[mga] Direct Rendering does not work

[Magnus Hagdorn]

I have just updated to Breezy and noticed that direct rendering using a Matrox
g550 with DVI does not work. The current xserver-xorg-driver-mga is 6.8.2-65
which I use together with the mga_hal module
Module mga_hal: vendor="Matrox Graphics Inc. - Release v4.2.0"
        compiled for 6.8.2, module version = 4.2.0

According to the xorg-log DRI is enabled, however running glxinfo with
LIBGL_DEBUG=verbose, I get

libGL: XF86DRIGetClientDriverName: 1.1.1 mga (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/mga_dri.so
drmOpenByBusid: Searching for BusID pci:0000:01:00.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 4, (OK)
drmOpenByBusid: drmOpenMinor returns 4
drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
libGL error:
MGA DRI driver expected DDX version 1-1.2.x but got version 1.1.1
libGL warning: 3D driver returned no fbconfigs.
libGL error: InitDriver failed
libGL error: reverting to (slow) indirect rendering

I will attach the x.org log and my xorg.config files.

[Magnus Hagdorn (magnus-hagdorn)]

Created an attachment (id=3821)
Xorg log

[Magnus Hagdorn (magnus-hagdorn)]

Created an attachment (id=3823)
xorg config

[Daniel Stone (daniels)]

ugh

[Michael R. Head (burner)]

Same on my dad's Matrox G400. Looks like I picked the wrong day to upgrade him
to breezy (he really likes the GLSlideshow and Carousel xscreensaver hacks).

Oh well ;-)

[Michael R. Head (burner)]

Still broken in 6.8.2-71.

Will this require an update to the kernel to fix?

[Daniel Stone (daniels)]

*** Bug 22758 has been marked as a duplicate of this bug. ***

[LGB [Gábor Lénárt] (lgb)]

Still does not work here with 6.8.2-73

[Magnus Hagdorn (magnus-hagdorn)]

works fine now with 6.8.2-74
cheers
magi

[Daniel Stone (daniels)]

i am the bug fixing winner

[Daniel Stone (daniels)]

but not such a winner at remembering to click on 'resolve bug, changing
resolution to fixed'. whoohoo. i rock.

[LGB [Gábor Lénárt] (lgb)]

Well, it's ever worse here now:
lgb@oxygene:~$ glxinfo
name of display: :0.0
Illegal instruction
lgb@oxygene:~$ uname -a
Linux oxygene 2.6.12-9-k7 #1 Mon Oct 10 13:47:52 BST 2005 i686 GNU/Linux
lgb@oxygene:~$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 3
model name : AMD Duron(tm) processor
stepping : 0
cpu MHz : 603.362
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat
pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
bogomips : 1191.93
ii xserver-xorg 6.8.2-75 the X.Org X server (dummy package)
ii xserver-xorg-d 6.8.2-75 X.Org X server -- mga driver

what kind of other information is needed?

Btw, this configuration worked with ubuntu 5.04

[LGB [Gábor Lénárt] (lgb)]

Hello, it seems my problem caused by a certain opcode in /usr/lib/dri/mga_dri.so
which may be unknown for my Duron CPU. I've commited this as a new bugreport
under #17702 . Thanks.