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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 87796] radeonsi 120Hz graphic glitches
Date: Wed, 14 Jan 2015 02:15:41 +0000	[thread overview]
Message-ID: <bug-87796-502-j0645tePtB@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-87796-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=87796

--- Comment #13 from Andreas Hartmetz <ahartmetz@gmail.com> ---
I have a somewhat similar issue with radeonsi, latest everything (xorg, llvm,
mesa) except Linux kernel which is 3.17.8, and Cape Verde PRO (aka Radeon HD
7750) hardware. The screen sometimes turns completely black for a frame. It
happened a few times per hour. In the past this could be reliably avoided by
pinning the power setting to min or max, but DPM changes prevented that fix
from working.
Now that I know this:
echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level
(looks similar to the one that used to work a few kernels earlier?) I can avoid
the problem again, but of course at the cost of power consumption. The
underlying issue might be the same timing problem. I can file a new bug if you
think it is a different issue.

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  parent reply	other threads:[~2015-01-14  2:15 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-28 14:00 [Bug 87796] radeonsi 120Hz graphic glitches bugzilla-daemon
2014-12-29 16:47 ` bugzilla-daemon
2015-01-07  7:44 ` bugzilla-daemon
2015-01-13 18:57 ` bugzilla-daemon
2015-01-13 19:12 ` bugzilla-daemon
2015-01-13 19:32 ` bugzilla-daemon
2015-01-13 20:40 ` bugzilla-daemon
2015-01-13 20:49 ` bugzilla-daemon
2015-01-13 20:49 ` bugzilla-daemon
2015-01-13 21:04 ` bugzilla-daemon
2015-01-13 21:15 ` bugzilla-daemon
2015-01-13 21:24 ` bugzilla-daemon
2015-01-13 21:44 ` bugzilla-daemon
2015-01-13 22:02 ` bugzilla-daemon
2015-01-14  2:15 ` bugzilla-daemon [this message]
2015-01-14 14:26 ` bugzilla-daemon
2015-01-14 16:38 ` bugzilla-daemon
2015-01-14 17:05 ` bugzilla-daemon
2015-01-15  0:08 ` bugzilla-daemon
2015-01-22 17:28 ` bugzilla-daemon
2015-02-18 14:06 ` bugzilla-daemon
2015-02-18 14:23 ` bugzilla-daemon
2015-02-18 14:24 ` bugzilla-daemon
2015-03-17 18:15 ` bugzilla-daemon
2015-03-18 14:07 ` bugzilla-daemon
2015-03-18 14:25 ` bugzilla-daemon
2015-03-18 14:55 ` bugzilla-daemon
2015-03-18 18:59 ` bugzilla-daemon
2015-03-18 21:08 ` bugzilla-daemon
2015-03-19  1:00 ` bugzilla-daemon
2015-04-12 15:20 ` bugzilla-daemon
2015-04-12 20:37 ` bugzilla-daemon
2015-04-12 21:41 ` bugzilla-daemon
2015-04-12 23:00 ` bugzilla-daemon
2019-11-19  9:00 ` bugzilla-daemon

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