Public bug reported: [Impact]
* The builtin keyboard on the Lenovo Yoga 7 Gen 7 doesn't work on linux 5.19.0.15-generic (ubuntu-22.10-beta-desktop-amd64.iso; same problem exists in 5.15.0-43-generic of ubuntu-22.04.1-desktop-amd64.iso) [Fix] 9946e39fe8d0a5da9eb947d8e40a7ef204ba016e ACPI: resource: skip IRQ override on AMD Zen platforms https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.19.y&id=37c81d9f1d1b1458894454efcb857f6a769b6bc4 > IRQ override isn't needed on modern AMD Zen systems. > There's an active low keyboard IRQ on AMD Ryzen 6000 and it will stay > this way on newer platforms. This IRQ override breaks keyboards for > almost all Ryzen 6000 laptops currently on the market. > Skip this IRQ override for all AMD Zen platforms because this IRQ > override is supposed to be a workaround for buggy ACPI DSDT and we can't > have a long list of all future AMD CPUs/Laptops in the kernel code. > If a device with buggy ACPI DSDT shows up, a separated list containing > just them should be created. The fix is in Linux 5.19.10. [Other Info] The keyboard worked when using a linux kernel 5.19.10 (in debian testing). I tried to patch the kernel on the ubuntu live CD ubuntu-22.04.1-desktop-amd64.iso, but the live filesystem could not be mounted and I only got the busybox environment. The keyboard was working though. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1991437 Title: Keyboard inoperative on Lenovo Yoga 7 Gen 7 (AMD Ryzen 6800u) Status in linux package in Ubuntu: New Bug description: [Impact] * The builtin keyboard on the Lenovo Yoga 7 Gen 7 doesn't work on linux 5.19.0.15-generic (ubuntu-22.10-beta-desktop-amd64.iso; same problem exists in 5.15.0-43-generic of ubuntu-22.04.1-desktop- amd64.iso) [Fix] 9946e39fe8d0a5da9eb947d8e40a7ef204ba016e ACPI: resource: skip IRQ override on AMD Zen platforms https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.19.y&id=37c81d9f1d1b1458894454efcb857f6a769b6bc4 > IRQ override isn't needed on modern AMD Zen systems. > There's an active low keyboard IRQ on AMD Ryzen 6000 and it will stay > this way on newer platforms. This IRQ override breaks keyboards for > almost all Ryzen 6000 laptops currently on the market. > Skip this IRQ override for all AMD Zen platforms because this IRQ > override is supposed to be a workaround for buggy ACPI DSDT and we can't > have a long list of all future AMD CPUs/Laptops in the kernel code. > If a device with buggy ACPI DSDT shows up, a separated list containing > just them should be created. The fix is in Linux 5.19.10. [Other Info] The keyboard worked when using a linux kernel 5.19.10 (in debian testing). I tried to patch the kernel on the ubuntu live CD ubuntu-22.04.1-desktop-amd64.iso, but the live filesystem could not be mounted and I only got the busybox environment. The keyboard was working though. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1991437/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
