[LAU] 3.10-rt kernels unusable

Hi :) on my machine 3.10.6-rt3 and 3.10.9-rt5 x86_64 don't work properly. Linux 3.10.9 doesn't cause issues. The last kernel-rt I used before the 3.10-rt kernels was 3.8.13-rt14, not used for audio production, but for daily desktop usage without issues. When running 3.10.9-rt5 even a terminal can't be opened anymore. Xfce-terminal and xterm open without a prompt, Ctrl+Alt+F-keys don't work. A shutdown does start delayed and then takes an hour without completely finishing. Does a 3.10-rt kernel work for someone on x86_64 architecture without issues? The mobo is an ASUS M2A-VM HDMI with an AMD Athlon dual-core 2.1 GHz, BE-2350 and 4 GiB RAM. Only tested with Arch Linux, perhaps I should test linux-3.10-rt on Ubuntu Studio too, not done until now, because building takes around two hours. Regards, Ralf