ASUS ZenBook UX305CA Trackpad: psm0: unable to allocate IRQ

[Matthias Apitz]

El día Saturday, July 09, 2016 a las 02:54:18PM +0000, Malcolm Matalka escribió:

> > Can you please share the part of the boot messages about the TP? How do
> > you got Ubuntu booting on it and which version? Thanks
> >
> > 	matthias
> 
> Unfortunately I couldn't copy and paste it anywhere without setting up
> the Ubuntu a bunch more, but I wrote down the relevant portions (I
> think):
> 
> "Elan Touchpad ... pci0000:00/0000:00:15.0/i2c_designware.0/i2c-4/....."
> 
> I am booting the latest version of Ubuntu on a USB flash and I chose the
> "Try Ubuntu without Installing" boot option.

I did the same with an Ubuntu 16.04 live system which gives uname as

# uname -a
Linux ubuntu 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

and the device 0x15 (i2c elan) was not probed, only:

# fgrep i2c ubuntu*
ubuntu-dmesg.out:[    8.873339] i2c /dev entries driver
ubuntu-dmesg.out:[   33.350074] __add_probed_i2c_device failed to register device 8-4a
ubuntu-dmesg.out:[   33.364493] __add_probed_i2c_device failed to register device 7-67
ubuntu-dmesg.out:[   33.521212] __add_probed_i2c_device failed to register device 8-4a
ubuntu-dmesg.out:[   33.521789] __add_probed_i2c_device failed to register device 7-67
ubuntu-dmesg.out:[   34.122886] __add_probed_i2c_device failed to register device 8-4a
ubuntu-dmesg.out:[   34.123290] __add_probed_i2c_device failed to register device 7-67
ubuntu-dmesg.out:[   34.566593] __add_probed_i2c_device failed to register device 8-4a
ubuntu-dmesg.out:[   34.567168] __add_probed_i2c_device failed to register device 7-67
ubuntu-dmesg.out:[   34.711554] __add_probed_i2c_device failed to register device 8-4a
ubuntu-dmesg.out:[   34.712455] __add_probed_i2c_device failed to register device 7-67

the 67 is probing for the cyapa which is not there anymore in my
netbook;

this absents does not really surprises me because the elan support was added
some weeks ago in linux 4.7 and the above kernel is fro April, you must
have some other Ubuntu.

Can you please re-boot again, plugin after boot some additional USB
stick with a VFAT file system and save to this the output of:

# uname -a
# dmesg
# cat /proc/bus/input/devices

Please post it here or send it to me off-list.

This would be of great help for someone porting the driver over.

Thanks 

	matthias


-- 
Matthias Apitz, ✉ guru at unixarea.de, ⌂ http://www.unixarea.de/  ☎ +49-176-38902045
"Wer übersieht, dass wir uns den anderen weggenommen haben und sie uns wiederhaben wollen,
kann von den Kämpfen der letzten Tage keinen verstehen. Und kann natürlich auch keinen
dieser Kämpfe bestehen." Hermann Kant in jW 1.10.1989