Mir is showing artifacts on intel graphics/T530 especially in dualscreen mode
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
mir (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
I'm running saucy from an external harddrive. When multimonitor support landed a week ago, I noticed artifacts in dualscreen mode. I updated my installation and checked today, the artifacts are still there.
Systems tested:
Lenovo Thinkpad T530 with Ivy Bridge processor.
HP Probook 6460b with Sandy Bridge processor.
Artifacts seen:
- When moving the mouse, the a mouse trail can be seen. Additionally the cursor is randomly invisible and and the trail artifacts look interlaced and distorted. These artifacts are visible for more than 2 seconds.
- When opening a terminal, the terminal feels unresponsive showing inputs only after a few seconds. Executing apt-get update looks like the output is scrolling back and forth.
These artifacts are not visible with Mir disabled. With Mir in single monitor mode, I haven't noticed above artifacts but when moving windows fast there are few lines showing combing artifacts for a very short time and opening the power cog for the first time shows artifacts too, but the system is usable.
description: | updated |
I couldn't make screenshots showing the artifacts, so I tried making videos. /dl.dropboxuser content. com/u/15877132/ MVI_0254. MOV /dl.dropboxuser content. com/u/15877132/ MVI_0255. MOV
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