(In reply to thomas bonfort from comment #26) > >what graphical environment you use > KDE plasma > >do you have an external monitor attached? > No > >Is there anything special that triggers the flickering? something like: "it > >starts flickering when having more than one monitor I try to move the cursor > >to the external one" > No special trigger. First happens between 30secs and 5 minutes after boot, > then by salves of ~3-10 flickers separated by a few seconds, followed by a > few minutes with no flickering. Flickers seem to happen essentially when the > machine is more or less idling.
I believe I am having the same problem. I am on XPS 13 9350 too, and now on 4.6-rc3 kernel. And yes the flickers do tend to occur when the machine is kind of idling. My suspicion is that it has something to do with RC6. When I change the i915.enable_rc6 parameter from 7 to 0, the flickering seems to go away. The problem is, of course, disabling RC6 will drain battery a lot faster. PS. I notice that even with i915.enable_rc6=7, the GPU never goes to RC6p and RC6pp. Is that not supported on Skylake yet? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1554613 Title: screen flickering on XPS13 9350 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1554613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
