Re: hp-wmi: info hotkey has no keycode or scancode

["Dennis Nezic" <dennisn@dennisn.mooo.com>]

On 23 Jan 20:58, Armin Wolf wrote:
> Am 23.01.24 um 16:34 schrieb Hans de Goede:
> 
> > Hi,
> >
> > On 1/23/24 16:13, Dennis Nezic wrote:
> >> On 23 Jan 15:22, Armin Wolf wrote:
> >>> Am 23.01.24 um 09:58 schrieb Armin Wolf:
> >>>
> >>>> Am 23.01.24 um 05:40 schrieb Dennis Nezic:
> >>>>
> >>>>> On 22 Jan 22:23, Dennis Nezic wrote:
> >>>>>> On 22 Jan 11:44, Armin Wolf wrote:
> >>>>>>> Am 22.01.24 um 08:05 schrieb Dennis Nezic:
> >>>>>>>
> >>>>>>>> On 21 Jan 16:16, Armin Wolf wrote:
> >>>>>>>>> Am 20.01.24 um 22:39 schrieb Dennis Nezic:
> >>>>>>>>>
> >>>>>>>>>> On 20 Jan 21:52, Armin Wolf wrote:
> >>>>>>>>>>> Am 20.01.24 um 19:58 schrieb Dennis Nezic:
> >>>>>>>>>>>
> >>>>>>>>>>>> Guys, the "info" illuminated touch-key (hotkey?) on my laptop
> >>>>>>>>>>>> "doesn't
> >>>>>>>>>>>> work", showkey doesn't report any keycode or scancode. I don't
> >>>>>>>>>>>> see any
> >>>>>>>>>>>> wmi related error messages from dmesg. All the other illuminated
> >>>>>>>>>>>> "hotkeys" work fine, although confusingly evtest and "libinput
> >>>>>>>>>>>> debug-events" report that they're coming through the event
> >>>>>>>>>>>> interface
> >>>>>>>>>>>> associated with "AT Translated Set 2 keyboard" instead of "HP WMI
> >>>>>>>>>>>> hotkeys", but hey, as long as I receive them I'm okay :p.
> >>>>>>>>>>>>
> >>>>>>>>>>>> hp-wmi.c does seem to reference it:
> >>>>>>>>>>>>
> >>>>>>>>>>>> How can I go about troubleshooting this? (I'm using kernel 6.6.8)
> >>>>>>>>>>> it can be possible that your machine does not use hp-wmi to
> >>>>>>>>>>> deliver keycodes
> >>>>>>>>>>> to the operating system, but instead emulates a standard
> >>>>>>>>>>> keyboard controller.
> >>>>>>>>>>>
> >>>>>>>>>>> Can you check with "kacpimon" that events concerning a PNP0C14
> >>>>>>>>>>> device are being
> >>>>>>>>>>> received?
> >>>>>>>>>> Very possible indeed. "kacpimon" doesn't show anything when I
> >>>>>>>>>> press that
> >>>>>>>>>> touchkey, but it does when I press all the other touchkeys. (I
> >>>>>>>>>> do get
> >>>>>>>>>> lots of accelerometer noise.)
> >>>>>>>>>>
> >>>>>>>>> Interesting, can you please share the output of:
> >>>>>>>>> - "kacpimon" while you where pressing the buttons
> >>>>>>>>> - "acpidump"
> >>>>>>>> ...
> >>>>>>> Those events are touchscreen events, maybe your mouse is
> >>>>>>> responsible for them.
> >>>>>> Right, of course, woops, these must have been the touchpad press
> >>>>>> events,
> >>>>>> as I was moving the mouse around :P
> >>>>>>
> >>>>>>> Instead they look like this:
> >>>>>>>
> >>>>>> I'm definitely not seeing anything like that, just "^Input Layer:
> >>>>>> Type"'s
> >>>>>>
> >>>>>>> Can you try to use kacpimon again but without root privileges? This
> >>>>>>> way only netlink events show up.
> >>>>>>> You might also stop acpid while you are using kacpimon.
> >>>>>> 0 output from/with netlink, even though kacpimon said:
> >>>>>>
> >>>>>> Netlink ACPI Family ID: 24
> >>>>>> Netlink ACPI Multicast Group ID: 5
> >>>>>> netlink opened successfully
> >>>>>>
> >>>>>> Remember all my other fancy hotkeys "work", but they appear as regular
> >>>>>> keypress events from an "AT Translated Set 2 keyboard".
> >>>>>>
> >>>>>>> If you still cannot receive any netlink events, then i might need
> >>>>>>> to take a look at your ACPI tables
> >>>>>>> via acpidump.
> >>>>>> https://dennisn.mooo.com/stuff/dump.txt
> >>>>>>
> >>>>>>> Thanks,
> >>>>>>> Armin Wolf
> >>>>>> Thank you again sir!
> >>>>> A1799AC3-9429-4529-927E-DFE13736EEBA has zero instances
> >>>>> 8232DE3D-663D-4327-A8F4-E293ADB9BF05 has zero instances
> >>>>> 8F1F6436-9F42-42C8-BADC-0E9424F20C9A has zero instances
> >>>>> 8F1F6435-9F42-42C8-BADC-0E9424F20C9A has zero instances
> >>>>>
> >>>>> (Btw that "info" key does get illuminated when I touch/press it, even
> >>>>> though no codes are seen.)
> >>>> These warnings in dmesg are harmless, they are informing you that some
> >>>> WMI devices are unavailable.
> >>>>
> >>>> I took a look at your ACPI tables and it seems that the WMI device
> >>>> used by hp-wmi is indeed unused.
> >>>> What is the model name of your HP notebook?
> >> HP Compaq 8710p
> >>
> >>> Also i just noted that your notebook might contain a PNP0C32 quickstart button device.
> >>> Can you tell me the output of "cat /sys/bus/acpi/devices/PNP0C32\:00/status"?
> >> 15
> > Interesting.
> >
> > There have been several attempts to add support for this
> > in the past. The last one being:
> >
> > https://lore.kernel.org/platform-driver-x86/20220922182424.934340-1-lkml@vorpal.se/
> >
> > Note that in this case this also required some vender
> > specific poking in toshiba_acpi to get things to work.
> >
> > I see that the HP Compaq 8710p is about the same vintage
> > as the Toshiba Z830 on which the last attempt to do
> > something about the quick start buttons was done.
> >
> > So this might very well explain the missing button issue.
> >
> > Regards,
> >
> > Hans
> >
> I can try to upstream the necessary changes. But i cannot test the changes concerning the toshiba_acpi driver.
> Would it be ok if i omit those changes?
> 
> Dennis, can you check that your device runs the latest BIOS? And if this is not the case, could you do a BIOS
> update and send me an updated acpidump?
> 
> The reason for this is that currently, the button device receives only system wake events, but no button press
> events during runtime. Maybe this is a BIOS bug, although this could also be intentional (fancy power button).

Updated acpidump: https://dennisn.mooo.com/stuff/dump2.txt.gz