Messages in this thread | | | Date | Tue, 13 Oct 2009 15:00:55 -0400 | From | Theodore Tso <> | Subject | Re: 2.6.32 regression (bisected): Video tearing/glitching with T400 laptops |
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Thanks, should I apply this on top of your previous patch, or on a completely virgin 2.6.32-rc3 tree?
I don't know if this helps, but the amount of tearing seems to be roughly proportional to how many "white" pixels are on the screen. There isn't much tearing if I just have my (brown) Ubuntu 9.04 default background image. There is a bit more tearing on the virtual desktop once I open an 80x52 black-on-white gnome-terminal window, so that 45% of my widescreen has white pixels due to the backgrouin of the gnome-terminal.
On the virtual desktop where my firefox browser is opened, the tearing/glitching is much more frequent. And where the tearing/glitching is seems to be be roughly related to where the mouse cursor happens to be. (Usually starting at the horizontol row of pixels where the mouse is going down towards the bottom of the screen; although sometimes if the mouse is very close to the bottom of the screen, there is some tearing at the top of the screen as well.)
Does this description help at all? Would a video clip of the tearing/glitching be useful?
- Ted
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