[i945g mesa] Blender 2.49b and 2.50 alpha2 UI rendering artifacts unless textured tiling disabled with driconf

[Petar Velkovski]

The default Intel driver used in Lucid is having some rendering problems in openGL applications. They can be easily noticed if you start Blender 2.49b or Blender 2.50 alpha2 downloaded from the main Blender website.

I've been using Intel 2.9.1 driver from xorg-edgers when it was present there when I was using Karmic and I don't remember having such problems then and there.

[Workaround]
Disable texture tilling (with driconf)

$lsb_release -rd
Description: Ubuntu lucid (development branch)
Release: 10.04

$apt-cache policy xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installed: 2:2.9.1-3ubuntu4
  Candidate: 2:2.9.1-3ubuntu4
  Version table:
 *** 2:2.9.1-3ubuntu4 0
        500 http://ftp.kfki.hu/linux/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xserver-xorg-video-intel 2:2.9.1-3ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
Architecture: i386
Date: Wed Apr 21 13:31:47 2010
DkmsStatus:

MachineType: Shuttle Inc SK45
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-21-generic root=UUID=88416800-8b64-498a-96ab-cbf035390dbd ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-intel
dmi.bios.date: 11/04/2008
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: FM10
dmi.board.vendor: Shuttle Inc
dmi.board.version: V10
dmi.chassis.type: 3
dmi.chassis.vendor: Shuttle Inc
dmi.chassis.version: K
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd11/04/2008:svnShuttleInc:pnSK45:pvrV10:rvnShuttleInc:rnFM10:rvrV10:cvnShuttleInc:ct3:cvrK:
dmi.product.name: SK45
dmi.product.version: V10
dmi.sys.vendor: Shuttle Inc
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-21-generic

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02)
     Subsystem: Holco Enterprise Co, Ltd/Shuttle Computer Device [1297:3140]

[Petar Velkovski (pvelkovski)]

The latest upgrade of mesa packages in Lucid (7.7.1-1ubuntu3) combined with disabling texture tilling (with driconf) fixed this bug for me.

[Juha-Pekka Jokela (jpjokela-spam)]

Considering blender does quite a lot of drawing to front buffer, maybe this has got something to do with https://bugs.launchpad.net/ubuntu/+bug/662574

[Chris Wilson (ickle)]

Can you please retest on the current stack?

[Petar Velkovski (pvelkovski)]

Unfortunately I don't have that computer any more, the motherboard died 3 months after this bug report was created. The new one has a motherbord with GMA X4500, but I'm using it with an external NVidia card.

[Chris Wilson (ickle)]

Fingers crossed that it was actually fixed. I'm pretty sure it must have been as it would have been a major bug.