Wiki/calibrateMonitor.md

Calibrate Monitor

Steps

• Create new .icc profile using DisplayCAL

  • Reset current profile: Tools -> Video Card Gamma Table -> Reset Video Card Gamma Table
  • Select Settings Default (Gamma 2.2)
  • Display & Instrument
    • Display
      • Select correct display
      • Untick everything
      • Output levels Full Range RGB 0-255
      • Correction Auto (None)
    • Instrument
      • Select correct instrument
      • Untick everything
      • Select Instrument mode LCD (generic)
  • Calibration
    • (Optional) Enable Ambinet light level adjustment
      • Determine value using instrument (generally between 120 - 180)
  • Profiling
    • Enable Black Point Compensation
  • Connect instrument
  • Check if instrument detected by pressing on Display & Instrument -> Arrow cycle
  • Disable display sleep xset s off && xset -dpms
  • Disable redshift
  • Start by clicking Callibrate & Profile
  • Make sure display has right settings
    • Start Mesure
      • Make sure brightness and colors of monitor are good
      • Disable again
  • Continue on to callbiration

• Copy profile form ~/.local/share/DisplayCAL/storage/<somePath>/<someFile>.icc to /usr/share/color/icc/colord/ (tried ~/.local/share/icc/ but somehow did not work)

• Run systemctl restart colord to make colord find new profiles

• Start xiccd and let it run

• Figure out Device ID from colormgr get-devices of desired monitor

• Figure out Profile ID from colormgr get-profiles of desired profile

• Search for profile colormgr find-profile-by-filename <ProfileID>

• Add profile to monitor colormgr device-add-profile <DeviceID> <ProfileID>

• Set profile as default for monitor colormgr device-make-profile-default <DeviceID> <ProfileID>

• Quit xiccd

• Check that profile has successfully been loaded: xprop -display :0.0 -len 14 -root _ICC_PROFILE

• Really good article about the matter: https://web.archive.org/web/20221226110150/https://encrypted.pcode.nl/blog/index.html%3Fp=853.html