Scrolling in 6.8.1 much slower than 6.7.0

[Alex Deucher]

On Wed, 8 Dec 2004 23:42:23 +0000, Rob <rbt at mtlb.co.uk> wrote:
> 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?)
> 

this has been fixed in cvs:
https://bugs.freedesktop.org/show_bug.cgi?id=1877

> ----- 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 -----
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