Crouton: xserver-xorg-video-dummy has unmet dependencies

[nukachicken]

Please paste the output of the following command here: sudo edit-chroot -all

chronos@localhost ~ $ sudo edit-chroot -all
name: xenial
encrypted: yes, locked
Unmounting /mnt/stateful_partition/crouton/chroots/xenial...

I distinctly remember this being more helpful last time and don't know what I did differently. My old readout can be found at #3363.

Please describe your issue:

The fix to my last problem (#3363) had me install target xiwi. The process results in one package failing to install due to unmet dependencies.

Installing target xiwi...
xserver-xorg-video-dummy was already not hold.
Reading package lists... Done
Building dependency tree
Reading state information... Done
xorg is already the newest version (1:7.7+13ubuntu3).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
xserver-xorg-video-dummy : Depends: xorg-video-abi-20
Depends: xserver-xorg-core (>= 2:1.17.99.902)
E: Unable to correct problems, you have held broken packages.
Failed to complete chroot setup.
Unmounting /mnt/stateful_partition/crouton/chroots/xenial...

If known, describe the steps to reproduce the issue:

I ran "sudo sh ~/Downloads/crouton -n xenial -t xiwi -u" as suggested for the problem in #3234.

[Derpjohn]

I am having this same issue. I tried solving it with what was suggested as a workaround in #3234

[zguithues]

@nukachicken It looks like you installed only the xiwi target, and didn't choose any other targets... The xiwi target is a helper that enables the crouton extension, but without choosing any other targets, it doesn't have anything to load into...

Try installing with sudo sh ~/Downloads/crouton -n test1 -t xfce,xiwi and start with sudo startxfce4 -n test1

This will determine if my guess is correct, or if the problem is deeper...

[DennisLfromGA]

@nukachicken,
Since your chroot is encrypted could you please login to it and then show us the output of croutonversion so we can figure out what device you're using and other pertinent details ?

@zguithues,
I think @nukachicken may have other targets/desktops installed, the '-t xiwi -u' argument just adds the 'xiwi' xmethod to his existing chroot.

-DennisL

[zguithues]

@DennisLfromGA DUH!!!!
Thanks for pointing that out... using -u to add targets should perhaps be added to the main page...

[DennisLfromGA]

@nukachicken,

Agreed.
It does briefly mention -

Don't worry if you forget to include a target; you can always update the chroot later and add it. You can see the list of available targets by running sh ~/Downloads/crouton -t help.

But maybe it should go a little further and explain how.

-DennisL

[DennisLfromGA]

@zguithues,

Thanks for pointing that out... using -u to add targets should perhaps be added to the main page...

Done. 👍

Hope this helps,
-DennisL

[nukachicken]

Here it is.

(xenial)[REDACTED]@localhost:~~$ croutonversion
crouton: version 1-20170901092920~master:0216f9d1
release: xenial
architecture: arm64
xmethod: xorg
targets: xiwi,xfce-desktop
host: version 9592.85.0 (Official Build) stable-channel kevin
kernel: Linux localhost 4.4.64-09100-g30321742b4e0 #1 SMP PREEMPT Mon Aug 21 20:02:10 PDT 2017 aarch64 aarch64 aarch64 GNU/Linux
freon: yes

[DennisLfromGA]

@nukachicken,

Just trying to clear up a few things...

The output above shows just the 'xorg' target/xmethod.

1. Are you trying to launch xfce and it's failing?
2. Are you trying to do a crouton update and it's failing?
3. Are you trying to add the 'xiwi' target/xmethod and it's failing?

Once we know what you're running into, we can dig deeper.

Hope this helps,
-DennisL

[nukachicken]

The output shown in the original post results from running "sudo sh ~/Downloads/crouton -n xenial -t xiwi -u"; that is, attempting to add the xiwi target. However, attempting to update it will yield the same error, as it keeps trying to install the same package without addressing the unmet requirement.

[DennisLfromGA]

@nukachicken,

Okay, seems we've had problems with xserver-xorg-video-dummy on ARM devices in the past on previous releases, here's a report from crouton's author/developer -

• Installing xiwi on precise on ARM fails #2822

And here's another current one -

• Cannot install xiwi on Chromebook Flip C100 #3204

One possible workaround is to manually install xserver-xorg-core and xserver-xorg-video-dummy first, then add 'xiwi'.

If you try that please let us know how it goes since it may help others - either way.

Hope this helps,
-DennisL

[nukachicken]

I am completely new to Linux and am kind of starting from scratch on how I can manually install those two. Crouton doesn't seem to offer anything to help me install these specific packages: the most specific target I can hit is xorg, which results in the same error.

I've found that I can find and download specific packages browsing online and using the command wget. However, installing these packages is another matter: suggestions online such as apt-get and dpkg seem to be for different contexts than my little Chrome OS shell. What do I use to put the package in?

[nukachicken]

Oh, I've discovered I can use the -T flag to target a specific file. That may work. Will find the specific ARM file and see if I can do it

EDIT: Never mind. I feel like I've led myself down a path of useless expenditure and will wait for guidance

chronos@localhost ~/Downloads $ sudo sh crouton -T xserver-xorg-core_1.18.3-1ubuntu2_arm64.deb -u
/usr/local/chroots/xenial already exists; updating it...
Enter encryption passphrase for xenial:
Preparing chroot environment...
/home/chronos/user/Downloads/xserver-xorg-core_1.18.3-1ubuntu2_arm64.deb: 1: Syntax error: newline unexpected

[DennisLfromGA]

@nukachicken,

I am completely new to Linux and am kind of starting from scratch on how I can manually install those two.

You'll need to get into the chroot -

sudo enter-chroot

Then install the packages using apt or apt-get -

sudo apt install xserver-xorg-core xserver-xorg-video-dummy

There are tons of resources on the internet that will help you learn more about Linux.

Hope this helps,
-DennisL

[Samtarkras]

Thanks, this solved my problem which seemed to be exactly the same as Nukachicken's

[nukachicken]

Works like a charm. Installing the packages manually from inside the chroot solves the problem, thanks.

[DennisLfromGA]

Great!

Leaving this issue open since 'Fix xserver-xorg-legacy issue with dummy package #3380' is still under review and has not yet merged.

-DennisL

[razrjk]

This resolved my issues as well. Very nice way to run Linux on my Samsung Chromebook Plus along with all the Android apps.

[jywarren]

sudo apt install xserver-xorg-core xserver-xorg-video-dummy

This worked perfectly for me as well, on hana mediatek chromebook while upgrading my crouton install. Thank you! 🎉