[Fwd: DRI and OpenGL problem with GM965]

Svetlana Atanasova svetlana at netissat.bg
Tue Oct 2 10:21:30 PDT 2007

Hello again,

    I have found in google topic for similar problem but with nvidia drivers

It's a problem with memory allocation

My strace glxinfo returns the following error:

mmap2(NULL, 6553600, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0xd0000) = -1 
EINVAL (Invalid argument)
fstat64(4, {st_mode=S_IFCHR|0666, st_rdev=makedev(226, 0), ...}) = 0
fstat64(4, {st_mode=S_IFCHR|0666, st_rdev=makedev(226, 0), ...}) = 0
close(4)                                = 0
write(2, "libGL error: drmMap of framebuff"..., 61libGL error: drmMap of 
framebuffer failed (Invalid argument)
) = 61
write(2, "libGL error: reverting to (slow)"..., 52libGL error: reverting 
to (slow) indirect rendering
) = 52

I have found this patch for nvidia:

I want to adapt this patch for intel to resolve at last this memory 
conflict issue.
I can find similar memory allocations in i810_dri.c and i830_dri.c

Please help which file I have to change to move FB allocated memory.

-------- Original Message --------
Subject: 	DRI and OpenGL problem with GM965
Date: 	Thu, 27 Sep 2007 21:11:10 +0300
From: 	Svetlana Atanasova <svetlana at netissat.bg>
To: 	xorg at lists.freedesktop.org


   sorry if this is previously discussed but I'm quite new to this list.
I have HP 6710s laptop with slackware 12.0 (kernel, xserver 
1.3.0- slack 12 default)  and I have troubles with
glx. With slackware 12.0 default driver - xf86-video-intel-2.0.0 there 
is DRI but colors
looks terrible - there are visible lines on color gradient patterns. 
With driver provided
in slackware distribution in directory /patches - 
xf86-video-intel-2.1.0  colors OK, DRI working, but when I test with GL
screensaver  X server lockups with something for insufficient free 
memory to allocate in logs I don't have these logs now.
I've downloaded the latest intel drivers from 
http://www.intellinuxgraphics.org and after compiling them I don't have DRI
I got the following error in logs:
(EE) AIGLX error: drmMap of framebuffer failed (Invalid argument)(EE) 
AIGLX: reverting to software rendering

and the following warnings (if it's helpful):

(WW) intel(0): Removed DRI frontbuffer mapping in compatibility mode.
(WW) intel(0): DRIGetDeviceInfo will report incorrect frontbuffer handle.

So I can't get my videocard working properly with any drivers, please 
help whith any ideas or patches, etc.
Thanks in advance!

Best Regards,

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