[Bug 75895] New: [BYT] Media forcewake timeout with no displays connected
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Mar 7 09:21:13 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=75895
Priority: medium
Bug ID: 75895
CC: intel-gfx-bugs at lists.freedesktop.org
Assignee: intel-gfx-bugs at lists.freedesktop.org
Summary: [BYT] Media forcewake timeout with no displays
connected
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: imre.deak at gmail.com
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: DRM/Intel
Product: DRI
Created attachment 95310
--> https://bugs.freedesktop.org/attachment.cgi?id=95310&action=edit
dmesg for media forcewake lockup
I get the lockup in the attached dmesg by just booting -nightly without any
display connected on my Bayley Bay B0. Sometimes the 'waiting for the old ack
to clear' just times out and I manage to get to the shell, sometimes one of the
__raw_i915_read32(dev_priv, FORCEWAKE_ACK_MEDIA_VLV); reads in
__vlv_force_wake_get() will hard lock the machine, as in the attached dmesg.
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