How about:
diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
index cc1778a..0a59681 100644
--- a/src/sna/gen4_render.c
+++ b/src/sna/gen4_render.c
@@ -1895,6 +1895,9 @@ gen4_render_composite(struct sna *sna,
tmp->has_component_alpha = false;
tmp->need_magic_ca_pass = false;
+ if (!mask)
+ mask = sna->render.white_picture;
+
if (mask) {
if (mask->componentAlpha && PICT_FORMAT_RGB(mask->format)) {
tmp->has_component_alpha = true;
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1098334
Title:
Font corruption in Chromium tab bar using Intel SNA
Status in X.org xf86-video-intel:
Confirmed
Status in “xserver-xorg-video-intel” package in Ubuntu:
Fix Released
Bug description:
After enabling the SNA acceleration method and rebooting, I noticed
that graphical glitches appeared in the letters on Chromium's tab bar
during the mouse hover animation. I've attached a screenshot
illustrating this, particularly with the letter "g" in the screenshot.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.7.0-7.15-generic 3.7.0
Uname: Linux 3.7.0-7-generic x86_64
ApportVersion: 2.8-0ubuntu1
Architecture: amd64
Date: Thu Jan 10 16:00:55 2013
InstallationDate: Installed on 2012-09-24 (107 days ago)
InstallationMedia: Kubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120822.2)
MarkForUpload: True
SourcePackage: xorg
UpgradeStatus: Upgraded to raring on 2012-09-25 (107 days ago)
To manage notifications about this bug go to:
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1098334/+subscriptions
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