Hi,
I recently got my hands on a ThinkPad L13 Yoga Gen 2 AMD (the 5850U
spec). It works great on Linux, except for the tablet mode switch, which
appears to be broken on mainline (I'm running 5.18-rc3), as well as
older kernels.
dmesg shows an error that appears to originate from the
`hotkey_gmms_get_tablet_mode` function in
drivers/platform/x86/thinkpad_acpi.c, specifically when checking if the
mode is valid (lines 2020ff.):
thinkpad_acpi: Unknown/reserved multi mode value 0x0000 for type 4,
please report this to ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
I have opened a bug report in the kernel bugzilla
(https://bugzilla.kernel.org/show_bug.cgi?id=215873), but I thought I
would do as the module tells me and report this issue in the mailing
list, too.
I don't have much experience in kernel development so I might not be
much help, but please let me know if I can test something, try out
patches, etc. I run my own distribution on the machine, so patching and
compiling kernels is not a big deal for me.
Thanks
---
Mae Dartmann
git : https://github.com/mdartmann
mail: hello@xxxxxxxxxxxxxxxx
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