https://bugs.freedesktop.org/show_bug.cgi?id=110362
Bug ID: 110362
Summary: Need an option to set HDMI out to Full RGB 4:4:4
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/AMDgpu
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Hi!
I have an old tv that only works well with FullRGB HDMI signals.
If YCbCr is used then the tv interrupts the hdmi link every few minutes and
after a new hdmi negotiation the screen turns greenish. So I have to switch to
another hdmi input and switch back to force a new negotiation which maybe
works- very annoying.
Running Windows I can switch the output to FullRGB in AMD Radeon Software
Adrenalin edition and everything is fine, so I assume that in Linux YCbCr is
used by default (too).
In X.Org log file I find "AMDGPU(0): Supported color encodings: RGB 4:4:4 YCrCb
4:4:4" so it seems to be possible.
But X.Org config:
Option "ColorRange""Full"
Option "ColorSpace""RGB"
Is ignored.
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