https://bugs.freedesktop.org/show_bug.cgi?id=98333
Martin Peres changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #18 from Alex Deucher ---
If the modes are only in the CEA extension block then this is a core drm issue.
The core EDID parser does not handles all of the CEA 4K modes yet. Patches
were proposed by several people, but I don't think
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #17 from Daniel J Blueman ---
Created attachment 129853
--> https://bugs.freedesktop.org/attachment.cgi?id=129853&action=edit
xrandr + Xorg.0.log + dmesg
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--- Comment #16 from Daniel J Blueman ---
I am experiencing the same 4K @ 30Hz limit with my RX460 and LG 27UD88-W
monitor via a Highspeed HDMI cable. I have enabled HDMI DeepColour on the
monitor, needed for the monitor to advertise 4K @ 60Hz.
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #15 from smoki ---
(In reply to wiak from comment #9)
> Hey i got the exact same issue with a Samsung HU7505 4k60 television using
> amdgpu on xubuntu 16.04.1/16.10, amdgpu-pro-16.50-362463 drivers work in
> 4k60 until the display is
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #14 from wiak at nwgat.net ---
Created attachment 128750
--> https://bugs.freedesktop.org/attachment.cgi?id=128750&action=edit
amdgpu-pro-xrandr.log
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--- Comment #13 from wiak at nwgat.net ---
Created attachment 128749
--> https://bugs.freedesktop.org/attachment.cgi?id=128749&action=edit
amdgpu-pro-xorg.log
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--- Comment #12 from wiak at nwgat.net ---
Created attachment 128748
--> https://bugs.freedesktop.org/attachment.cgi?id=128748&action=edit
amdgpu-pro-dmesg
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https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #11 from wiak at nwgat.net ---
Created attachment 128747
--> https://bugs.freedesktop.org/attachment.cgi?id=128747&action=edit
xrandr
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--- Comment #10 from wiak at nwgat.net ---
Created attachment 128746
--> https://bugs.freedesktop.org/attachment.cgi?id=128746&action=edit
xorg log
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https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #9 from wiak at nwgat.net ---
Hey i got the exact same issue with a Samsung HU7505 4k60 television using
amdgpu on xubuntu 16.04.1/16.10, amdgpu-pro-16.50-362463 drivers work in 4k60
until the display is turned off and then it gives "m
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #8 from wiak at nwgat.net ---
Created attachment 128745
--> https://bugs.freedesktop.org/attachment.cgi?id=128745&action=edit
dmesg log
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--- Comment #7 from John Bridgman ---
The NVidia ticket suggests this might be an EDID issue, with the display saying
that it supports 4:2:2 at 4K/60 Hz when in fact it only supports 4:2:0.
Or could have been an NVidia driver bug that caused pro
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #6 from Dillon Dixon ---
I was reminded today that this TV is a bit strange in that 4K @ 60 Hz only
works with 4:2:0 chroma, while the common expectation would perhaps be 4:4:4.
Perhaps that can help lead to a solution?
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https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #5 from Dillon Dixon ---
Just tried the patch. That added a 60 Hz mode back in, but when I try to switch
to it, I get no signal.
I can post logs if relevant.
Here is my output now from xrandr:
Screen 0: minimum 320 x 200, current 3
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #4 from Dillon Dixon ---
Thanks for responding to my ticket! Sorry, I didn't have time to record down
all the relevant information until recently.
Anyway, the 60 Hz mode is missing completely. I attached the relevant logs to
the tick
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #3 from Dillon Dixon ---
Created attachment 127712
--> https://bugs.freedesktop.org/attachment.cgi?id=127712&action=edit
xrandr, dmesg, and xorg logs
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--- Comment #2 from Harry Wentland ---
I don't have the same monitor but I don't have any problem lighting up with
HDMI 2.0 4k 60Hz with Alex's amd-staging-4.7 and the commit from a week ago:
commit 4fa58023f62a95e93f82a25cdceb87b19b69b27f
Autho
https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #1 from Alex Deucher ---
Is the issue that a 60 hz mode is not available or that a 60 hz mode does not
work? Please attach your xorg log, dmesg output and xrandr output. You may
need this drm patch:
https://lists.freedesktop.org/arc
https://bugs.freedesktop.org/show_bug.cgi?id=98333
Bug ID: 98333
Summary: 4K @ 60Hz over HDMI 2.0 not working with AMDGPU-DAL
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
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