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15 June 2017 @ 02:28 pm
Bay and Cherry Trail kernel improvements in 4.12  
For the last couple of months I've been working on improving Linux support for Intel Bay and Cherry Trail based tablets and laptops as a spare-time project.

I'm happy to report that quite a bit of work on this has landed for 4.12, specifically the following fixes / improvements have landed:

  • LCD panel not working with the i915 driver on some devices

  • Battery monitoring not working on most Bay and Cherry devices (battery monitoring did not work on any device using the very popular AXP288 PMIC)

  • Backlight control not working on many devices (you need to builtin the pwm-lpss drivers, or add them to your initrd for this fix to work)

  • Volume and power buttons not working on Cherry Trail devices shipping with Win10

  • The microsd slot on the Asus Transformer T100TA not working

  • Preliminary (incomplete) support Cherry Trail devices with a Whiskey Cove PMIC, some bits to get e.g. battery monitoring working are still missing

  • Added the rtl8723bs driver to staging, enabling ootb support for wifi on many devices

I've also prepared a patch for the Fedora kernel config to enable the necessary new drivers so this should all also work with the upcoming 4.12
kernel for Fedora.
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