@Ivan: There is a slight possibility that the patch could work for you (I don't know because I don't have that hardware). You could test by installing kernel 4.7 from mainline.
The probable cause of the flickering is PLL-resonance which only seems to affect LVDS and only on older GPU-chips. It is mitigated by switching off the fractional divider of the PLL when an LVDS is connected, which is exactly what the patch is doing for chips like RS780/880 (R600) and older. @everyone: The patch is in kernel 4.7 now so there is no need anymore to post your results here. Thank you all very much for what you posted thus far; It turned out to be quite helpful. If the patch is not working for you, you are probably hitting a different bug. Please commit a new bugreport in that case. -- 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
