You have been subscribed to a public bug:
After kernel upgrade from 4.10.0-35 to 4.10.0-37 Ubuntu 17.04 works extremely
slow.
The reason is that i915 driver is UNCLAIMED now.
Error from Xorg logs is:
[ 56749.198] (EE) /dev/dri/card0: failed to set DRM interface version 1.4:
Permission denied
Environment:
Ubuntu 17.04
Kernel 4.10.0-37
Intel HD Graphics 520
INTEL GRAPHICS UPDATE TOOL FOR LINUX* OS V2.0.6
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: zesty
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Intel graphics problems on kernel 4.10.0-37-generic
https://bugs.launchpad.net/bugs/1723174
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