Bug 19876 - 3D acceleration not working on i945GM
Summary: 3D acceleration not working on i945GM
Status: RESOLVED WORKSFORME
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i915 (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Eric Anholt
QA Contact:
URL:
Whiteboard:
Keywords: NEEDINFO
Depends on:
Blocks:
 
Reported: 2009-02-01 08:54 UTC by Bernhard Rosenkraenzer
Modified: 2010-03-08 16:25 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments
Xorg log file (23.19 KB, text/plain)
2009-08-06 12:59 UTC, Gaetan QUENTIN
Details
dmesg (35.75 KB, text/plain)
2009-08-06 12:59 UTC, Gaetan QUENTIN
Details

Description Bernhard Rosenkraenzer 2009-02-01 08:54:16 UTC
Using the current infrastructure (kernel 2.6.29-rc3, xorg-server 1.5.99.902, xf86-video-intel 2.6.1, mesa head from a few days ago), 3D acceleration doesn't work at all on an i945GM - e.g. starting tuxracer draws just its light blue background screen.

An identical installation works perfectly with a Q35.
Comment 1 Bernhard Rosenkraenzer 2009-02-11 08:29:30 UTC
Problem still present in 2.6.29-rc4 with latest patches from drm-intel-next applied.

This is on an Acer Aspire One (8086:27ae - 1025:015b); there is no indication of anything going wrong in dmesg or in the output of the application even with LIBGL_DEBUG=verbose

I'm starting to suspect the DRI driver is drawing on the VGA port or something else that happens to be not in use.
Comment 2 Eric Anholt 2009-02-18 12:58:23 UTC
All the usual information is required (dmesg, Xorg.0.log).

When did it start happening?  Can you bisect?
Comment 3 Gaetan QUENTIN 2009-08-06 12:59:03 UTC
Created attachment 28407 [details]
Xorg log file

Xorg log file
Comment 4 Gaetan QUENTIN 2009-08-06 12:59:44 UTC
Created attachment 28408 [details]
dmesg

dmesg log file
Comment 5 Gaetan QUENTIN 2009-08-06 13:04:48 UTC
On eeebox b202: atom n270 + 945GME,
 using ubuntu 9.04 with kernel 2.6.30.1


 using lastest intel drivers (2009 Q2)

 2D looks good performance

3D is catastrophic!

128 frames/secondes in glxgears against 284 before
unable to use real 3D application, like Google Earth

What is the problem?

Regards,

Comment 6 Gaetan QUENTIN 2009-08-06 13:40:38 UTC
(In reply to comment #5)
> On eeebox b202: atom n270 + 945GME,
>  using ubuntu 9.04 with kernel 2.6.30.1
> 
> 
>  using lastest intel drivers (2009 Q2)
> 
>  2D looks good performance
> 
> 3D is catastrophic!
> 
> 128 frames/secondes in glxgears against 284 before
> unable to use real 3D application, like Google Earth
> 
> What is the problem?
> 
> Regards,
> 

I was wrong: 2D is worse too....slower
Comment 7 Eric Anholt 2009-08-11 12:57:24 UTC
Are you using Mesa 7.5?
Comment 8 Gaetan QUENTIN 2009-08-12 01:30:36 UTC
(In reply to comment #7)
> Are you using Mesa 7.5?
> 

Yes 7.5,  compiled with make argument "linux-dri-x86", something like that.

By the way, all CGLAGS and CXXFLAGS are ignored, since the makefile oblige us to make a "make realclean", deleting user config options created by configure script.

Is there a way to compile with user CFLAGS option? Like "-march=..."?

FYI, i use the 1900*1080 mode, and xvmc option in xorg.conf is enabled.


Regards,
Comment 9 Adam Jackson 2009-08-24 12:31:46 UTC
Mass version move, cvs -> git
Comment 10 Eric Anholt 2009-12-29 10:11:58 UTC
given that this isn't the behavior we see on 945GM systems, I'll leave this as NEEDINFO until we can get a bisect or other clue as to what makes your system special.

If the CPU is busy when you have slow rendering, then sysprof would be a tool to use.
Comment 11 Eric Anholt 2010-03-08 16:25:23 UTC
Feedback timeout from original submitter.


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