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 Forum index » House Training » Users ( For the regulars )
How to setup touchpad & sound HP Chromebook 14?
Moderators: Flash, Ian, JohnMurga
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vtpup


Joined: 15 Oct 2008
Posts: 1240
Location: Republic of Vermont

PostPosted: Sun 16 Sep 2018, 23:16    Post subject:  

Just came to a halt on the kernel transplants because I realized that xenialpup64 has a late enough kernel for the elantech touchpad/et al. and the modules elan_i2c and elants_i2c are already loaded.

This seems to say the problem is elsewhere than the kernel, or modules loaded.

So bigpup, what do you think of this as a possible cause:

https://askubuntu.com/questions/763584/elantech-touchpad-not-working-on-ubuntu-16-04-and-arch-linux

and here:

https://unix.stackexchange.com/questions/28736/what-does-the-i8042-nomux-1-kernel-option-do-during-booting-of-ubuntu

I'm not sure how to apply
Code:
i8042.nomux=1
to the live Xenialpup ISO to test. I do know how to add it to a startup stanza in Grub for a traditional frugal install.

But I would like to try it out as a live usb trial first before messing with my working GalliumOS install.

_________________
Acer Aspire 5349-2635 laptop dual proc, 4gb ram, frugal Tahrpup.
1999 Thinkpad 600e hacked Pent 3, overclocked 800 mHz, 490 kb running Lupu 528

Acer Iconia A1-830 Atom x86 Android tablet
www.sredmond.com
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peterw

Joined: 19 Jul 2006
Posts: 313
Location: UK

PostPosted: Mon 17 Sep 2018, 02:36    Post subject: Kernel Compiling  

If you want to see what is included in the Puppy kernel configuration then you look at the Github details such as:
[url] https://github.com/puppylinux-woof-CE/woof-CE/tree/testing/kernel-kit/configs_x86[/url]
And if you want to see what a Ubuntu has have a look under /boot and you will see the config file.
You can compare the two and make adjustments if you want and recompile with woof-ce kernel kit.

Note you cannot just take a Ubuntu kernel and plug it into Puppy since Puppy needs AUFS or similar.
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vtpup


Joined: 15 Oct 2008
Posts: 1240
Location: Republic of Vermont

PostPosted: Mon 17 Sep 2018, 07:38    Post subject:  

Thanks peter.
_________________
Acer Aspire 5349-2635 laptop dual proc, 4gb ram, frugal Tahrpup.
1999 Thinkpad 600e hacked Pent 3, overclocked 800 mHz, 490 kb running Lupu 528

Acer Iconia A1-830 Atom x86 Android tablet
www.sredmond.com
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vtpup


Joined: 15 Oct 2008
Posts: 1240
Location: Republic of Vermont

PostPosted: Thu 20 Sep 2018, 23:03    Post subject:  

Fatdog720-64 loads on the Acer R11, and the touchpad and touchscreen both work well if you install the C720 patch:

https://distro.ibiblio.org/fatdog/packages/720/c720_720-120417-x86_64-1.txz

For me, the big problem was that the keyboard still didn't work.

Because Fatdog does have an easy way to change kernels, I then tried a 4.7.1 kernel. But that did not enable the keyboard. I had read for other distros that kernels in the 4.8.x series had broken keyboard response for other earlier Acer chromebooks, but that reverting to 4.7.x series had restored it.

That did not work with Fatdog720-64

I've also tried using some suggested start up cheatcodes with both kernels:
i8042.nomux=1, and i8042.reset, but with no luck.

At this point, I'm stumped on the keyboard issue with Fatdog. Close with touchpad working well, but still unusable

With Xenialpup64, I don't have a either a working keyboard or a working trackpad/track screen.

My guess is that the area for investigation is probably /etc/x11/config.d/ as configurations in this area get changed around in Fatdog when the c720 chromebook patch is applied and that patch makes the touchpad usable.

Edit: a recent reference online I found suggests that a recompiled arch kernel works for the Acer R11 because the number of available interrupts was increased by 1, and there was a conflict of resources between touchpad, touchscreen, and keyboard by the necessary elants_i2c kernel module.

The input devices are all Elantech brand.

_________________
Acer Aspire 5349-2635 laptop dual proc, 4gb ram, frugal Tahrpup.
1999 Thinkpad 600e hacked Pent 3, overclocked 800 mHz, 490 kb running Lupu 528

Acer Iconia A1-830 Atom x86 Android tablet
www.sredmond.com
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proebler

Joined: 24 Jan 2012
Posts: 145
Location: TAS

PostPosted: Fri 21 Sep 2018, 07:54    Post subject:  

hi vtpup,

this may not help you much.
On Fatdog with the c720 plugin, the special keys (the "F" keys plus one other) are configured in root/.sven/key_config

There is a GUI to view the configuration through the keyboard icon next to wpa_gui icon in the taskbar; right-click > Preferences.
I find that root/.sven/key_config cannot be changed directly from this GUI. However if I edit key_config and then re-start x, the edit will show in the GUI.
When I quit sven, the special keys no longer work.

I can run
slacko 6.9.6.4, kernel 3.14.78, on the c720 Chromebook getting a functional keyboard but no touchpad, no special keys, I have to use the mouse.
ditto
UPupBB-18.05, kernel 4.9.96-lxpup-32 pae

I can run
DebLive_Stretch-xfce4-i386, kernel 4.9.0-6-686-pae, on the c720 Chromebook getting a functional keyboard AND touchpad, no special keys.
ditto
BionicDog32-alpha-2018-02-13, kernel 4.14.0-13-generic
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