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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Intel TearFree feature stops working at random"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109618#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Intel TearFree feature stops working at random"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109618">bug 109618</a>
from <span class="vcard"><a class="email" href="mailto:sultan@kerneltoast.com" title="Sultan Alsawaf <sultan@kerneltoast.com>"> <span class="fn">Sultan Alsawaf</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=143372" name="attach_143372" title="Dmesg with TearFree broken">attachment 143372</a> <a href="attachment.cgi?id=143372&action=edit" title="Dmesg with TearFree broken">[details]</a></span>
Dmesg with TearFree broken
Here's what appeared in dmesg at the time TearFree stopped working:
[ 40.623699] [drm:drm_mode_addfb2 [drm]] [FB:99]
[ 47.605365] [drm:drm_mode_addfb2 [drm]] [FB:102]
[ 59.111051] [drm:drm_mode_addfb2 [drm]] [FB:102]
[ 62.602841] [drm:intel_power_well_disable [i915]] disabling DC off
[ 62.602893] [drm:gen9_dc_off_power_well_disable [i915]] Enabling DC6
[ 62.602942] [drm:gen9_set_dc_state [i915]] Setting DC state from 00 to 02
[ 63.545157] [drm:intel_power_well_enable [i915]] enabling DC off
[ 63.545224] [drm:gen9_set_dc_state [i915]] Setting DC state from 02 to 00
[ 66.937268] [drm:drm_mode_addfb2 [drm]] [FB:98]
[ 78.235814] [drm:drm_mode_addfb2 [drm]] [FB:99]
[ 80.167855] [drm:drm_mode_addfb2 [drm]] [FB:103]
[ 80.186272] [drm:drm_mode_addfb2 [drm]] [FB:105]
[ 80.205084] [drm:drm_mode_addfb2 [drm]] [FB:106]
[ 83.387359] [drm:drm_mode_addfb2 [drm]] [FB:103]
[ 83.405156] [drm:drm_mode_addfb2 [drm]] [FB:105]
[ 83.421814] [drm:drm_mode_addfb2 [drm]] [FB:106]
I've attached the full dmesg. Also, it turns out it is extremely easy to
reproduce this by just toggling full-screen mode on/off on a YouTube video in
Chromium.</pre>
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