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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes *ERROR* Pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74102#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [ILK/SNB/IVB/HSW Regression]igt/testdisplay causes *ERROR* Pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74102">bug 74102</a>
from <span class="vcard"><a class="email" href="mailto:myfoolishgames@gmail.com" title="dhead666 <myfoolishgames@gmail.com>"> <span class="fn">dhead666</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=111055" name="attach_111055" title="testdisplay on 2955U">attachment 111055</a> <a href="attachment.cgi?id=111055&action=edit" title="testdisplay on 2955U">[details]</a></span>
testdisplay on 2955U
I'm not sure if related but I'm getting the message "*ERROR* uncleared fifo
underrun on pipe A" although not with testdisplay.
for detailed post about my issue see here
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [HSW gt1] GPU HANG: ecode 0:0x87d3bffa on ctx load"
href="show_bug.cgi?id=83677#c151">https://bugs.freedesktop.org/show_bug.cgi?id=83677#c151</a>
I've attached the log output when running testdisplay, first with only the
laptop screen and second with external hdmi screen (motorola lapdock atrix)
please let me know if I should open a new bug report.
system: acer c720, intel 2955U
distro: arch linux, x86_64
kernel: 3.18.0 + 2 patches fixing #83677
(<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [HSW gt1] GPU HANG: ecode 0:0x87d3bffa on ctx load"
href="show_bug.cgi?id=83677">https://bugs.freedesktop.org/show_bug.cgi?id=83677</a>), see last two commits
here: <a href="https://github.com/fritsch/linux/commits/3.18.0">https://github.com/fritsch/linux/commits/3.18.0</a>
xf86-video-intel: 2.99.916
mesa-dri: 10.3.5
xorg-server: 1.16.2</pre>
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