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THIS IS NOT A PROBLEM ABOUT XORG

I have a singleboard PC with Intel N100 with 2 HDMI ports.

When arch boots, the color range changes to limited after i915 takeing over the display from UEFI framebuffer which is always full range.

When I changed display settings in Plasma Wayland session. Full color range will apply to not only the GUI session but also Plymouth and tty.

I want to change the color range when i915 is loaded or use commands to achieve this at startup.

I am working with OLED monitor so grey background caused by limited range is quite a problem for me to test stuffs on tty.

fbset -i output

mode "1920x1080"
    geometry 1920 1080 1920 1080 32
    timings 0 0 0 0 0 0 0
    rgba 8/16,8/8,8/0,0/0
endmode

Frame buffer device information:
    Name        : i915drmfb
    Address     : (nil)
    Size        : 8294400
    Type        : PACKED PIXELS
    Visual      : TRUECOLOR
    XPanStep    : 1
    YPanStep    : 1
    YWrapStep   : 0
    LineLength  : 7680
    Accelerator : No
Improve this question
4
  • Please post your framebuffer configuration found using sudo fbset -i (after i915 is loaded). Note that you may have to install the fbset utility via your distro's package manager (or as a binary)
    – melonfsck
    Commented May 30 at 14:55
  • 1
    I added fbset -i output for this
    – CreeperKong
    Commented May 31 at 10:59
  • Can you post the same after you change the settings in GUI and return to the VT (TTY), more specifically, the rgba setting
    – melonfsck
    Commented May 31 at 16:09
  • Unfortunately, the output is the same
    – CreeperKong
    Commented Jun 1 at 4:59

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