Re: Samsung X10 Notebook wrong pixel clock for LCD = wrong screen
Ok, I've been able to isolate the problem to the video support in ACPI. It's enough to disable CONFIG_ACPI_VIDEO in your kernel. I have everything else relevant in ACPI enabled, and there's no need to do "acpi=off" in grub anymore either.
AFAIR, this problem started occurring with 2.6.15 kernels, and 8xxx nvidia drivers.