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<body><span class="vcard"><a class="email" href="mailto:flux242@gmail.com" title="flux242 <flux242@gmail.com>"> <span class="fn">flux242</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw edp] Screen Flickering"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91393">bug 91393</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">i915 features</td>
<td>display/Other
</td>
<td>
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw edp] Screen Flickering"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91393#c43">Comment # 43</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [bdw edp] Screen Flickering"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91393">bug 91393</a>
from <span class="vcard"><a class="email" href="mailto:flux242@gmail.com" title="flux242 <flux242@gmail.com>"> <span class="fn">flux242</span></a>
</span></b>
<pre>hi, I'm also experiencing bad flickering of my laptop screen.
I have installed xubuntu 15.10 on Acer C740:
a@chrome:~$ sudo lshw -c video
*-display
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci@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@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</pre>
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