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Thread: Screen resolution after update

  1. #1
    Join Date
    Sep 2007
    Beans
    21

    Screen resolution after update

    Hi everyone,

    I just ran an update to Ubuntu 18.04, and now I can only access a 1920x1080 resolution for my external monitor.
    It was 2540x1440 before the update. I guess some Nvidia stuffs was the source of the problem, but I am definitely not expert in these things.

    Cheers,
    François

    The update log for today:

    Code:
    Start-Date: 2020-11-19  09:07:21
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: firefox:amd64 (82.0.3+build1-0ubuntu0.18.04.1, 83.0+build2-0ubuntu0.18.04.2)
    End-Date: 2020-11-19  09:07:26
    
    Start-Date: 2020-11-19  09:07:28
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: firefox-locale-en:amd64 (82.0.3+build1-0ubuntu0.18.04.1, 83.0+build2-0ubuntu0.18.04.2)
    End-Date: 2020-11-19  09:07:29
    
    Start-Date: 2020-11-19  09:07:31
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: firefox-locale-fr:amd64 (82.0.3+build1-0ubuntu0.18.04.1, 83.0+build2-0ubuntu0.18.04.2)
    End-Date: 2020-11-19  09:07:31
    
    Start-Date: 2020-11-19  09:07:33
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: krb5-locales:amd64 (1.16-2ubuntu0.1, 1.16-2ubuntu0.2)
    End-Date: 2020-11-19  09:07:34
    
    Start-Date: 2020-11-19  09:07:36
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: libk5crypto3:amd64 (1.16-2ubuntu0.1, 1.16-2ubuntu0.2)
    End-Date: 2020-11-19  09:07:37
    
    Start-Date: 2020-11-19  09:07:39
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: libldap-common:amd64 (2.4.45+dfsg-1ubuntu1.7, 2.4.45+dfsg-1ubuntu1.8)
    End-Date: 2020-11-19  09:07:40
    
    Start-Date: 2020-11-19  09:07:42
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: libpq5:amd64 (10.14-0ubuntu0.18.04.1, 10.15-0ubuntu0.18.04.1)
    End-Date: 2020-11-19  09:07:42
    
    Start-Date: 2020-11-19  09:07:44
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: libvncclient1:amd64 (0.9.11+dfsg-1ubuntu1.3, 0.9.11+dfsg-1ubuntu1.4)
    End-Date: 2020-11-19  09:07:45
    
    Start-Date: 2020-11-19  09:07:47
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: vino:amd64 (3.22.0-3ubuntu1.1, 3.22.0-3ubuntu1.2)
    End-Date: 2020-11-19  09:07:48
    
    Start-Date: 2020-11-19  09:07:51
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: libldap-2.4-2:amd64 (2.4.45+dfsg-1ubuntu1.7, 2.4.45+dfsg-1ubuntu1.8)
    End-Date: 2020-11-19  09:07:51
    
    Start-Date: 2020-11-19  09:07:53
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: chromium-browser:amd64 (86.0.4240.75-0ubuntu0.18.04.1, 86.0.4240.198-0ubuntu0.18.04.1), chromium-codecs-ffmpeg-extra:amd64 (86.0.4240.75-0ubuntu0.18.04.1, 86.0.4240.198-0ubuntu0.18.04.1), chromium-browser-l10n:amd64 (86.0.4240.75-0ubuntu0.18.04.1, 86.0.4240.198-0ubuntu0.18.04.1)
    End-Date: 2020-11-19  09:07:59
    
    Start-Date: 2020-11-19  09:08:01
    Commandline: /usr/bin/unattended-upgrade
    Upgrade: libkrb5-3:amd64 (1.16-2ubuntu0.1, 1.16-2ubuntu0.2), libgssapi-krb5-2:amd64 (1.16-2ubuntu0.1, 1.16-2ubuntu0.2), libkrb5support0:amd64 (1.16-2ubuntu0.1, 1.16-2ubuntu0.2)
    End-Date: 2020-11-19  09:08:02
    
