Scrolling in 6.8.1 much slower than 6.7.0

[Egbert Eich]

This problem should be fixed in CVS now.
Check out #1877 on bugs.freedesktop.org.

Egbert.


Rob writes:
 > Second try, didn't realise this list was subscription only. But while getting
 > my message rejected, I discovered that turning ShadowFB on brought scrolling
 > back to 6.7.0 speeds. I'd rather not use ShadowFB though, since it's slower
 > and uses more memory (right?)
 > 
 > ----- Original message -----
 > 
 > Hi all,
 > 
 > I've just built 6.8.1 on my old laptop, and I notice that scrolling windows
 > is a lot slower in the new version. It's most obvious in abiword, but I see
 > it in Firefox and other programs as well. With 6.8.1 I can see the window
 > being redrawn from bottom to top or vice versa, as if it's not accelerated.
 > To really see the difference, use abiword 2.0.x and turn smooth scrolling
 > on - with 6.7.0 on this hardware it's a bit uncomfortable, but with 6.8.1
 > it's truly glacial.
 > 
 > Relevant specs:
 > 
 > 300MHz mobile P-II
 > 2MB PCI Neomagic nm2160 (using neomagic driver, running at 1024x768x16bpp)
 > 192MB RAM
 > Linux kernel 2.6.9-mm1
 > GCC 3.4.3
 > External Freetype 2.1.9 and Fontconfig 2.2.96
 > 
 > I rebuilt 6.7.0 to check after I noticed this, so the compiler etc. is the
 > same. I'm not using the composite extension, and MTRRs look like they're set
 > up properly in both cases. I'm using the same xorg.conf for both (except for
 > the keyboard driver change).
 > 
 > Is this a known issue, or is there something I can try to narrow this down?
 > 
 > Also, with 6.8.1 I get a few errors like
 > "No matching visual for __GLcontextMode with visual class = 3 (32772), nplanes = 16"
 > on startup. Are these harmless or not, and where are they coming from?
 > 
 > TIA
 > 
 > ----- End message -----
 > _______________________________________________
 > xorg mailing list
 > xorg at lists.freedesktop.org
 > http://lists.freedesktop.org/mailman/listinfo/xorg