[Bug 76189] New: Black cursor and crash after boot on Haswell with fastboot=1 on drm-intel-nightly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76189

          Priority: medium
            Bug ID: 76189
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Black cursor and crash after boot on Haswell with
                    fastboot=1 on drm-intel-nightly
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: patrik.r.jakobsson at gmail.com
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 95836
  --> https://bugs.freedesktop.org/attachment.cgi?id=95836&action=edit
Black cursor

After booting the drm-intel-nightly (2014-03-14) on a Haswell with fastboot=1
the cursor is all black (see attachment). After a while the system stops
responding for a few seconds and starts spitting out warnings (see dmesg).

Doing a suspend/resume brings back the normal cursor and all is fine. I'm
having trouble bisecting this since I get hit by the EDP_FORCE_VDD regression
and have to suspend/resume in order to see anything at all.

The problem is present at b3064154dfd37deb386b1e459c54e1ca2460b3d5
where the EDP_FORCE_VDD bit (and my screen) is back.

I can bisect this by adding the EDP_FORCE_VDD fix on top of every bisect but I
would be happy if I can get a pointer to possible suspects first.

Thanks

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