[Bug 91393] [bdw edp] Screen Flickering
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sat Dec 5 03:00:17 PST 2015
https://bugs.freedesktop.org/show_bug.cgi?id=91393
flux242 <flux242 at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
i915 features|display/Other |
--- Comment #43 from flux242 <flux242 at gmail.com> ---
hi, I'm also experiencing bad flickering of my laptop screen.
I have installed xubuntu 15.10 on Acer C740:
a at chrome:~$ 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)
a at chrome:~$ uname -a
Linux chrome 4.2.0-19-generic #23-Ubuntu SMP Wed Nov 11 11:39:30 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
But today display was blanked after 15 minutes of inactivity and when I woken
it up I saw no more flickering and this kernel message:
Dec 5 10:16:48 chrome kernel: [ 3708.390613] [drm:intel_dp_start_link_train
[i915]] *ERROR* failed to enable link training
please suggest a way (usingn a kernel parameter) to disable link training until
a bugfix is backported
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