openSUSE 12.2 on a Samsung R510, almost perfect out of the box
Had the brightness function buttons worked...but the solution is very simple.
Just add acpi_backlight=vendor to the boot loader and the brightness buttons will now work as intended, controlling the backlight.
This will also apply to other Samsung Netbooks/Laptops.
On the subject of openSUSE 12.2, I have to say it is a very nice release.
Everything seems to be working, it is fast and nippy!
The two months of extra stabilisation have really paid off.