Epox 8RDA+ & Matrox G550: X freezes after start of glxgears

[t-v]

Hello,

I'm having problems using 3D acceleration with a Matrox G550 on an Epox 8RDA+-mainboard (nForce2 chipset). The system is running on SuSE 8.2 with kernel 2.4.21 and is not overclocked. Without 3D acceleration, everything works fine.

When DRI/GLX is enabled for hardware acceleration, the machine just hangs up after starting glxgears. I get a window with black content. A 'sleep 120; reboot' in a second xterm still lets the box reboot.

The following messages can be found in /var/log/messages:

[...]
Jul 24 20:51:56 luke kernel: Linux agpgart interface v0.99 (c) Jeff Hartmann
Jul 24 20:51:56 luke kernel: agpgart: Maximum main memory to use for agp memory: 941M
Jul 24 20:51:56 luke kernel: agpgart: Detected Nvidia Nforce2 chipset
Jul 24 20:51:56 luke kernel: agpgart: AGP aperture is 32M @ 0xe0000000
Jul 24 20:51:56 luke kernel: [drm] AGP 0.99 on Unknown @ 0xe0000000 32MB
Jul 24 20:51:56 luke kernel: [drm] Initialized mga 3.0.2 20010321 on minor 0
Jul 24 20:51:56 luke kernel: mtrr: base(0xe2000000) is not aligned on a size(0x1800000) boundary
[...]

and in /var/log/XFree86.0.log:

[...]
GetModeLine - scrn: 0 clock: 84990
GetModeLine - hdsp: 1024 hbeg: 1072 hend: 1248 httl: 1416
vdsp: 768 vbeg: 768 vend: 778 vttl: 802 flags: 0
(EE) MGA(0): [dri] Idle timed out, resetting engine...
(EE) MGA(0): [dri] Idle timed out, resetting engine...
(EE) MGA(0): [dri] Idle timed out, resetting engine...
(EE) MGA(0): [dri] Idle timed out, resetting engine...
(EE) MGA(0): [dri] Idle timed out, resetting engine...
(EE) MGA(0): [dri] Idle timed out, resetting engine...
(EE) MGA(0): [dri] Idle timed out, resetting engine...
[etc.]

Any ideas?

Thank you, t-v

PS. More details can be found at http://forum.matrox.com/mgaforum/Forum2/HTML/002332.html

[t-v]

Recently upgraded to Kernel 2.4.22-bk4 and glxgears, tuxracer etc. are working. FYI: I get around 750fps in glxgears.

:-)