Currently I'm running the monitor directly attached via HP-HDMI-cable. HDMI-DVI-cables make things worse (also tried cables with gold-plated plugs). Mainboard (most current BIOS) and HDD of the Notebook have been replaced in April, RAM (3GB -> 4GB) at installation of Oneiric (64 bit) in November (I skipped 11.04 for permanent usage because of the video problems).
The Login-Screen is flickering and expanded to four tiles. Lower resolutions work stable for the Desktop, but about every third boot the Desktop is viewable but flickers maybe every 10 - 30 seconds until reboot. After screen lock, the monitor cannot sync anymore and displays "check cable". The KVM-Switch stores the EDID of the monitor permanently (pressing "Numlock - d") and emulates monitor + USB in case K +V+M are switched to another port. I'll run the tests + precise this weekend. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/873718 Title: External monitor via KVM switch flashes all the time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/873718/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs