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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - video tearing since update to xf86-video-ati 1:7.8.99.r16.gea30d856-1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102144#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTABUG - video tearing since update to xf86-video-ati 1:7.8.99.r16.gea30d856-1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102144">bug 102144</a>
from <span class="vcard"><a class="email" href="mailto:mister.freeman@laposte.net" title="Barto <mister.freeman@laposte.net>"> <span class="fn">Barto</span></a>
</span></b>
<pre>Ok,
I notice also that DRI 3 is enabled by default in 1:7.9.x :
$ cat bad_case_xorg_log_video-ati-1.7.9.0.txt | grep DRI
[ 12603.610] (II) glamor: EGL version 1.4 (DRI2):
[ 12603.703] (II) RADEON(0): [DRI2] Setup complete
[ 12603.703] (II) RADEON(0): [DRI2] DRI driver: r600
[ 12603.703] (II) RADEON(0): [DRI2] VDPAU driver: r600
[ 12603.704] (==) RADEON(0): DRI3 enabled
[ 12603.823] (II) GLX: Initialized DRI2 GL provider for screen 0
but not in 1:7.8 :
$ cat good_case_xorg_log_video-ati-1.7.8.0.txt | grep DRI
[ 69.914] (II) RADEON(0): [DRI2] Setup complete
[ 69.914] (II) RADEON(0): [DRI2] DRI driver: r600
[ 69.914] (II) RADEON(0): [DRI2] VDPAU driver: r600
[ 69.920] (==) RADEON(0): DRI3 disabled
[ 72.787] (II) GLX: Initialized DRI2 GL provider for screen 0
I think it can explain why I see no tearing with "vsync disabled" in 1:7.8.x
version, with DRI 2 it seems that there is no need to activate vsync,
but with DRI 3 I have to activate vsync in order to avoid tearing</pre>
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