Hmm, I feel it is probable that the i915 error and OpenGL freezes are
two separate issues. I tested with various kernels, and these are the
results:
GL bug:
3.13 KO
3.19 KO
4.2 KO
4.3 KO
4.4 KO
4.5 KO
i915 bug:
4.2 KO
4.3 OK
4.4 OK
So it seems 4.3 kernel has fixed the i915 issue, but the GL freezes
still do occur.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-bug-exists-upstream-4.2 kernel-fixed-upstream-4.3
kernel-fixed-upstream-4.4 kernel-fixed-upstream-4.5-rc7
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https://bugs.launchpad.net/bugs/1554299
Title:
drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in
dpll_hw_state.wrpll (expected 0xb0210614, found 0x00000000)
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