[Bug 100755] New: [HSW] linux next-20170407+ boots to a blank screen

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 21 19:09:42 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=100755

            Bug ID: 100755
           Summary: [HSW] linux next-20170407+ boots to a blank screen
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: rafael.ristovski at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 130972
  --> https://bugs.freedesktop.org/attachment.cgi?id=130972&action=edit
next-20170324 with fastboot=1, shows suspend/resume, works fine

Ever since next-20170407 (last good next-20170324, versions in-between not
tested) my laptops screen stopped turning on after resuming. 
Upon removing i915.fastboot=1 from cmdline, the display now turns off
immediately after boot, which means enabling fastboot only covered up the real
issue.

HW:
i7-4500U Haswell with HD 4400

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