Arch Linux

guyawry

Member

Registered: 2009-08-17

Posts: 2

[solved]X won't start, mtrr problem?

Just built a new system ( core i7, asus p6t se, radeon hd 4850 512mb, 6gb ddr3 ), installed arch, and now X won't start. It gives me:

error setting MTRR (base = 0xd0000000, size = 0x10000000, type = 1) Invalid argument (22)

So after looking into MTRRs I'm still not quite sure how they are supposed to look, but I'm going to guess not like mine:

reg00: base=0x1c0000000 ( 7168MB), size= 1024MB, count=1: uncachable
reg01: base=0x000000000 (    0MB), size= 8192MB, count=1: write-back
reg02: base=0x0c0000000 ( 3072MB), size= 1024MB, count=1: uncachable
reg03: base=0x0bf800000 ( 3064MB), size=    8MB, count=1: uncachable

Which from what I think I know means that arch thinks I have over 8gb of ram. What would be the correct MTRR setting? Also, I'm using arch 32bit (for now) with the xf86-video-ati drivers.

Edit: Hah! There wasn't anything wrong with the MTRR, I just didn't configure X properly . I still get those errors but there doesn't seem to be anything wrong now. Thanks for the help everyone.

Last edited by guyawry (2009-08-18 03:55:45)

mjheagle8

Member

From: /home/mjheagle8

Registered: 2009-07-12

Posts: 186

Re: [solved]X won't start, mtrr problem?

definitely use 64 bit, you're wasting a lot of resources.

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guyawry

Member

Registered: 2009-08-17

Posts: 2

Re: [solved]X won't start, mtrr problem?

definitely use 64 bit, you're wasting a lot of resources.

Ok so I installed arch64, still the same problem.

I could probably fix this myself if the MTRR wasn't so confusing. Searched everywhere and I still can't figure out what you base each individual memory range on. The system has 6GB with a 512MB video card, so would there be two entries for each? Or would there be four entries, due to 3 sticks of 2GB and the video card?

Ranguvar

Member

Registered: 2008-08-12

Posts: 2,549

Re: [solved]X won't start, mtrr problem?

Try with the 'vesa' driver (you should have xf86-video-vesa installed). Also, please post your entire /var/log/Xorg.0.log

broch

Banned

From: L.A. California

Registered: 2006-11-13

Posts: 975

Re: [solved]X won't start, mtrr problem?

1) pull out 4GB RAM and leave only two
or
2) append mem=2048 to your kernel

If this will help disable memory remap in BIOS (if you have this option available)

nvidia supposedly fixed this.

Last edited by broch (2009-08-18 02:20:28)