On Wed, Dec 06, 2023 at 03:21:40PM -0600, Mario Limonciello wrote: > The Framework 16" laptop doesn't have a PS/2 keyboard. At bootup the > following messages are emitted: > > i8042: PNP: No PS/2 controller found. > i8042: PNP: Probing ports directly. > i8042: Can't read CTR while initializing i8042 > i8042: probe of i8042 failed with error -5 > > There are no PNP devices as those listed in `pnp_kbd_devids` but > i8042_pnp_init() ignores this and still runs and will continue to > try to probe. > > As there is no PS/2 keyboard or mouse in this laptop, set a quirk > to avoid this behavior. I believe the proper fix for this is for the firmware not report i8042 as present by properly setting up FADT. Please take a look at arch/x86/kernel/acpi/boot.c::acpi_parse_fadt() and how it sets flag X86_LEGACY_I8042_FIRMWARE_ABSENT. It will still say "PNP: No PS/2 controller found" which is an "informational" message, but should not try to probe ports directly and report errors. Thanks. -- Dmitry
