[Bug 98381] Suspected Kernel problem with Intel driver on Baytrail-T Z3735E tablet - black screen on boot

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 7 19:13:40 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=98381

--- Comment #5 from Jani Nikula <jani.nikula at intel.com> ---
So the hard part here is that while David's problem from comment #3 might be
the same as the original report, we don't know if it really is because we don't
have logs from Jan, the original reporter. Jan has a Baytrail tablet, while
David has a Cherrytrail. David has a DSI display, I suspect Jan has too but no
confirmation.

Anyway, might be two things at play here.

First, a bunch of fixes have recently landed in drm-tip branch of
https://cgit.freedesktop.org/drm-tip which fix stuff for DSI. You should try
kernel built from that.

Second, you should ensure you have these kernel config options set when
building the kernel:

CONFIG_PWM=y
CONFIG_PWM_CRC=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
CONFIG_I2C_DESIGNWARE_PCI=y
CONFIG_INTEL_SOC_PMIC=y
CONFIG_DRM_I915=m

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