Ok update about my xrandr update this effect is not permanent although lasts for quite a bit. Maybe flicker starts again after display gets powered off (by ACPI) not sure though of exact timing.
Misha -- screen flickers only if text tty entered (radeon) https://bugs.launchpad.net/bugs/175243 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs