At 1680x1050 everything works fine, but at monitor-native FullHD-resolution (1920x1200) the HP LP2475w flickers. And there's no difference between direct HDMI-HDMI connection and KVM-Switch. The dmesg of Oneiric is attached, see 17:45 to 17:47 where I switched from 1680x1050 to 1920x1200 and back.
I tried Precise with no difference.
At 1680x1050 everything works fine, but at monitor-native FullHD-resolution (1920x1200) the HP LP2475w flickers. And there's no difference between direct HDMI-HDMI connection and KVM-Switch. The dmesg of Oneiric is attached, see 17:45 to 17:47 where I switched from 1680x1050 to 1920x1200 and back.