[Bug 93711] New: [bdw edp] i915 screen flickering after new start
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Jan 14 04:31:00 PST 2016
https://bugs.freedesktop.org/show_bug.cgi?id=93711
Bug ID: 93711
Summary: [bdw edp] i915 screen flickering after new start
Product: DRI
Version: unspecified
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: flux242 at gmail.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
Created attachment 121027
--> https://bugs.freedesktop.org/attachment.cgi?id=121027&action=edit
output of the lspci -vvv
to differentiate from the bug #91393 I'm creating a new one. It because I have
different symptoms and end solutions offered there do not help.
Here is a video to demonstrate the problem
https://www.youtube.com/watch?v=DZIR4qnfOH8
With the stock ubuntu 15.10 kernel version 4.2 this problem persists and
there's no way to get rid of it. With the current drm-intel-nightly kernel:
$ uname -a
Linux chrome 4.4.0-994-generic #201601112101 SMP Tue Jan 12 02:02:39 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux
the problem occurs only after a new boot. Then I need (almost blindly) login
into my system and start 'xset dpms force off' command once or several times
and then the flickering is gone even after I resume from the sleep.
$ sudo lshw -c video
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci at 0000:00:02.0
version: 08
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:43 memory:e0000000-e0ffffff memory:d0000000-dfffffff
ioport:1800(size=64)
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