From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 110199] [amdgpu] Screen flickering when using a 75Hz monitor paired with an RX 480 GPU
Date: Sun, 04 Aug 2019 21:33:44 +0000 [thread overview]
Message-ID: <bug-110199-502-YPy2LEnYp2@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-110199-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=110199
--- Comment #13 from 192k@protonmail.com ---
I can confirm this issue exists on rx560
i have discovered a workaround,
if you copy the stock powerplaytable to a file with
cat /sys/class/drm/card0/device/pp_table > pptable
then load the stock pptable with
sudo bash -c 'echo pptable > /sys/class/drm/card0/device/pp_table'
the flickering goes away without having to lock the mclk to the highest state
it may also be related to https://bugs.freedesktop.org/show_bug.cgi?id=110347
this bug.
by default at boot the voltage for the highest pstate is the maximum allowable
voltage(1150mv) not the powerplay defined voltage of 1025mv, all other pstates
are not effected
this is also corrected after reloading the pptable manually.
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next prev parent reply other threads:[~2019-08-04 21:33 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-19 19:13 [Bug 110199] [amdgpu] Screen flickering when using a 75Hz monitor paired with an RX 480 GPU bugzilla-daemon
2019-03-19 19:13 ` bugzilla-daemon
2019-03-24 6:54 ` bugzilla-daemon
2019-03-25 3:18 ` bugzilla-daemon
2019-03-25 10:09 ` bugzilla-daemon
2019-03-26 16:14 ` bugzilla-daemon
2019-03-26 16:41 ` bugzilla-daemon
2019-03-30 0:47 ` bugzilla-daemon
2019-04-04 13:43 ` bugzilla-daemon
2019-04-04 13:48 ` bugzilla-daemon
2019-04-13 17:55 ` bugzilla-daemon
2019-04-13 21:51 ` bugzilla-daemon
2019-07-28 11:49 ` bugzilla-daemon
2019-07-28 11:57 ` bugzilla-daemon
2019-07-28 12:20 ` bugzilla-daemon
2019-08-04 21:33 ` bugzilla-daemon [this message]
2019-09-10 23:37 ` bugzilla-daemon
2019-09-12 20:57 ` bugzilla-daemon
2019-11-19 9:17 ` bugzilla-daemon
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