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<body><span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BYT]Flicker screen shows on VGA output while testing testdisplay -f 38.25,800,832,912,1024,600,603,607,624"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72750">bug 72750</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BYT]Flicker screen shows on VGA output while testing testdisplay -f 38.25,800,832,912,1024,600,603,607,624"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72750#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BYT]Flicker screen shows on VGA output while testing testdisplay -f 38.25,800,832,912,1024,600,603,607,624"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72750">bug 72750</a>
from <span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=72750#c5">comment #5</a>)
<span class="quote">> Is the 800x600 mode the only one that flickers like this?
>
> I presume it works well on other machines, but with the same monitor (just
> to rule out an issue with the screen)?
>
> Video looks like pipe underruns or some other clock instability.</span >
Yes, Only 800x600 mode has this issue, it works well on 1024x768 mode.
We doesn't find this issue on other machines(HSW BDW)
This issue occurs on HDMI output too, plese refer to
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BYT]Flicker screen shows on HDMI output while testing testdisplay -f 38.25,800,832,912,1024,600,603,607,624"
href="show_bug.cgi?id=72751">https://bugs.freedesktop.org/show_bug.cgi?id=72751</a></pre>
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