Clean 13.04 install, same problem, the workaround from @Batuhan helps me also. (XPS 13 HD Sputnik, 3.8.0.25-generic BIOS A08)
Clean 13.04 install, same problem, the workaround from @Batuhan helps me also. (XPS 13 HD Sputnik, 3.8.0.25-generic BIOS A08)