I've collected the reports from people commenting on bugs 138256 and 150109: https://wiki.ubuntu.com/X/Bugs/ScreenModeChange
I think there's more than two bugs represented here, but in many cases we don't have enough data. Please look at the above page and fill in the missing data. I've also created a page summarizing how to analyze and work around these issues. It would be worthwhile for anyone experiencing these issues to review and try these steps, and then report their findings on the appropriate bug https://wiki.ubuntu.com/X/Debugging#head- 0b6e9c6b60fa07cda4013a1c51239f1c14c4f89d -- Resume from suspend leads to blank screen with i810 driver on Samsung X20 (Intel GM915 Chipset) https://bugs.launchpad.net/bugs/153329 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