Public bug reported:
HDMI colour looks dull, low contrast on Raspberry Pi.
Workaround/fix: Edit /boot/firmware/usercfg.txt and add a new line:
hdmi_pixel_encoding=2
** Affects: linux-firmware-raspi2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: raspi raspi-gfx raspi4
** Summary changed:
- HDMI colour looks dull, low contrast on Raspberry Pi
+ Raspberry Pi HDMI output looks dull, low contrast
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https://bugs.launchpad.net/bugs/1896186
Title:
Raspberry Pi HDMI output looks dull, low contrast
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