ATI Radeon x1200 Graphics Problem - Mint 9

[aroundi]

Hello,

I recently upgraded from Mint 7 to Mint 9. A liveUSB came up right away with no apparent problems. I remember installing Mint 7 was a lot of work / trial and error to get graphics and wifi working. I still had some minor problems, such as GLX Gears image being always on top and occasional random wifi drops. Mint 9 cleared these problems. So I was happy to install.

However, I now have a major graphics problem where everything is running fine then suddenly my screen goes to major blocks of static, the fonts can go to unreadable, the cursor goes to a large block. The system becomes unusable. I can get the problem to happen most easily by opening FireFox, grabbing the vertical scroll bar and moving it. I may get away with no problem for several minutes, but the problem eventually happens.

I've reinstalled several times (both 32bit and 64bit) and can also reproduce from the LiveUSB. I remember from Mint 7 that, with forum help, I think I fixed graphics by tweaking xorg.conf (I can't find the posts though). From searching it looks like I could try some KMS related boot options, but I'm not sure how or what to configure. Also, it looks like I could create or enable an xorg.conf file but I'm not sure how to do this, or if I should.

If anyone could help me I would be most grateful. I'm kind of stuck here; going back to LM7 would mean redoing all the trial and error that I don't have documented (ick).


Here are some specs. Let me know if more info is needed.

Gateway LT3103u – AMD L110 processor 64bit 2G ram Netbook single boot to LM9 with separate home partition.

From lspci -vvnn:
01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS690M [Radeon X1200 Series] [1002:791f]

Subsystem: Acer Incorporated [ALI] Device [1025:028c]

Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+

Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

Latency: 64, Cache Line Size: 32 bytes

Interrupt: pin A routed to IRQ 27

Region 0: Memory at d0000000 (64-bit, prefetchable)

Region 2: Memory at f0100000 (64-bit, non-prefetchable)

Region 4: I/O ports at 9000

Region 5: Memory at f0000000 (32-bit, non-prefetchable)

Capabilities: <access denied>

Kernel driver in use: radeon

Kernel modules: radeon

[aroundi]

I've managed to install an xorg.conf file and hope to try some tweaking to solve this problem. Any suggestions?

Tx in advance

[oobetimer]

I've managed to install an xorg.conf file and hope to try some tweaking to solve this problem. Any suggestions?

Tx in advance

http://linux.fi/wiki/X.orgin_asetukset

http://translate.google.fi/translate?js ... l=fi&tl=en

http://wiki.ubuntu-fi.org/xorg_conf

http://translate.google.fi/translate?js ... l=fi&tl=en