On 7/26/23 17:54, August Wikerfors wrote:
Hi,
Since v6.5-rc1 the keyboard on this laptop no longer works. This problem
also existed before v6.0-rc1 commit 9946e39fe8d0 ("ACPI: resource: skip
IRQ override on AMD Zen platforms"), so I suspected the cause to be
a9c4a912b7dc ("ACPI: resource: Remove "Zen" specific match and quirks")
which reverted that commit. Reverting a9c4a912b7dc confirmed this theory.
#regzbot introduced: a9c4a912b7dc
My specs are:
Laptop model: Lenovo Yoga 7 14ARB7
BIOS: K5CN40WWT66 (latest beta from [1])
CPU: AMD Ryzen 5 6600U
Kernel config: [2]
Distribution: Arch Linux
The issue has been confirmed by at least one other user with this
laptop: [3]
[1]
https://forums.lenovo.com/t5/Lenovo-Yoga-Series-Laptops/Yoga-7-14ARB7-keyboard-lag-when-on-certain-websites-or-when-Vantage-is-opened/m-p/5174991?page=28#5974742
[2]
https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/d4a56a1e994201b6c607199922aa22e4337b56c9/config
[3] https://github.com/tomsom/yoga-linux/issues/47
Regards,
August Wikerfors
This is unfortunate. Before we go adding more quirks for your system,
can you please check for a BIOS upgrade for your system? If it's
happening with the latest BIOS, then can you please open a kernel
bugzilla with an acpidump and dmidecode included?
