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<body><span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] Screen stop at certain frame when running Synmark2 cases while FPS is updating"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84958">bug 84958</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>eero.t.tamminen@intel.com
</td>
</tr>
<tr>
<td style="text-align:right;">Component</td>
<td>Drivers/DRI/i965
</td>
<td>Driver/intel
</td>
</tr>
<tr>
<td style="text-align:right;">Version</td>
<td>unspecified
</td>
<td>git
</td>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>idr@freedesktop.org
</td>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<td style="text-align:right;">Product</td>
<td>Mesa
</td>
<td>xorg
</td>
</tr>
<tr>
<td style="text-align:right;">QA Contact</td>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] Screen stop at certain frame when running Synmark2 cases while FPS is updating"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84958#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] Screen stop at certain frame when running Synmark2 cases while FPS is updating"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84958">bug 84958</a>
from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
<pre>Issue is not visible with latest kernel & Mesa on top of Ubuntu 14.04 X server
(1.15.1) and X video driver (2.99.910), but updating X server and X video
driver makes it visible (or having latest X & X intel video driver with old
Mesa & kernel).
-> seems like X issue, moving.
It's BDW specific and has been there at least from Spring.
The issue is that although tests render correctly and report fine FPS numbers,
those rendered frames aren't shown on screen. If SynMark2 validates the window
content (reads & compares it against correct version), that frame shows on
display just fine. I.e. one cannot use test-automation to detect the issue, it
needs to be verified from screen externally/manually.
Only the first (= validated/read) frame in test is visible after context
creation. Tests themselves haven't stopped as they report good FPS values when
test completes. In SynMark context re-creation test one can see several
frames, but that test re-creates the context on every frame.
In which tests this happens, can change after reboot, and when 3D stack is
updated, so it could be (context creation?) timing related.
Wendy, didn't you see this also in some other test than SynMark (Lightmark
2008?).</pre>
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