fglrx mtrr allocation error

[josephdrivein]

The last two ati drivers don't work on my system. I have a ATI X850GTO. Any help is welcome.

As I start Xorg my dmesg shows:

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[fglrx] Maximum main memory to use for locked dma buffers: 1883 MBytes.
[fglrx] module loaded - fglrx 8.30.3 [Oct 26 2006] on minor 0
GSI 26 sharing vector 0x72 and IRQ 26
ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 24 (level, low) -> IRQ 114
mtrr: 0xc8000000,0x8000000 overlaps existing 0xc8000000,0x1000000
[fglrx:firegl_addmap] *ERROR* mtrr allocation failed (-22)
[fglrx] total      GART = 134217728
[fglrx] free       GART = 118226944
[fglrx] max single GART = 118226944
[fglrx] total      LFB  = 126742528
[fglrx] free       LFB  = 116256768
[fglrx] max single LFB  = 116256768
[fglrx] total      Inv  = 134217728
[fglrx] free       Inv  = 134217728
[fglrx] max single Inv  = 134217728
[fglrx] total      TIM  = 0
mtrr: type mismatch for c8700000,1000 old: write-back new: write-combining
mtrr: type mismatch for c8600000,100000 old: write-back new: write-combining
mtrr: type mismatch for c8400000,200000 old: write-back new: write-combining
mtrr: type mismatch for c8000000,400000 old: write-back new: write-combining

I have no 3d acceleration, glxinfo seg faults

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me@localhost ~ $ glxinfo
name of display: :0.0
Segmentation fault

I read about changing the MTRR allocation from continuous to discrete, and I did (the output above is with discrete MTRR alloc), but the problem remains, only the error messages differ slightly.

I use Gentoo on amd64. If any other info is required, please ask, I'll post them.
Thank you

edit: I forgot: as I quit Xorg, the system locks and I have to force a reboot (a hard one..)

[josephdrivein]

I read on a forum about another distro that I should set the mtrr range (whatever that means...) manually, because the kernel gets it wrong. Is it a possible solution?
How do I do that?

[blotto]

Hi I use fglrx with the X700 mobility radeon in my laptop and in the xorg.conf I have thiis line;

Option "mtrr" "off" #disable DRI mtrr mapper, driver has its own code for mtrr

I am sure I also remember reading this in the ati docs somewhere?

[josephdrivein]

I tried it out with all my usual options (that includes the one you specified) and without any. It doesn't change anything.

Anyway, I fixed the mtrr error, I found this on google:
http://www.rage3d.com/board/showthread. ... d=33736241
Doing the 2nd way fixed it, basically you need to add vram at boot.

The mtrr error disappeared but I still get segmentation faults from everything that uses 3d acceleration, and Xorg still hangs on exit. Any Idea?