FC4: matrox MGA video driver corrupting display

[Dario Lesca]

Hi, the FC4 Setup in graphical mode on this machine:

[root at ghim ~]# cat /proc/cpuinfo | egrep '(vendor_id|model|cpu MHz)'
vendor_id       : GenuineIntel
model           : 2
model name      : Intel(R) Pentium(R) 4 CPU 2.00GHz
cpu MHz         : 2000.572
[root at ghim ~]# lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8753 [P4X266 AGP] (rev 01)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
00:09.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
(rev 24)
00:0b.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 02)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233A ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:11.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 23)
00:11.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 23)
01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G550 AGP
(rev 01)
[root at ghim ~]#

Does Not work.

I must reboot the system 4 or 5 times without turning off the PC just to
see a clear graphic interface.
The "linux nofb" option passed on boot sequence does not solve the
problem. 

As soon as the setup process is finished I reboot the system and there's
a bad X graphic interface, so the o.s. is unusable.

After 4 or 6 reboots the graphic interface is loaded correctly and the
system work great.

I have found on bugzilla for FC4test[23] this Bug:
 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=153729
 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=157556

Is this a known error for FC4 ?
there is a bypass or a solution?

Many thanks.

-- 
Dario Lesca <d.lesca at solinos.it>