[Bug 97265] New: GPU hang while using opera on 4k display on linux 4.7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97265

            Bug ID: 97265
           Summary: GPU hang while using opera on 4k display on linux 4.7
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: t.fryda at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 125651
  --> https://bugs.freedesktop.org/attachment.cgi?id=125651&action=edit
Error logs including dmesg, /sys/class/drm/card0/error, kernel config and
gentoo specific information such as installed packages and use flags

Occured during regular use of opera 39 on 4k display on laptop (DELL Inspiron
7548) with hybrid AMD GPU (m265) which is disabled (haven't even compiled
drivers for it).

Maybe unrelated but sometimes some horizontal artifacts appear on dotted lines
(such are used for example to notify user that some element is focused). These
dotted lines are during this error merge into semi-solid line which overflows
the element. But this happens only in same pixel row. Sometimes happens even
outside of X on TTY1. But this behaviour is very unusual and as such I've been
unable to trace the cause.


Desktop Environment: Gnome 3.18
Linux kernel: 4.7
x11-drivers/xf86-video-intel: 2.99.917-r2
media-libs/mesa: 11.0.6

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