Some experiments later, I found out that the freezes are triggered by cpufreq switches. As long as the ondemand governor is active, it freezes on every frequency switch. When I lock the CPU frequency e.g. to 2.80 GHz, I can work fine without any freezes, and XRandR works again.
-- display freezes for a fews seconds again and again https://bugs.launchpad.net/bugs/263205 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
