** Changed in: unity8 (Ubuntu)
Status: New => Confirmed
** Changed in: unity8 (Ubuntu)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1580792
Title:
Unity8 on Intel Pineview performs poorly
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.
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