[Bug 98695] [byt bisected] WARN_ON(!power_domains->domain_use_count[domain])

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Dec 20 11:03:57 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=98695

--- Comment #16 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to Ville Syrjala from comment #15)
> Created attachment 128576 [details] [review]
> [PATCH] drm/i915: Force VDD off on the new power seqeuencer before  starting
> to use it
> 
> The only explanation I can derive from the log is that the VDD force bit is
> left on by the BIOS for the other power sequencer as well.
> 
> This patch should make sure our state tracking will be synced properly with
> that reality. Please test.

Oh and I'd like to see the dmesg w/ drm.debug=0xe with that patch whether or
not it fixes the problem.

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