Same on my XPS-13 9343 with i7-5500U and identical graphics card. I tried xorg-edgers, but no improvement (xorg-video-intel is version 2.99.917 there), it shows the same behaviour. Workaround with UXA is possible, but performance is abysmal, so no real solution.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1437807 Title: Suspend/resume fails with SNA acceleration on some WMs Status in xserver-xorg-video-intel package in Ubuntu: New Bug description: I've installed Ubuntu 15.04 on a new Dell XPS-13 9343 (the 2015 model). It has a i7-5600U CPU and an Intel HD 5500 integrated graphics card. On Unity, suspend/resume appears to work fine. However, with the i3 window manager, it resumes to severe graphics corruption and all text gone from terminals (which also become unresponsive). I can kill i3 using my normal quit key combination, which takes me to an unresponsive and blank purple lightdm login. There are no log messages out of the ordinary. The same issue appears if I use Fluxbox or another "lightweight" WM, but not if I use Unity or GNOME. If I configure X.org to use UXA acceleration rather than SNA, however, suspend/resume works fine on the affected WMs. (This is why I believe the X server for Intel cards is the culprit). To reproduce: On an XPS-13 (and probably other HD 5500-based machines), start an i3 session and run `pm-suspend`. Resuming the machine should produce the error. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1437807/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
