[Bug 93423] New: [i915] [skl] Screen remains black until Xorg restart (VT switching does not appear to work)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93423

            Bug ID: 93423
           Summary: [i915] [skl] Screen remains black until Xorg restart
                    (VT switching does not appear to work)
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mike at fireburn.co.uk
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 120564
  --> https://bugs.freedesktop.org/attachment.cgi?id=120564&action=edit
Dmesg after black screen

Sometimes when I return to my Skylake laptop the screen stays black - I can't
switch VT's either - or if they are switching I still can't see anything

I can remote into my machine and restart sddm which gets everything working
again

I saw errors in the logs - I'm attaching the dmesg - some of them have been
reported to the mailing lists but I don't see any bugs raised for the issue

My machine is too new to know if this is a regression or not and it seems to
manifest after days of uptime so I don't think I could really bisect this

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