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 Forum index » House Training » HOWTO ( Solutions )
Chromebook (How to use and put Puppy on a Chromebook)
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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Wed 08 Apr 2020, 13:19    Post subject:  

Good to know. I do have the full ROM firmware.

As a point of interest I'm about to upgrade that firmware to test whether recent changes (in the last two years have improved the utility of the Acer R11 Chromebook.

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bigpup


Joined: 11 Oct 2009
Posts: 13981
Location: S.C. USA

PostPosted: Wed 08 Apr 2020, 13:33    Post subject:  

I am finding the Linux kernel and how it was configured, when compiled, has a big affect on hardware support.
There are all kinds of settings and configuring that is possible.
I think Puppy could use a special kernel compiled specifically for Chromebooks.
However, who in Puppy Land really understand what that kernel would need configured.

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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Wed 08 Apr 2020, 13:40    Post subject:  

Maybe we could try as a group project (those owning Chromebooks -- or anyone else who wants to join in).

I mean it might start out as the blind leading the blind (at least in my case), but if we ask others here who do know about kernel compiling, we could get answer that help us to move ourselves along.

BTW I just ordered a used Acer 720-2844 Chromebook on Ebay for $65. I hope it's one of the more compatible ones. Once I get that and if it works, I'll swap my daughter for her Acer R11, which can then be a test machine. Presently she does schoolwork on it, and I don't want to mess that up.

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rockedge


Joined: 11 Apr 2012
Posts: 1874
Location: Connecticut, United States

PostPosted: Wed 08 Apr 2020, 13:46    Post subject:  

hello vtpup,

I might be able to help compile kernels for this project if needed
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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Wed 08 Apr 2020, 13:55    Post subject:  

Wow, thank you Rockedge!

Would it matter whether we pick a specific Puppy to use that kernel with to test?

If so, would Bionic64 be OK?

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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Wed 08 Apr 2020, 14:01    Post subject:  

Would it make sense to use the GalliumOS kernel, modified for puppy's needs?

GalliumOS runs well on the Acer R11, with full sound support (absent in all Puppies tried so far). The list of Chromebooks it works with is extensive. See full compatibility list here: https://wiki.galliumos.org/Hardware_Compatibility

Here are the GalliumOS patched Linux kernel sources: https://github.com/GalliumOS/linux

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rockedge


Joined: 11 Apr 2012
Posts: 1874
Location: Connecticut, United States

PostPosted: Wed 08 Apr 2020, 19:31    Post subject:  

I see there are patches for the kernel specifically for chromebooks.

That means we might be able to use the kernel-kit to build a Puppy Linux kernel (Puppy kernels need AUFS to be patched for layering the file system) after applying the chromebook patches. It seems like it might be similar to creating a Puppy Linux real time kernel.

I am researching this avenue to see if we can go straight ahead and produce a kernel capable of being in a Puppy Linux that can run on a chromebook with all the hardware working

we'll see how it goes!

are these chromebooks equipped with ARM processors?
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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Wed 08 Apr 2020, 19:56    Post subject:  

Wow!

They are 64 bit X-86 procs.....

not ARM

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bigpup


Joined: 11 Oct 2009
Posts: 13981
Location: S.C. USA

PostPosted: Wed 08 Apr 2020, 23:59    Post subject:  

The biggest problem with the kernel is having it configured to support the sound device in the Chromebook.
Most everything else works with the kernels in Puppy versions.
Well, newer Chromebooks need to be using a kernel series 4 or 5.

ozsouth worked with me to come up with a kernel that was configured to activate the sound hardware in my HP 14 Chromebook.
It was able to make it an active sound device, that showed in the sound device selections, and had Retrovol mixer settings.
But still no sound from the internal speakers or a headset.
Still something we are missing.

ozsouth could probably give you some info on what he did to compile that kernel.

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rockedge


Joined: 11 Apr 2012
Posts: 1874
Location: Connecticut, United States

PostPosted: Thu 09 Apr 2020, 00:14    Post subject:  

it might be possible to look at the Lubuntu kernel and see what the firmware modules look like. Seems like Lubuntu 16.04 will run on chromebooks x86_64
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ozsouth

Joined: 01 Jan 2010
Posts: 862
Location: S.E Australia

PostPosted: Thu 09 Apr 2020, 01:48    Post subject:  

Attached is the DOTconfig for kernel 4.14.161-u64oz that bigpup referred to above (is for Bionicpup64).
DOTconfig-4.14.161-x86_64-070120.fake.gz
Description  remove .fake.gz
gz

 Download 
Filename  DOTconfig-4.14.161-x86_64-070120.fake.gz 
Filesize  180.51 KB 
Downloaded  128 Time(s) 
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rockedge


Joined: 11 Apr 2012
Posts: 1874
Location: Connecticut, United States

PostPosted: Thu 09 Apr 2020, 02:02    Post subject:  

Hello ozsouth!

thank you for the DOT file! Very cool (for cats)

I will use it as a base to start the quest!
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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Thu 09 Apr 2020, 10:08    Post subject:  

I thought the reason for the development of GalliumOS was that stock Ubuntus (like Lubuntu) did not work well with Chromebooks. I believe it is essentially a fork of Lubuntu specifically aimed at Chromebooks.

I'll try the stock Lubuntu 16.04 with the Acer R11 and let you know in a bit.

EDIT: correction GalliumOS is built on top of Xubuntu, and is modded to work with Chromebooks.

GalliumOS has functional sound support on the R11, and
Quote:
Integrated ChromeOS mouse driver provides a touchpad experience similar to ChromeOS.


Besides audio, touchpad was a major problem with stock Puppies, like Xenialpup64 and Bionicpup64. The cursor jumped all over and was basically unusable, even after trying to work with control utilities.

Fatdog 8xx, for some reason had great touchpad response. Better even than GalliumOS on this Acer R11. But no sound

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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Thu 09 Apr 2020, 11:43    Post subject:  

Acer R11 Chromebook:

Lubuntu 16.04.3 64amd Desktop version test of ISO on USB

Boots, runs, programs open
Trackpad: functions perfectly
Keyboard: does not work, virtual screen keyboard does not work
Sound: does not work

Notes:

Because the keyboard does not work I couldn't make a wifi connection, or therefore download any possible solutions.

Trackpad performance was impressive, and I could select and run programs. Much better than on Xenialpup64 or Bionicpup64, or GalliumOS, and equivalent to Fatdog or original ChromeOS. Fully useable.

No audio, either via speakers or earphones tested.

Re. Lubuntu keyboard problem. Error message at startup :
Code:
[0.160125 pinctrl-cherryview INT33FF:01 Failed to Translate GPIO to IRQ ]


(The Acer R11 (CYAN, Braswell chipset) is known to require the pinctrl-cherryview module to be loaded into the kernel at compile time in order for keyboard to work .)

_________________
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C720 Chromebk Bionicpup64
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www.youtube.com/watch?v=4sDubB0-REg
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vtpup


Joined: 15 Oct 2008
Posts: 1422
Location: Republic of Vermont

PostPosted: Thu 09 Apr 2020, 14:54    Post subject:  

Bigpup, there are several different HP 14 Chromebooks with different chipsets. I might have found something for the OS side (not kernel side) of the audio issue.

Do you have Baytrail, Apollo, or Haswell chips?
(Chrome model codes KIP, SNAPPY, or FALCO, respectively)

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