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Bug#606939: [squeeze -> 2.6.36 regression] holes in characters rendered on screen in X

On 26/01/12 00:05, Jonathan Nieder wrote:

John Hughes wrote:

Since installing linux-image-2.6.36-trunk-686 in order to "fix" bug 590251
I'm seeing minor "glitches" in font rendering (seen in gnome-terminal and

The glitches take the form of holes in random characters.  Once a character
is displayed with a hole then the same character (same font, same size) will
always be displayed with the same hole.  For example as I type this bug
report the top of the uppercase "C" is missing.

I don't know if this is a kernel or X bug.
Sorry for the slow reply.  Can you reproduce this with a 3.x.y kernel?
If so, can you take a screenshot so we can see what the corrupted
glyphs look like?
Ok, will do this weekend - currently I'm on 3.3-rc something. Problem still exists.

(Probably something to do with suspend/resume - It only seems to happen after at least one suspend/resume cycle).

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