I'm afraid my case is different (drm:radeon_compute_pll_legacy). Perhaps, it's a matter of forcing a better modeline for the LCD, like here -- https://forums.gentoo.org/viewtopic-t-984216-start-0.html . Although mostly I observed the flickering as horizontal lines/line segments, sometimes the flickering did appear as some regions (with text) displayed at another place on the screen appearing extremely quickly and transparently also at a wrong places at the top.
I can try this if I get again to this machine. This seems to be noticable if there are several complex graphical windows like ownclowd-client (Qt), qupzilla (Qt), Firefox (gtk). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1479136 Title: [ubuntu 14.04.2] Artefacts in radeon driver on kernel 3.16 and upwards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1479136/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
