This bug was fixed in the package xserver-xorg-video-intel -
2:2.21.14-4ubuntu4
---------------
xserver-xorg-video-intel (2:2.21.14-4ubuntu4) saucy; urgency=low
* XMir: Make a conservative guess as to whether the Mir buffer will be used
for scanout, and take caching decisions appropriately. Fixes "cache dirt"
transient horizontal-line misrendering with Mir bypass (LP: #1218735)
* xmir.patch: Split monolithic concatenated patch out into a quilt patch
series.
-- Christopher James Halse Rogers <[email protected]> Thu, 05 Sep 2013
15:56:49 +1000
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: In Progress => Fix Released
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1218735
Title:
[intel] Bypass mode makes the cursor break up into horizontal line
artefacts
Status in Mir:
Invalid
Status in XMir:
Confirmed
Status in X.org xf86-video-intel:
New
Status in “xorg-server” package in Ubuntu:
Confirmed
Status in “xserver-xorg-video-intel” package in Ubuntu:
Fix Released
Bug description:
Mir's bypass mode makes the X cursor break up into horizontal line
artefacts. I can see some pixels updating where the cursor should be,
but not all of them.
There's a flickering ghost of where the mouse pointer was just a
moment ago, comprised of small horizontal lines.
I've *heard* this is an intel-specific bug due to particular caching
behaviour of intel graphics, triggered by bypass (but only seen when
bypassing XMir surfaces, not other Mir surfaces).
WORKAROUND:
1. sudo -s
2. cd /usr/sbin
3. mv unity-system-compositor unity-system-compositor.bin
4. Now create a new file "unity-system-compositor" with:
---8<---8<---8<---8<---8<---8<---8<---
#!/bin/sh
export MIR_BYPASS=0
exec $0.bin $*
---8<---8<---8<---8<---8<---8<---8<---
5. chmod 755 unity-system-compositor
To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1218735/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