    Start-Date: 2020-11-19  09:16:09
    Commandline: aptdaemon role='role-commit-packages' sender=':1.166'
    Install: libnvidia-compute-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-compute-455:i386 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-encode-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-encode-455:i386 (455.38-0ubuntu0.18.04.1, automatic), nvidia-kernel-common-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), xserver-xorg-video-nvidia-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-gl-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-gl-455:i386 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-fbc1-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-fbc1-455:i386 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-decode-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-decode-455:i386 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-cfg1-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), nvidia-utils-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), nvidia-dkms-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), linux-headers-4.15.0-1102-oem:amd64 (4.15.0-1102.113, automatic), linux-oem-headers-4.15.0-1102:amd64 (4.15.0-1102.113, automatic), linux-image-4.15.0-1102-oem:amd64 (4.15.0-1102.113, automatic), nvidia-compute-utils-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), linux-modules-4.15.0-1102-oem:amd64 (4.15.0-1102.113, automatic), libnvidia-ifr1-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-ifr1-455:i386 (455.38-0ubuntu0.18.04.1, automatic), nvidia-driver-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-common-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), libnvidia-extra-455:amd64 (455.38-0ubuntu0.18.04.1, automatic), nvidia-kernel-source-455:amd64 (455.38-0ubuntu0.18.04.1, automatic)
    Upgrade: linux-libc-dev:amd64 (4.15.0-123.126, 4.15.0-124.127), libnvidia-compute-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-compute-435:i386 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-encode-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-encode-435:i386 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), nvidia-kernel-common-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), xserver-xorg-video-nvidia-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-gl-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-gl-435:i386 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), grub-common:amd64 (2.02-2ubuntu8.18, 2.02-2ubuntu8.19), libnvidia-fbc1-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-fbc1-435:i386 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-decode-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-decode-435:i386 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), slack-desktop:amd64 (4.11.0, 4.11.1), google-chrome-stable:amd64 (86.0.4240.193-1, 87.0.4280.66-1), gdb:amd64 (8.1-0ubuntu3.2, 8.1.1-0ubuntu1), grub2-common:amd64 (2.02-2ubuntu8.18, 2.02-2ubuntu8.19), libnvidia-cfg1-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), nvidia-utils-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), nvidia-dkms-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), grub-efi-amd64-bin:amd64 (2.02-2ubuntu8.18, 2.02-2ubuntu8.19), nvidia-compute-utils-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), linux-headers-oem:amd64 (4.15.0.1101.105, 4.15.0.1102.106), libnvidia-ifr1-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), libnvidia-ifr1-435:i386 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), nvidia-driver-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), linux-oem:amd64 (4.15.0.1101.105, 4.15.0.1102.106), grub-efi-amd64:amd64 (2.02-2ubuntu8.18, 2.02-2ubuntu8.19), grub-efi-amd64-signed:amd64 (1.93.20+2.02-2ubuntu8.18, 1.93.21+2.02-2ubuntu8.19), gdbserver:amd64 (8.1-0ubuntu3.2, 8.1.1-0ubuntu1), libnvidia-common-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1), linux-image-oem:amd64 (4.15.0.1101.105, 4.15.0.1102.106), nvidia-kernel-source-435:amd64 (435.21-0ubuntu0.18.04.3, 455.38-0ubuntu0.18.04.1)
    End-Date: 2020-11-19  09:19:22
    Last edited by jeremy31; 4 Weeks Ago at 10:10 PM. Reason: code tags

  2. #2
    Join Date
    Mar 2010
    Location
    Squidbilly-Land
    Beans
    22,149
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: Screen resolution after update

    Which GPU? Is it still supported?

    I'm using v430 on my 16.04 desktop with a 1030 GPU.
    Code:
    $ dpkg -l|grep nvid
    ii  nvidia-430      430.64-0ubuntu0~gpu16.04.6     amd64    NVIDIA binary driver - version 430.64
    Is the nvidia driver actually loaded and being used?
    To check that:
    Code:
    $ lsmod |grep nvid
    nvidia_uvm            819200  0
    nvidia_drm             45056  2
    nvidia_modeset       1114112  3 nvidia_drm
    nvidia              19046400  84 nvidia_uvm,nvidia_modeset
    drm_kms_helper        172032  1 nvidia_drm
    drm                   401408  5 drm_kms_helper,nvidia_drm
    ipmi_msghandler        53248  2 ipmi_devintf,nvidia
    To get the correct driver,
    Code:
    sudo ubuntu-drivers autoinstall
    should handle it for nvidia with Ubuntu LTS releases.

