Xorg reboot problem is gone after updating BIOS to latest version (08LI). Unfortunately, that required installing Windows just to launch executable file of BIOS updater that Samsung provides :( Still, I'm on 4GB RAM right now and everything works fine... except of Fn key for brightness control etc, but there's already bug 297962 for that.
-- Karmic 64-bit doesn't boot on Samsung R510 with 4GB RAM https://bugs.launchpad.net/bugs/354824 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs