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st834
Tux's lil' helper
Joined: 23 Jun 2022
Posts: 98
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 Posted: Sun Oct 01, 2023 3:11 pm Post subject: ELAN TouchPad on ZenBook Asus not woks |
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Hi !
Asus Zenbook UX305C computer, 2015 year When setting up the touchpad according to the recommendations :
I get an error, that the touchpad is not found (exactly as described here https://wiki.gentoo.org/wiki/Synaptics, in the problem section). : commands
touchpad is not seen, the commands
| Code: | dmesg | grep input (no touchpad in the list)
cat /proc/bus/input/devices |
also.
When I booting Live Gentoo, touchpad works, the commands
| Code: | dmesg | grep input (no touchpad listed)
cat /proc/bus/input/devices |
shows that it is there. The commands do not show the controller as well as mine. With the commands i receive exactly as with not Live Gentoo system.
Now, I have all ELAN devices, PS/2 mouse, USB and i2C support enabled in the kernel as shown in the Gentoo manuals above, and oyher sources and forums, but still no controller is shown.
I would appreciate any ideas on how I can enable the touchpad in my case
Thank you. |
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pietinger
Moderator
Joined: 17 Oct 2006
Posts: 5377
Location: Bavaria
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| Posted: Sun Oct 01, 2023 5:05 pm Post subject: |
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I assume you have a touchpad which is connected via i2c. And I assume you have configured your kernel yourself. I also suspect that either
- i2c, or
- pinctrl,
- or something else is missing.
Have a look at this post and check if you have activated everything necessary in the kernel:
https://forums.gentoo.org/viewtopic-p-8692426.html#8692426
(just look at the settings and ignore my german text (or translate with google)).
If you get stuck, we would need your .config and the output of "lsmod" and "dmesg" after booting with GentooLive. |
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st834
Tux's lil' helper
Joined: 23 Jun 2022
Posts: 98
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| Posted: Sun Oct 01, 2023 5:33 pm Post subject: |
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Hi,
Thank you very much for your reply, yes you are right, I did configure the kernel myself. This is the second computer I have configured Gentoo on, the first one with an AMD processor took five minutes. Here I try be to understand what kernel option is missing already whole day.
I will now read the post you recommended. I understand German better than English.
Thank you very much ! |
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De-Javu
n00b
Joined: 30 Mar 2009
Posts: 24
Location: USA
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| Posted: Tue Oct 03, 2023 12:06 am Post subject: |
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The ELAN and ALPS trackpads of a certain generation are notoriously difficult with Linux. My 6th gen Intel based Thinkpad suffers from this. However, it was fixed in Kernel 6.5.0 finally, so I suggest to compare your kernel against the distribution kernel sys-kernel/gentoo-kernel and see if the issue persists. Then if it works, you know it's most likely a recent patch that makes the trackpad work. Until 6.5.0 I had to add a boot option to make the trackpad work reliably.
There are some Ubuntu bug reports which address the issue of non-working touchpad (sometimes ELAN, sometimes not), but on older kernel, usually pre-6.0, still it might have some relevant into to help you source the issue: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875983 for example |
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