    If a GPU driver gets changed, a reboot of the OS is required so the OS can load it.

    BTW, whenever posting output from a terminal, please, please, please, use code tags.
    https://ubuntuforums.org/misc.php?do=bbcode#code explains how.
    Last edited by TheFu; November 19th, 2020 at 09:48 PM.

  3. #3
    Join Date
    Jul 2019
    Location
    Beauvais France
    Beans
    109
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Screen resolution after update

    I too had a strange behaviour after a reboot for update.
    no more GUI only text console.
    The solution was to reboot the HDMI TV I use as monitor.
    HTH
    Happy user of Ubuntu-20.04 on a Beelink BT3pro mini PC

  4. #4
    Join Date
    Sep 2007
    Beans
    21

    Re: Screen resolution after update

    Strangely, on a much higher resolution at home,
    no problem, but here at work, still.


    Code:
    $ sudo ubuntu-drivers autoinstall
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    0 upgraded, 0 newly installed, 0 to remove and 8 not upgraded.
    Anyways, here are the outputs of dpkg and lsmod
    Code:
    $ dpkg -l | grep nvid
    ii  libnvidia-cfg1-455:amd64                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA binary OpenGL/GLX configuration library
    ii  libnvidia-common-455                                             455.38-0ubuntu0.18.04.1                          all          Shared files used by the NVIDIA libraries
    rc  libnvidia-compute-410:amd64                                      410.93-0ubuntu0~18.04.1                          amd64        NVIDIA libcompute package
    rc  libnvidia-compute-435:amd64                                      455.38-0ubuntu0.18.04.1                          amd64        Transitional package for libnvidia-compute-455
    ii  libnvidia-compute-455:amd64                                      455.38-0ubuntu0.18.04.1                          amd64        NVIDIA libcompute package
    ii  libnvidia-compute-455:i386                                       455.38-0ubuntu0.18.04.1                          i386         NVIDIA libcompute package
    ii  libnvidia-decode-455:amd64                                       455.38-0ubuntu0.18.04.1                          amd64        NVIDIA Video Decoding runtime libraries
    ii  libnvidia-decode-455:i386                                        455.38-0ubuntu0.18.04.1                          i386         NVIDIA Video Decoding runtime libraries
    ii  libnvidia-encode-455:amd64                                       455.38-0ubuntu0.18.04.1                          amd64        NVENC Video Encoding runtime library
    ii  libnvidia-encode-455:i386                                        455.38-0ubuntu0.18.04.1                          i386         NVENC Video Encoding runtime library
    ii  libnvidia-extra-455:amd64                                        455.38-0ubuntu0.18.04.1                          amd64        Extra libraries for the NVIDIA driver
    ii  libnvidia-fbc1-455:amd64                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA OpenGL-based Framebuffer Capture runtime library
    ii  libnvidia-fbc1-455:i386                                          455.38-0ubuntu0.18.04.1                          i386         NVIDIA OpenGL-based Framebuffer Capture runtime library
    ii  libnvidia-gl-455:amd64                                           455.38-0ubuntu0.18.04.1                          amd64        NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
    ii  libnvidia-gl-455:i386                                            455.38-0ubuntu0.18.04.1                          i386         NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
    ii  libnvidia-ifr1-455:amd64                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA OpenGL-based Inband Frame Readback runtime library
    ii  libnvidia-ifr1-455:i386                                          455.38-0ubuntu0.18.04.1                          i386         NVIDIA OpenGL-based Inband Frame Readback runtime library
    rc  nvidia-compute-utils-410                                         410.93-0ubuntu0~18.04.1                          amd64        NVIDIA compute utilities
    ii  nvidia-compute-utils-455                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA compute utilities
    rc  nvidia-dkms-410                                                  410.93-0ubuntu0~18.04.1                          amd64        NVIDIA DKMS package
    ii  nvidia-dkms-455                                                  455.38-0ubuntu0.18.04.1                          amd64        NVIDIA DKMS package
    ii  nvidia-driver-435                                                455.38-0ubuntu0.18.04.1                          amd64        Transitional package for nvidia-driver-455
    ii  nvidia-driver-455                                                455.38-0ubuntu0.18.04.1                          amd64        NVIDIA driver metapackage
    rc  nvidia-kernel-common-410                                         410.93-0ubuntu0~18.04.1                          amd64        Shared files used with the kernel module
    ii  nvidia-kernel-common-455                                         455.38-0ubuntu0.18.04.1                          amd64        Shared files used with the kernel module
    ii  nvidia-kernel-source-455                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA kernel source package
    ii  nvidia-prime                                                     0.8.8.2                                          all          Tools to enable NVIDIA's Prime
    ii  nvidia-settings                                                  440.82-0ubuntu0.18.04.1                          amd64        Tool for configuring the NVIDIA graphics driver
    ii  nvidia-utils-455                                                 455.38-0ubuntu0.18.04.1                          amd64        NVIDIA driver support binaries
    ii  xserver-xorg-video-nvidia-455                                    455.38-0ubuntu0.18.04.1                          amd64        NVIDIA binary Xorg driver
    $ lsmod | grep nvid
    nvidia_uvm            970752  0
    nvidia_drm             49152  5
    nvidia_modeset       1216512  8 nvidia_drm
    nvidia              27656192  448 nvidia_uvm,nvidia_modeset
    drm_kms_helper        172032  2 nvidia_drm,i915
    drm                   401408  20 drm_kms_helper,nvidia_drm,i915
    So still wondering...
    (Thanks for the tag reference!)

