ubuntu-x-swat team mailing list archive

[Pasquale <pasquale.galianni@xxxxxxxxx>]

Public bug reported:

Dear Friends,

I have an intel 855GM graphics card with the last 2.7.1 drivers. 
Maple 10 and Mathematica 7 3D-plots are in practice unusable/invisible.
I've tried with several xorg.conf configurations, i.e exa/uxa with/without 
tiling, with different migration heuristics and even with different drivers versions (2.6 and 2.7) 
but the problem persist. I think it's due (again) to this damned graphic drivers,
because the problem does not show up on Nvidia/ati cards. I would say to 
Brice Harrington that the problems with the intel graphics drivers are still 
far to be solved completely. Even if with the new driver 2.7.1 3D performances
are acceptable, 2D is still very slow. Just compare Gimp's or Firefox's 
performances on XP and on Ubuntu, the differences are visible at eye.
Its sad to see native Linux applications running faster on Windows!!
That's what people will think:

"Linux: You can't even plot a 3D graph."

Cheers,

Pasquale

Here some useful output:

Lspci:
00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
	Subsystem: Benq Corporation Device 5002
	Flags: fast devsel
	Memory at 60000000 (32-bit, prefetchable) [disabled] [size=128M]
	Memory at 68000000 (32-bit, non-prefetchable) [disabled] [size=512K]
	Capabilities: <access denied>

xorg.conf:
Section "Device"
	Identifier	"Configured Video Device"
	Option	"AccelMethod"			"exa"
	Option	"MigrationHeuristic"		"greedy"
	Option  	"Tiling"			        "true"
EndSection

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Mathematica 7 and Maple 10 3D plots unusable and general performance issue
https://bugs.launchpad.net/bugs/398295
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