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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Need an option to set HDMI out to Full RGB 4:4:4"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110362">110362</a>
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<th>Summary</th>
<td>Need an option to set HDMI out to Full RGB 4:4:4
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<th>Product</th>
<td>xorg
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Driver/AMDgpu
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<th>Assignee</th>
<td>xorg-driver-ati@lists.x.org
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<th>Reporter</th>
<td>Heiko.Lechner@ruhr-uni-bochum.de
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<pre>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.</pre>
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