[Bug 18399] Bitmap-font glyph corruption in Gnome-terminal [EXA enabled]

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=18399





--- Comment #3 from Michel Dänzer <michel at tungstengraphics.com>  2008-11-06 03:27:30 PST ---
(In reply to comment #2)
> Disabling accelerated download-from-screen resolves the corruption issues with
> bitmap fonts (or non-anti-aliased fonts) in Gnome-terminal.

So it looks like at least some of the issues you reported boil down to AccelDFS
being broken on your setup.

Can you try if the radeon kernel module built from
git://anongit.freedesktop.org/git/mesa/drm fixes the AccelDFS issues?

> However, it slows down immensely without this kind of acceleration. Scrolling
> in Gnome-terminal is unbearable, maximizing/minimizing is very slow (probably
> because this triggers huge redraw-operation).
> 
> I prefer it faster with slight corruption ;). Also, notice that when I use a
> regular anti-aliased font (like Ubuntu's default Monospace), then the
> corruption _never_ occurs, even with accelerated DFS.

This is because anti-aliased font rendering is accelerated whereas aliased font
rendering is not (which BTW is fixed in current upstream xserver Git).


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