[Intel-gfx] 2.6.31 -> 2.6.32 Sound and video regressions
linux at youmustbejoking.demon.co.uk
Sat Dec 5 15:44:55 PST 2009
I demand that Andy Lutomirski may or may not have written...
> Emmanuel Benisty wrote:
>> I just wanted to report 2 regressions I am having now with 2.6.32.
>> Screen is flickering/glitching like crazy in X. It happens whether
>> randomly or when conky is refreshed, when the mouse cursor moves and
>> like hell when a page is loading in the browser. Not so easy to
>> describe this issue.
> That sounds like FIFO underruns, which (I think) were introduced when
> self-refresh was enabled but should have been fixed. I personally have no
> clue how to fix them, but if you told the Intel people what kind of chip
> you have (lspci output), they can probably fix it.
It also sounds like what I'm seeing on my EeePC 901. It only happens after
resume, which makes STR a little less than useful; the display will, sooner
or later, show a single colour (which is, presumably, the result of a display
engine hang, as described in the comment immediately before
intel_calculate_wm) and, seemingly, be stuck like that until power-off or
Whether it *is* the same problem, I couldn't say.
Needless to say, this problem goes away if I disable KMS.
| Darren Salt | linux at youmustbejoking | nr. Ashington, | Doon
| using Debian GNU/Linux | or ds ,demon,co,uk | Northumberland | Army
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