    Cheers,
    François

  5. #5
    Join Date
    May 2013
    Location
    Galiza
    Beans
    3,246
    Distro
    Ubuntu

    Re: Screen resolution after update

    You have a mix of different Nvidia drivers versions.
    That is always bad but if it works do not touch it for the moment.
    If it breaks then purge all Nvidia drivers and install only the recommended version for your card.

  6. #6
    Join Date
    Mar 2010
    Location
    Squidbilly-Land
    Beans
    22,149
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: Screen resolution after update

    Code:
    ii  nvidia-driver-435
    ii  nvidia-driver-455
    Plus there are i915 drivers for the Intel GPU.

    As said above, I'd remove all the nvidia drivers
    Code:
    sudo apt-get remove --purge nvidia*
    reboot
    then install the recommended one (1) using ubuntu-drivers. After that, rebooting again will probably be needed.

    Note that I used 'apt-get', not 'apt' for the purge. apt-get supports wildcards which apt does not.

    After the first reboot, a GUI may not happen. Don't worry. Just login (may need to change to a different console (use <cntl>-<alt>-F1 or F3 or F6 ... to find alternate consoles) and run the ubuntu-driver tool

  7. #7
    Join Date
    Sep 2007
    Beans
    21

    Re: Screen resolution after update

    Back to university, and no real change. Maybe I did something wrong?

    After I ran sudo apt-get remove --purge nvidia* and and sudo ubuntu-drivers autoinstall,
    the result of dpkg and lsmod

