Patches related to Thinkpad 13 G2's Raydium touchscreen
Po-Hsu Lin (Sam)
po-hsu.lin at canonical.com
Thu Sep 14 10:10:44 UTC 2017
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On Sun, Sep 10, 2017 at 10:42 PM, Sejo Ruiz <sejoruiz at gmail.com> wrote:
> Hi all.
> I'm trying to get the touchscreen of my laptop (a Thinkpad 13 G2) to work with
> Archlinux. I haven't had much luck until now, so I turned to see if I could make
> it work with Ubuntu. It was a nice surprise to see that it worked out of the
> box. So, now the big question is how can I make it work under Archlinux. Does
> anybody know if there are any patches that are relevant to this? Am I missing
> some configuration?
> As far as I can tell, the touchscreen is listed under xinput --list:
> xinput --list
> ⎡ Virtual core pointer id=2 [master pointer (3)]
> ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
> ⎜ ↳ Raydium Touchscreen id=11 [slave pointer (2)]
> ⎜ ↳ ETPS/2 Elantech TrackPoint id=13 [slave pointer (2)]
> ⎜ ↳ ETPS/2 Elantech Touchpad id=14 [slave pointer (2)]
> ⎣ Virtual core keyboard id=3 [master keyboard (2)]
> ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
> ↳ Power Button id=6 [slave keyboard (3)]
> ↳ Video Bus id=7 [slave keyboard (3)]
> ↳ Power Button id=8 [slave keyboard (3)]
> ↳ Sleep Button id=9 [slave keyboard (3)]
> ↳ Integrated Camera id=10 [slave keyboard (3)]
> ↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)]
> ↳ ThinkPad Extra Buttons id=15 [slave keyboard (3)]
> It also shows up as an input device:
> less /proc/bus/input/devices
> I: Bus=0018 Vendor=0000 Product=0000 Version=0000
> N: Name="Raydium Touchscreen"
> P: Phys=
> S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-6/i2c-RAYD0001:00/input/input10
> U: Uniq=
> H: Handlers=event8 mouse0
> B: PROP=2
> B: EV=b
> B: KEY=400 0 0 0 0 0
> B: ABS=661800001000003
> And finally, the relevant dmesg line.
> dmesg | grep -i ray
> [ 3.407314] input: Raydium Touchscreen as
> Finally, I noticed that in the Ubuntu Live CD, the hid-multitouch module is
> loaded automatically (which doesn't happen in archlinux). I have tried it to
> modprobe it manually using the VENDOR, PRODUCT, BUS and MT_CLASS that appear in Ubuntu,
> without luck. Furthermore, it seems like Archlinux can't read the VENDOR and
> PRODUCT correctly.
> So, I think I'm out of ideas and I'm hoping that one of you guys can lend me a
> Thanks to all of you.
> PS: If there is any other information that is needed to troubleshoot this, I'll
> be happy to provide it.
> Kind regards.
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