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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 98987] [RS690] BUG: soft lockup when radeon modesetting
Date: Mon, 05 Dec 2016 15:36:33 +0000	[thread overview]
Message-ID: <bug-98987-502-T7SuGI4vDW@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-98987-502@http.bugs.freedesktop.org/>


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https://bugs.freedesktop.org/show_bug.cgi?id=98987

--- Comment #7 from Václav Ovsík <vaclav.ovsik@gmail.com> ---
Bing - HDMI audio is probably a source of problem.

I tried to add radeon.audio=0. I tested this before already, but I tried this
time again with 4.9-rc7. No bug in console appeared, but kernel lock down
(<Alt>-<SysRq>-B don't worked). I tried I think 3-times - no OOPS on console,
only hang. Then I get idea to look into BIOS if HDMI audio is enabled there and
really, HDMI was disabled completely. I enable HDMI in the BIOS and disable
HDMI audio only  and system started normaly. I tried combinations:

BIOS    BIOS            radeon.audio=0
HDMI    HDMI audio
----------------------------------------------------------------
0       -               no                      OOPS
0       -               yes                     OOPS
yes     yes             no                      OOPS
yes     yes             yes                     OOPS
yes     no              no                      OK

So to avoid problems with the radeon driver the HDMI audio must be disabled in
BIOS and it is possible only if the HDMI connector is enabled, because
otherwise the option (HDMI audio) is greyed.
I can't remember if I had this setting in the past, maybe yes. Disabled HDMI
may be the result of BIOS "Load system default", because other flaws on this
mobo with networking some time ago (.

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  parent reply	other threads:[~2016-12-05 15:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-03 22:00 [Bug 98987] [RS690] BUG: soft lockup when radeon modesetting bugzilla-daemon
2016-12-03 22:03 ` bugzilla-daemon
2016-12-03 22:04 ` bugzilla-daemon
2016-12-03 22:07 ` bugzilla-daemon
2016-12-03 22:08 ` bugzilla-daemon
2016-12-04  9:47 ` bugzilla-daemon
2016-12-04 20:03 ` bugzilla-daemon
2016-12-05  8:10 ` bugzilla-daemon
2016-12-05 15:36 ` bugzilla-daemon [this message]
2019-11-19  9:20 ` bugzilla-daemon

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