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.
Unfortunately we're covering multiple issues here. This bug should be about the dash crashing continuously. We can deal with performance elsewhere... -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1549455 Title: Unity8-dash on Intel Pineview graphics crashes and restarts continuously [qtubuntu: ASSERT: "eglDestroyContext(mEglDisplay, mEglContext) == EGL_TRUE"] Status in Mir: Invalid Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtdeclarative package in Ubuntu: Confirmed Status in qtmir package in Ubuntu: Confirmed Status in qtubuntu package in Ubuntu: Triaged Status in unity8 package in Ubuntu: Confirmed Bug description: This bug Makes the pc UNUSABLE when I try to launch Unity 8 and Mir, after writing the password on the login (in the image attached) the bar to enter the password disappears and my computer screen stays stuck without them let me do anything. the connection begins to separate and reattach alone and I can only move the cursor. it makes the computer unusable and I am forced to restart forced to then enter into Unity 7. represented in the screenshot is the lock status after entering the password. Version: unity8.12+16.04.201604.01.1 Version of Mir : 0.21 To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1549455/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp