[Bug 96721] i915: black screen with kms enabled on baytrail system

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96721

--- Comment #4 from sassmann at redhat.com ---
With 4.10-rc1 from drm-tip the problem goes away. Checking dmesg the only i915
error remaining is
[   14.962833] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[   14.964726] [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm
chip
not sure if this is something to worry about?

However with that kernel the touchscreen no longer works because the hid device
fails to probe
[   35.152943] i2c_hid: probe of i2c-FTSC1000:00 failed with error -121
but that's probably a separate issue.

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