Messages in this thread | | | Date | Sat, 9 Jul 2022 16:56:15 +0200 | Subject | Re: input/i8042: Malfunctioning brightness keys on HP Elite Dragonfly G2 | From | Hans de Goede <> |
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Hi,
On 7/5/22 19:25, Alex Dewar wrote: > Friendly ping? 🙂 > > I'm also CC'ing the x86 platform people into this, as I'm not sure > whether this problem is something more within their remit.
Please test the atbkd device with "sudo evemu-record" or "sudo evtest" and if the brightness keys generate events there, write down the raw event codes (MSC events).
Assuming the brightness keys indeed send events here, then:
After that you need to create an update to: /lib/udev/hwdb.d/60-keyboard.hwdb to fix the mapping for your laptop. See the "To update this file, create a new file ..." section.
You can find the DMI match pattern used in this file by doing:
cat /sys/class/dmi/id/modalias
Once you have things working, please submit a pull-req to upstream systemd to get these quirk included in the offical hwdb. Or send me a copy of the local 70-keyboard.hwdb override you have created and I can submit it upstream for you.
Regards,
Hans
> > Best, > Alex > > On Wed, 2022-06-29 at 10:43 +0100, Alex Dewar wrote: >> Hi, >> >> I'm running Linux 5.18.7 on an HP Elite Dragonfly G2 laptop, which >> seems >> to use the i8042 driver. Mostly things seem to work (including >> hotkeys) >> except that the increase/decrease brightness keys instead send the >> "mic >> mute" keycode. (The *actual* mic mute key works fine.) >> >> Any ideas? Do we need to add a quirk? >> >> Best, >> Alex >
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