On a convertible laptop running on a mobile AMD Ryzen series like a HP Envy 360, SW_TABLET_MODE failed to run preventing the disabling of keyboard when a device is folded in tablet mode. The issue is similar to https://bugzilla.kernel.org/show_bug.cgi?id=207433 for Intel HID suggesting either a driver or a firmware bug.
Here is the hardware information: sudo dmidecode -s system-manufacturer HP sudo dmidecode -s system-product-name HP ENVY x360 Convertible 15-cp0xxx sudo dmidecode -s bios-version F.48 It seems some modification inside https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/platform/x86/hp-wmi.c is needed when using with the recently landed AMD Sensor Fusion Hub.
Have you checked the latest kernel? Does it have the bug?
Latest kernel 5.12.9-300 disabled SW_TABLET_MODE on hp-wmi because it never worked at all due possible missing driver. The current status showed: # EVEMU 1.3 # Kernel: 5.12.9-300.fc34.x86_64 # DMI: dmi:bvnAMI:bvrF.48:bd11/26/2020:br15.48:efr92.48:svnHP:pnHPENVYx360Convertible15-cp0xxx:pvr:rvnHP:rn8497:rvr92.48:cvnHP:ct31:cvrChassisVersion: # Input device name: "HP WMI hotkeys" # Input device ID: bus 0x19 vendor 0000 product 0000 version 0000 # Supported events: # Event type 0 (EV_SYN) # Event code 0 (SYN_REPORT) # Event code 1 (SYN_CONFIG) # Event code 2 (SYN_MT_REPORT) # Event code 3 (SYN_DROPPED) # Event code 4 ((null)) # Event code 5 ((null)) # Event code 6 ((null)) # Event code 7 ((null)) # Event code 8 ((null)) # Event code 9 ((null)) # Event code 10 ((null)) # Event code 11 ((null)) # Event code 12 ((null)) # Event code 13 ((null)) # Event code 14 ((null)) # Event code 15 (SYN_MAX) # Event type 1 (EV_KEY) # Event code 138 (KEY_HELP) # Event code 141 (KEY_SETUP) # Event code 148 (KEY_PROG1) # Event code 153 (KEY_ROTATE_DISPLAY) # Event code 224 (KEY_BRIGHTNESSDOWN) # Event code 225 (KEY_BRIGHTNESSUP) # Event code 226 (KEY_MEDIA) # Event code 240 (KEY_UNKNOWN) # Event code 358 (KEY_INFO) # Event type 4 (EV_MSC) # Event code 4 (MSC_SCAN) # Event type 5 (EV_SW) # Event code 5 (SW_DOCK) # State 0 The bug still remains as the keyboard still works even on tablet mode. Ideally, it should be disabled at that mode while the touchscreen remains active.
See the linked showing that SW_TABLET_MODE never worked with hp-wmi and why it was disabled in kernel 5.11.x for the time being: https://bugzilla.redhat.com/show_bug.cgi?id=1651886#c44
Add Hans to the Cc list, he made a lot of work on different laptops to make SW_TABLET_MODE working.
I'd expect that this is actually fixed now in 5.18 or later by this commit: 520ee4ea1cc6 ("platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method") Can you please recheck on a kernel containing that?
Unfortunately, I have no longer a HP Envy x360 for testing anymore. It is replaced by a Dell Inspiron 14 7425 2-in-1 Ryzen 7 5825U.
Okay, I'll close this then, thanks.
I can confirm that this bug still persists in kernel 6.0 so the path submitted in 5.18 didn't work for at least my HP envy x360. The only thing that changed since that patch is now that when running evtest the SW_TABLET_MODE shows up as an input device but the event never triggers when putting the device in tablet mode.
I can confirm that this bug is still present in kernel 6.1. SW_TABLET_MODE does show up as an input device, but never triggers an event.