Here are the exact commits that fix this issue for both radeon and
amdgpu drivers on 4.10 mainline in case anyone comes across this for SI
cards.
https://github.com/torvalds/linux/commit/e894f7ef32deaff134d4c78106a3819eb4ff4136.patch
https://github.com/torvalds/linux/commit/85d2fce605e4625871a4028
@jsalisbur I found the exact commit that fixes this issue for SI cards
in case anyone else comes across this:
https://git.launchpad.net/~ubuntu-kernel-test/ubuntu/+source/linux/+git
/mainline-crack/commit/?id=29a73d906bd386839015602c4bd35ef2e3531abc
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I think a fix for this was committed a few days ago. Possibly
http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-
firmware.git/commit/?id=e8fe3bfd306d376c035c754e6c7d36826a0e3f78
I copied all the new firmware from radeon and amdgpu over to
/lib/firmware and rebuilt the latest 4.10 kernel a
similar bug with the same card
https://bugs.freedesktop.org/show_bug.cgi?id=73116
By the way, I tried using amdgpu driver by compiling a daily kernel
using Enable amdgpu support for SI/CIK parts and blacklisting radeon and
the issue still exists with the amdgpu driver as well.
** Bug watch added
** Description changed:
4.4.0-53 WORKS FINE
4.4.0-62 DOES NOT WORK (screen flickers)
It seems there is a problem with powersafe:
With auto:
echo auto > /sys/class/drm/card0/device/power_dpm_force_performance_level
you will see heavy screen flickering on higher display resol
Screen flickering is happening in 4.4.0-53 now as well, but much much
less often.
I can try earlier versions but this was never an issue in earlier
kernels.
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
screen flickering raedon
Status in linux package in Ub
apport information
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apport information
** Tags added: apport-collected serena
** Description changed:
4.4.0-53 WORKS FINE
4.4.0-62 DOES NOT WORK (screen flickers)
It seems there is a problem with powersafe:
With auto:
echo auto > /sys/class/drm/card0/device/power_dpm_force_performance_level
Public bug reported:
4.4.0-53 WORKS FINE
4.4.0-62 DOES NOT WORK (screen flickers)
It seems there is a problem with powersafe:
With auto:
echo auto > /sys/class/drm/card0/device/power_dpm_force_performance_level
you will see heavy screen flickering on higher display resolutions
With low or hig
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