[Bug 101343] New: [SKL][PSR] Intermittent screen freezes with PSR enabled on XPS 9350

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101343

            Bug ID: 101343
           Summary: [SKL][PSR] Intermittent screen freezes with PSR
                    enabled on XPS 9350
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: kubrick at fgv6.net
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

On a Dell XPS 13 9350 (i7-6560U, Iris Graphics 540), i915.enable_psr=1 causes
intermittent randomly spaced screen freezes that last for a couple of seconds.

Setting PSR=2 or 0 fixes the problem. Disabling FBC and running wayland both
reduce the frequency of theses freezes.

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