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From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 91371] UVD not responding error during UVD initialization for AMD 7670M graphics
Date: Thu, 22 Jan 2015 15:50:45 +0000	[thread overview]
Message-ID: <bug-91371-2300-qFKwlszy5D@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-91371-2300@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=91371

--- Comment #5 from Adis Hamzić <adis@hamzadis.com> ---

I just tested the kernels 3.14.27 and 3.16.7.3 and they both display the issue. 

Now, I had used the 3.14.27 kernel for at least 10 days and I never noticed
this issue. In that time I was doing some kernel debugging which involved a
great number of cold and hard reboots so I think I would have noticed the issue
if it had been there. I'll test some older kernels soon.

What I found out during my testing was:
 * Setting radeon.dpm=0 fixes the issue.
 * Doing a hard reboot / poweroff has a very high chance of triggering the
problem, in fact I managed to reproduce it 10 consecutive times.
 * Doing a soft reboot has very little chance of triggering the problem. With
this I managed to have 10 consecutive successful boots.

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      parent reply	other threads:[~2015-01-22 15:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-15 19:29 [Bug 91371] New: UVD not responding error during UVD initialization for AMD 7670M graphics bugzilla-daemon
2015-01-15 19:30 ` [Bug 91371] " bugzilla-daemon
2015-01-21 11:32 ` bugzilla-daemon
2015-01-22  1:51 ` bugzilla-daemon
2015-01-22 10:47 ` bugzilla-daemon
2015-01-22 15:50 ` bugzilla-daemon [this message]

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