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  1. #1
    Join Date
    Sep 2017
    Location
    Aukland
    Posts
    17

    Adding custom reslution: xrandr: Configure crtc

    These are the steps that I am following

    Code:
    gtf 1920 1080 60
    Output was
    # 1920x1080 @ 60.00 Hz (GTF) hsync: 67.08 kHz; pclk: 172.80 MHz
    Modeline "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
    I then did the following
    Code:
    xrandr --newmode "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync
    xrandr --addmode  XWAYLAND0 1920x1080_60.00
    When I then run
    Code:
    xrandr --output  XWAYLAND0 --mode 1920x1080_60.00
    I get
    xrandr: Configure crtc 0 failed
    Last edited by abasel; 8th September 2017 at 11:55 PM.

  2. #2
    Join Date
    Sep 2017
    Location
    Aukland
    Posts
    17

    Re: Adding custom reslution: xrandr: Configure crtc

    I noticed that after running

    Code:
    xrandr --newmode "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync
    That when I query xrandr ( xrandr -q)

    That I get the following:

    [QUOTE]Screen 0: minimum 320 x 200, current 2646 x 768, maximum 8192 x 8192
    XWAYLAND0 connected 1280x720+1366+0 (normal left inverted right x axis y axis) 600mm x 340mm
    1280x720 59.86*+
    XWAYLAND1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 310mm x 170mm
    1366x768 59.80*+
    1920x1080_60.00 (0x286) 172.800MHz -HSync +VSync
    h: width 1920 start 2040 end 2248 total 2576 skew 0 clock 67.08KHz
    v: height 1080 start 1081 end 1084 total 1118 clock 60.00Hz[/CODE]

    But the last mode should be under XWAYLAND0; if I understand things correctly.

  3. #3
    Join Date
    Sep 2017
    Location
    Aukland
    Posts
    17

    Re: Adding custom reslution: xrandr: Configure crtc

    Not sure but the mode might have already existed.

  4. #4
    Join Date
    Sep 2017
    Location
    Aukland
    Posts
    17

    Re: Adding custom reslution: xrandr: Configure crtc

    I disabled Wayland in /etc/gdm/custom.conf and I could then create my own customization.

    Code:
    WaylandEnable=false
    I then made the custom resolution persistent but following https://ask.fedoraproject.org/en/que...rs-resolution/
    Last edited by abasel; 9th September 2017 at 11:19 AM.

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