Maximilian Luz

Correct, that means that it doesn't understand the data being received. You could try to log the data it receives and see if you can make some sense of that....

I've included this in our kernel repo. So the next time we update our patches here, it will be included. @nine7nine Thanks for tracking this down!

The patch will be included in the v6.9.7 release.

Can you try applying the following change? ```diff diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c index 6cef456a40f1..081d326e7983 100644 --- a/drivers/platform/surface/surface_aggregator_registry.c +++ b/drivers/platform/surface/surface_aggregator_registry.c @@ -480,6 +480,9 @@ static const struct acpi_device_id ssam_platform_hub_acpi_match[] = {...

> I also noticed that ssam_node_group_sl7 only contains a few nodes, and lacks for example, the keyboard. any advice on how to find out which nodes need to be in...

@rushlife So both the touchpad and the keyboard (with patches)? I think 6.14 might include the new upstream ITHC patches. Also just single-touch or also multi-touch?

``` surface_hid 01:15:01:03:00: unexpected descriptor length: got 0, expected 9 ``` That indicates that there is no HID device present in that slot. So it's quite likely the touchpad is...

Could you post a dmesg log with the touchpad working?

Yeah, that looks like it's using one of those IPTS touchpads. You'd probably have to ask @StollD for any problems with that.