    Code:
    $ dpkg -l | grep nvid
    ii  libnvidia-cfg1-455:amd64                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA binary OpenGL/GLX configuration library
    ii  libnvidia-common-455                                             455.38-0ubuntu0.18.04.1                          all          Shared files used by the NVIDIA libraries
    rc  libnvidia-compute-410:amd64                                      410.93-0ubuntu0~18.04.1                          amd64        NVIDIA libcompute package
    rc  libnvidia-compute-435:amd64                                      455.38-0ubuntu0.18.04.1                          amd64        Transitional package for libnvidia-compute-455
    ii  libnvidia-compute-455:amd64                                      455.38-0ubuntu0.18.04.1                          amd64        NVIDIA libcompute package
    ii  libnvidia-compute-455:i386                                       455.38-0ubuntu0.18.04.1                          i386         NVIDIA libcompute package
    ii  libnvidia-decode-455:amd64                                       455.38-0ubuntu0.18.04.1                          amd64        NVIDIA Video Decoding runtime libraries
    ii  libnvidia-decode-455:i386                                        455.38-0ubuntu0.18.04.1                          i386         NVIDIA Video Decoding runtime libraries
    ii  libnvidia-encode-455:amd64                                       455.38-0ubuntu0.18.04.1                          amd64        NVENC Video Encoding runtime library
    ii  libnvidia-encode-455:i386                                        455.38-0ubuntu0.18.04.1                          i386         NVENC Video Encoding runtime library
    ii  libnvidia-extra-455:amd64                                        455.38-0ubuntu0.18.04.1                          amd64        Extra libraries for the NVIDIA driver
    ii  libnvidia-fbc1-455:amd64                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA OpenGL-based Framebuffer Capture runtime library
    ii  libnvidia-fbc1-455:i386                                          455.38-0ubuntu0.18.04.1                          i386         NVIDIA OpenGL-based Framebuffer Capture runtime library
    ii  libnvidia-gl-455:amd64                                           455.38-0ubuntu0.18.04.1                          amd64        NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
    ii  libnvidia-gl-455:i386                                            455.38-0ubuntu0.18.04.1                          i386         NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
    ii  libnvidia-ifr1-455:amd64                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA OpenGL-based Inband Frame Readback runtime library
    ii  libnvidia-ifr1-455:i386                                          455.38-0ubuntu0.18.04.1                          i386         NVIDIA OpenGL-based Inband Frame Readback runtime library
    ii  nvidia-compute-utils-455                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA compute utilities
    ii  nvidia-dkms-455                                                  455.38-0ubuntu0.18.04.1                          amd64        NVIDIA DKMS package
    ii  nvidia-driver-455                                                455.38-0ubuntu0.18.04.1                          amd64        NVIDIA driver metapackage
    ii  nvidia-kernel-common-455                                         455.38-0ubuntu0.18.04.1                          amd64        Shared files used with the kernel module
    ii  nvidia-kernel-source-455                                         455.38-0ubuntu0.18.04.1                          amd64        NVIDIA kernel source package
    ii  nvidia-prime                                                     0.8.8.2                                          all          Tools to enable NVIDIA's Prime
    ii  nvidia-settings                                                  440.82-0ubuntu0.18.04.1                          amd64        Tool for configuring the NVIDIA graphics driver
    ii  nvidia-utils-455                                                 455.38-0ubuntu0.18.04.1                          amd64        NVIDIA driver support binaries
    ii  xserver-xorg-video-nvidia-455                                    455.38-0ubuntu0.18.04.1                          amd64        NVIDIA binary Xorg driver
    
    $lsmod |grep nvid
    nvidia_uvm            970752  0
    nvidia_drm             49152  5
    nvidia_modeset       1216512  8 nvidia_drm
    nvidia              27656192  430 nvidia_uvm,nvidia_modeset
    drm_kms_helper        172032  2 nvidia_drm,i915
    drm                   401408  20 drm_kms_helper,nvidia_drm,i915
    And still unable to change the resolution of my monitor to 2560x1440. Actually not completely true. I tried to change it using nvidia-settings. Kind of work but the result looks terrible.
    I also played with gtf and xrandr, not sure I understand how it works. Resolution and rate are from Lenovo's (ThinkVision 20-27 2540x1440)

    Code:
    $ gtf 2560 1440 60
    
      # 2560x1440 @ 60.00 Hz (GTF) hsync: 89.40 kHz; pclk: 311.83 MHz
      Modeline "2560x1440_60.00"  311.83  2560 2744 3024 3488  1440 1441 1444 1490  -HSync +Vsync
    
    $ xrandr --newmode "2560x1440_60.00"  311.83  2560 2744 3024 3488  1440 1441 1444 1490  -HSync +Vsync
    $ xrandr --addmode DP-5 "2560x1440_60.00"
    X Error of failed request:  BadMatch (invalid parameter attributes)
      Major opcode of failed request:  140 (RANDR)
      Minor opcode of failed request:  18 (RRAddOutputMode)
      Serial number of failed request:  66
      Current serial number in output stream:  67
    Completely stuck...
    Any help greatly appreciated
    François

  8. #8
    Join Date
    Sep 2007
    Beans
    21

    Re: Screen resolution after update

    With the local lockdown, I probably won't need a solution before the new year, but still... Maybe someone could point to Any better location where I could ask?

    Cheers,
    François

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