[Bug 615] Matrix (MGA) 550 dual head does not initialize properly

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https://freedesktop.org/bugzilla/show_bug.cgi?id=615        
   




------- Additional Comments From Manfred.Knick at T-Online.de  2004-10-17 03:58 -------
I am using a G550 and two Eizo F980 / T960 in TvinView configuration under
current linux-2.6.8-gentoo-r10 on a dual-processor-machine.
After the current upgrade to x11-base/xorg-x11_6.8.0-r1, I had similar problems.
Just only replacing the mga_drv.o by the current binary one supplied by Matrox
solved all of them for me.

=============== Code: =====================
cd /usr/X11R6/lib/modules/drivers
mv mga_drv.o mga_drv.o_XORG   # BackUp - just to be safe;
cp -a
<where-you-unpacked-matrox-binary-download>/mgadrivers-3.0/xfree86/4.3.0/drivers/mga_drv.o
.
mv mga_drv.o mga_drv.o_Matrox
ln -s mga_drv.o_Matrox mga_drv.o   # this way, switching back is easy :-)
cll mga*
lrwxrwxrwx  1 root root      16 Oct 16 14:04 mga_drv.o -> mga_drv.o_MATROX
-rwxr-xr-x  1 root root 3605132 Oct 16 14:03 mga_drv.o_MATROX
-rwxr-xr-x  1 root root  200575 Oct 16 13:31 mga_drv.o_XORG
bash-2.05b#
================= end Code ===============================

No need to modify /usr/X11R6/lib/modules/dri/mga_dri.so.
This way, after finding out how, it's done in less than a minute.

ALTERNATIVE:
Replacing mga by the Matrox supplied source code also works (only takes longer).

RESUMMEE: It seems pretty obvious that the real cause is hidden in <...>/mga.

Left as a TODO :
- diff the Matrox source <...>/mgadrivers-3.0-src/4.3.0/drivers/src against
<Xorg>/xc/programs/Xserver/hw/xfree86/drivers/mga

REFERENCES:
http://forums.gentoo.org/viewtopic.php?t=124779 (binary) and
http://forums.gentoo.org/viewtopic.php?t=160980 (from source).
http://forum.matrox.com/mga/viewforum.php?f=51
http://forums.gentoo.org/viewtopic.php?t=1656594
http://bugs.gentoo.org/show_bug.cgi?id=22269.

Kind regards to all of you !
Manfred        
   
   
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