(In reply to Pavel Procopiuc from comment #86) > Created attachment 122363 [details] > dmesg-intel-nightly-patches > > Here it is, it's from drm-intel kernel on commit 9f8709f + 3 patches you > provided. I took a dmesg right after boot (while there was no flickering) > and then did "xset dpms force off", panel turned off, I waited for a couple > of seconds, did some input activity, panel turned on and flicker appeared, I > waited for about 30 seconds and took another dmesg, but there were no > changes between them. Plus I don't see too much debug information in the > dmesg. Am I missing some kernel parameter?
Sorry, I forgot to mention that you need to include the following kernel parameters in order to enable debugging info. So, can you rerun the test with these parameters in place, please drm.debug=0x1e log_buf_len=1M -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
