmmmd

By the way, the "buffer: --" actually repeats so many times that it goes off the terminal screen.

Any suggestions?

Thanks!


EDIT:
Contents of xorg.conf:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildd@palmer)  Fri Apr  9 10:35:18 UTC 2010


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"

    # HorizSync source: builtin, VertRefresh source: builtin
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "CRT-0"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce FX 5200"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "640x480_60 @1280x1024 +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

[James1293]

Does anyone have any ideas? Even a probably-won't-work idea is better than nothing =D

[ljsilver]

Try this:

sudo apt-get install read-edid


Lets it probe the monitor for usable modes.

Worked for me

[James1293]

I installed read-edid; i ran sudo get-edid, and the output gave a bunch of stuff ending with
"Your EDID is probably invalid."

Any other ideas? =D