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Mohammad Etemaddar
Asked: 2017-11-07 04:07:53 +0800 CST

Wayland how to set a custom resolution

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Old title - "change resolution to 1280x1024 using xrandr gives: X Error of failed request: BadValue (integer parameter out of range for operation)"

I have installed a fresh Ubuntu 17.10 and have a monitor with 5:4 resolution. settings has no resolution higher than 1024x768. But I need the resolution 1280x1024 (5:4). I use the default motherboard graphics card:

# lspci|grep VGA
00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03)

Also xrandr gives the following:

$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
XWAYLAND0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      59.92*+

I tried to add the 1280x1024 resolution using xrandr. so first created the resolution information using gtf:

$ gtf 1280 1024 60

  # 1280x1024 @ 60.00 Hz (GTF) hsync: 63.60 kHz; pclk: 108.88 MHz
  Modeline "1280x1024_60.00"  108.88  1280 1360 1496 1712  1024 1025 1028 1060  -HSync +Vsync

Then added to resolutions:

xrandr --newmode "1280x1024_60.00"  108.88  1280 1360 1496 1712  1024 1025 1028 1060  -HSync +Vsync

then again did the command: xrandr --addmode XWAYLAND0 1280x1024_60.00

Then nothing changed. When I tried to change it using xrandr --output XWAYLAND0 --mode 1280x1024_60.00 --rate 60 But an error occurred:

$ xrandr --output XWAYLAND0 --mode 1280x1024  --rate 60
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  7 (RRSetScreenSize)
  Value in failed request:  0x0
  Serial number of failed request:  21
  Current serial number in output stream:  22

I don't know what did I do wrong. Or how to change resolution to the correct one: 1280x1024

intel-graphics

2 Answers

  1. You can try to set a custom resolution with wayland with some effort and mixed results.

    You should probably start by filing a bug report, including your graphics card and monitor(s), against wayland

    How do I report a bug?

    https://help.ubuntu.com/community/ReportingBugs

    Adding a Custom Resolution

    xrandr will NOT work with Wayland !!

    You can try to add a custom resolution using your modline similar to how you would with xrandr, but with a few additional steps.

    First, I am not sure if this works with secure boot, so I advise you start by Disabling secure boot

    From https://ask.fedoraproject.org/en/question/99867/how-to-add-a-custom-resolution-to-weyland-fedora-25/ and https://wiki.archlinux.org/index.php/Kernel_mode_setting#Forcing_modes_and_EDID

    First, you'll need to clone edid-generator. Then you can pass it your modeline (with the same arguments you gave xrandr --newmode

    From https://github.com/akatrevorjay/edid-generator

    Install requirements

    sudo apt install zsh edid-decode automake dos2unix

    Download & extract

    wget https://github.com/akatrevorjay/edid-generator/archive/master.zip
unzip master.zip 
cd edid-generator-master

    The binary is in ~/edid-generator-master as modeline2edid

    Run modeline2edid with your modline, using the example in askfedora link,

    ./modeline2edid - <<< 'Modeline "3840x2160" 533.6 3840 3982 4027 4064 2160 2170 2180 2190 +hsync +vsync'
Searching for runaway unicorns in '/dev/stdin'
-- Found naughty unicorn: Modeline "3840x2160" 533.6 3840 3982 4027 4064 2160 2170 2180 2190 +hsync +vsync
Wrote 3840x2160.S

    Modify that command to your desired resolution.

    See How to set a custom resolution? for details (if needed)

    Then generate the edid binary with make

    make #output not posted

    You will now have your new .bin , 3840x2160.bin in this case.

    Now, from The Arch wiki enable your custom resoulution

    sudo mkdir /usr/lib/firmware/edid
sudo cp 3840x2160.bin /usr/lib/firmware/edid

    Change 3840x2160.bin to your custom resolution.

    Note: There are already some custom .bin included, you can see them with ls *.bin I am not sure if you can use them without make or not.

    Test by rebooting

    When you reboot, edit the kernel line in grub, adding

    drm_kms_helper.edid_firmware=edid/3840x2160.bin

    See How do I add a kernel boot parameter? and https://wiki.ubuntu.com/Kernel/KernelBootParameters

    Go down to the line starting with linux and add drm_kms_helper.edid_firmware=edid/3840x2160.bin at the end of the line after ro quiet splash

    Assuming all that works, make it permanent 

    sudo nano /etc/default/grub

    Add in the custom resolutoin

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash drm_kms_helper.edid_firmware=edid/3840x2160.bin"

    Save your edit Ctrl+x

    update grub

    sudo update-grub

    Reboot and enjoy your custom resolution

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  2. sudo $EDITOR /etc/default/grub

    Find GRUB_CMDLINE_LINUX_DEFAULT line, add in quotes at the end (usually after splash):

    video=VGA-1:1920x1080@60

    Replace VGA-1 with your X output (i.e. HDMI-1, DVI-0, DP-1, etc.), save, exit editor, then:

    sudo update-grub

    After reboot your grub will tell your kernel that whatever is connected to VGA-1 supports 1920x1080 at 60Hz. Both Xorg and Wayland get this information from the kernel. Worked for me to run old Samsung SyncMaster 2343NW as a 2nd screen through DVI to D-SUB adapter.

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