[i945] Slow rendering opengl and CPU 100% (intel gma945)

[Pavel Studeník]

Binary package hint: xserver-xorg-video-intel

Today i upgrade my system. I use ubuntu 10.4 (lucid) with efects (compiz). Before upgrade, graphic worked perfect (glxgears was about 5000fps) . But now, 3D rendering is slow (glxgears 2000fps). And when i move window, that cpu go up to 100% and motion of windows is jerky. I tried driver intel, but problem is same. Deleting xorg.conf was same, too.

---
Architecture: i386
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: Acer Aspire 3690
Package: xserver-xorg-video-intel 2:2.9.1-3ubuntu4
PackageArchitecture: i386
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=b9dd03e5-9b2b-4295-a43e-66f83e9306b9 ro quiet splash
ProcEnviron:
 PATH=(custom, no user)
 LANG=cs_CZ.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Tags: lucid lucid
Uname: Linux 2.6.32-21-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/09/2006
dmi.bios.vendor: Acer
dmi.bios.version: V3.23
dmi.board.name: Grapevine
dmi.board.vendor: Acer
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrV3.23:bd12/09/2006:svnAcer:pnAspire3690:pvrV3.23:rvnAcer:rnGrapevine:rvrN/A:cvnAcer:ct10:cvrN/A:
dmi.product.name: Aspire 3690
dmi.product.version: V3.23
dmi.sys.vendor: Acer
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-21-generic

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)
     Subsystem: Acer Incorporated [ALI] Device [1025:0090]

[Bryce Harrington (bryce)]

Hi Pavel,

Please run the command 'apport-collect BUGNUMBER', which will attach several files we need for debugging.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Pavel Studeník (junior-pavelstudenik)]

apport information

[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

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[Pavel Studeník (junior-pavelstudenik)]

apport information

[sancelot (sancelot)]

I noticed that to have 3D accelerated, you had to add monitor section for each output
try modifying xorg.conf as follow :

in the device section add :

Option "monitor-VGA1" "vga"

Option "monitor-LVDS1" "lvds"

EndSection section add :

and 2 monitor sections :

Section "Monitor"
 Identifier "vga"

EndSection

Section "Monitor"
 Identifier "lvds"
Option "Ignore" "true"

EndSection

[sancelot (sancelot)]

more details here http://intellinuxgraphics.org/dualhead.html

but looks like 3D is active only when one section is enabled.

[Tormod Volden (tormodvolden)]

This bug is about an intel card, so closing the -ati task.

[Daniel van Vugt (vanvugt)]

Pavel, please let us know if this bug is still affecting you, even if you have upgraded.

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original bug reporter. However, if the issue still exists in the latest development version of Ubuntu and you are the original reporter please feel free to reopen with the requested information. If you are not the original reporter, please don't reopen this one but instead file a new bug and reference this one.