I've been searching the web for quite a long time and didn't find a solution to my problem yet - I hope you can help me out somehow..:
I am running a Samsung M40 WVM1500 notebook with an integrated NVidia Geforce FX Go5200 graphics board. lspci identifies it as: "VGA compatible controller: nVidia Corporation NV34M [GeForce FX Go5200 32M/64M] (rev a1)".
I am currently running Gentoo Linux with kernel 184.108.40.206, the last kernel of the 2.6.11.x series together with 1.0-7667 of the nvidia drivers. Everything works stable and fine using this combination.
Any other kernel >=2.6.12 and any nvidia driver newer than 1.0-7667 makes X hang on boot or - if it initializes X successfully - makes the system freeze when leaving X. I'm left off with a garbled screen or no video at all.
The current version of the nvidia drivers (1.0-8756) together with the newest available kernel (220.127.116.11) won't let me initialize X at all. After 5-10 seconds the lcd displays a fancy plasma-effect, starting from the lower right corner of the screen, then it spreads over the whole display. I've attached a photo showing this effect. The system is already locked up before this effect starts. I can't even access the notebook from another host.
I tried configuring kernels with and without framebuffer, agpgart on/off and played around with the nvagp setting in the xorg.conf.
I up and downgraded the notebook's bios - nothing helped.
The funny thing is: If I attach an external monitor to the notebook, everything works perfectly, X starts up and I can switch back to console as often as I want to.
I suppose I've spent about a week or so trying to figure out what the problem is - I can't find a solution.
Do you have any idea what else I could try out or if I am making a fundamental mistake? Unfortunately I can't post a bug-report because the system always locks up.
Thanks in advance for your help!