https://bugzilla.kernel.org/show_bug.cgi?id=215882

--- Comment #4 from Hans de Goede (jwrdego...@fedoraproject.org) ---
Hmm, ok this is a bit weird.

Can you try blacklisting the "axp288_adc" kernel module and then turning off
the tablet and after it powering back on again without the "axp288_adc" module
loaded do:

i2cget -y -f 6 0x34 0x82
i2cget -y -f 6 0x34 0x84

Again?

Also can you try using:

i2cset -y -f 6 0x34 0x84 0xe3

as workaround ?

I have the feeling that the problem is that the axp288_adc driver ends up
disabling the bias current all together on this device, changing 0x84 from 0xe0
to 0xe3 will enable the bias current without changing the amount of bias
current.

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