Does anyone have the technical sheet on this touchpad?
I've seen reference to it's clock being 133mhz, but can't confirm it as I don't
own an oscilloscope.
If it's a different clock, it should be a simple patch to get it
functioning normally again.
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Someone's probably working on it. I personally am. But have nothing to
show yet. Most likely the same with whoever else is working on it
currently
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Packages, which is subscribed to linux in Ubuntu.
That's pretty much all you can do unless you're capable of writing
drivers or reading ACPI tables yourself.
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https://bugs.launchpad.net/bugs/1795292
Title:
ELAN469D touch
acpidump:
5B10: 39 5F 48 49 44 00 A0 13 93 54 43 50 44 0A 02 A4 9_HIDTCPD...
5B20: 0D 53 59 4E 41 33 32 35 35 00 A0 13 93 54 43 50 .SYNA3255TCP
5B30: 44 0A 03 A4 0D 41 4C 50 53 31 32 31 45 00 A4 0D DALPS121E...
5B40: 45 4C 41 4E 34 36 39 44 00 08 45 49 43 30 11 21
Kernel 4.19.0-rc7
Laptop is a Lenovo IdeaPad 330S-15ARR. Same issue as everyone else.
Attempting to install various ALPS drivers doesn't work, nor does the
i8042.reset workaround.
Patching elan_i2c_core to add the 469D entry also failed.
Notes: noapic is required for the laptop to load into
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