This bug was fixed in the package mir - 0.0.11+13.10.20130924.1-0ubuntu1
---------------
mir (0.0.11+13.10.20130924.1-0ubuntu1) saucy; urgency=low
[ kg ]
* bump version for ABI break (LP: #1229212)
[ Robert Ancell ]
* Allow an application to override the options being populated.
* Pass the program options to parse_options().
* Add missing include for std::cerr.
* Report when paused and resumed via configuration. (LP: #1192843)
* Add missing directory separator when searching for a config file to
parse.
[ Kevin Gunn ]
* change test timeouts and fix fence.
[ Alexandros Frantzis ]
* examples: Only check key information for key events This fixes a
memory error reported by valgrind for examples that use eglapp.
* shell: Apply the base configuration on a hardware change only if no
per-session configuration is active.
* graphics: consolidated fixed for nested code and examples on android
stack.
[ Eleni Maria Stea ]
* graphics: Pull in Eleni's changes to get the DRM fd to init GBM from
the host Mir instance.
[ Didier Roche ]
* remove (unused in the ppa as we have libmirserver3) hack to force
depending and building against the exact same version.
[ Robert Carr ]
* Add DPMS configuration API. (LP: #1193222)
* Deduplicate mtd::NullDisplayConfig and
mtd::NullDisplayConfiguration.
* Fix multiple internal client surfaces on android. (LP: #1228144)
* change test timeouts and fix fence.
* Add DPMS API and GBM/android impls.
[ Kevin DuBois ]
* platform, graphics: support nested (mir-on-mir) rendering on the
Android platform.
[ Michael Terry ]
* Change how Mir chooses socket locations to make it simpler for a
nested-Mir world, by using MIR_SOCKET as the host socket if no other
host socket is provided and passing MIR_SOCKET on to any children.
Also, change --nested-mode to --host-socket for clarity and add --
standalone to force standalone mode.
[ Daniel d'Andrada ]
* android-input housekeeping - Updated README - Removed some dead
code.
[ Daniel van Vugt ]
* Add DPMS configuration API. (LP: #1193222)
* Add a "flags" field to MirBufferPackage so that clients can find out
if the buffer they've been given is scanout-capable. This is
normally something a client should never need to know. However there
are two specialized cases where it's required to fix bugs in the
intel and radeon X drivers: LP: #1218735, LP: #1218815 The intel
fix (already landed) contains a hack which will be updated after
this branch lands. (LP: #1218815, #1218735)
* GBM: Ensure that we don't create scanout buffers if bypass is
explicitly disabled from the environment. (LP: #1227133) . (LP:
#1227133)
[ Alan Griffiths ]
* graphics: Pull in Eleni's changes to get the DRM fd to init GBM from
the host Mir instance.
* input: Separate the code for dispatching input from that reading it.
* graphics: Hook up nested surfaces events to input.
* input: Connect nested input relay to input dispatch.
* graphics: Simplify NativeAndroidPlatform out of existence.
* tests: Fixes to get the tests "passing" on android/arm stack. (LP:
#1226284)
* graphics: consolidated fixed for nested code and examples on android
stack.
* examples: add command-line options to examples so the Mir server
connection can be selected.
* change test timeouts and fix fence.
* client: Add client side support for connecting via an existing FD.
[ Łukasz 'sil2100' Zemczak ]
* Revert revision 1054 ABI-change (the libmirclient3 one), which seems
to cause a lot of problems.
[ Ubuntu daily release ]
* Automatic snapshot from revision 1081
-- Ubuntu daily release <[email protected]> Tue, 24 Sep 2013
06:04:59 +0000
** Changed in: mir (Ubuntu)
Status: Invalid => Fix Released
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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:
Invalid
Status in X.org xf86-video-intel:
New
Status in “mir” package in Ubuntu:
Fix Released
Status in “xorg-server” package in Ubuntu:
Invalid
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
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