The original bug description is a bit vague here. In comment #3 I was aiming to make this bug very definite. If you add INTEL_DEBUG=perf then you will see the errors I mentioned. I think this bug should be about those errors in comment #3 since the bug description is a bit too vague.
Please add INTEL_DEBUG=perf to your /etc/environment to help us determine if you are experiencing this bug or something different. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1580792 Title: Unity8 on Intel Atoms performs poorly (falls back to software rendering more than non-Atoms do) Status in Canonical System Image: New Status in unity8 package in Ubuntu: Confirmed Bug description: (problem forked from bug 1549455) Unity8 on Intel Pineview performs very poorly. Frame times appears to be up to 900ms, Qt's renderer thread using 100% CPU. Running unity8 with MESA_DEBUG=1 EGL_LOG_LEVEL=debug reveals a few MESA errors: http://paste.ubuntu.com/16344427/ Quoting @vanvugt "Those Mesa errors "Mesa: User error:" all look like OpenGL features that Unity8 is hitting but mir-demos don't. So those gl calls are also good candidates for explaining poor performance, especially if Mesa is falling back to software rendering for them." Since Qt tends to perform just fine on that hardware in X11, something isn't right. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1580792/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp