libgl not found on nvidia machines (so far)

[kevin gunn]

So I've just had 2 recent complaints on libgl not being found on nvidia.
here: http://askubuntu.com/questions/759647/opengl-error-in-snaps-ubuntu-16-04
and on IRC

I cannot determine if anyone has had success running one of the desktop-example apps from the store on an nvidia gpu machine.
I asked Alberto Aguirre on the mir team (who has a nvidia gpu) to try SDoC and install the ubuntu-clock-app from the store - he confirms seeing the exact same issue, he can be questioned if debug help is needed.

Note, from an engagement on IRC earlier, the person confirmed that even rebuilding the clock snap locally and sideloading did not address the issue.

[Michael Vogt (mvo)]

We will need to ship a systemd mount unit in the nvidia driver that sets up a bind mount from /usr/lib/nvidia-361 to /var/lib/snapd/lib/gl/

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Zygmunt Krynicki (zyga)]

Dear reporter.

Can you please share the following information:

 - version of snapd and snap-confine (you can check with "apt-cache policy snap-confine")
 - make and model of the GPU you are using
 - the installed driver packages, you can quickly find this with "dpkg --get-selections | grep nvidia")
 - if the snap is public, name and revision of the snap you've tried ("snap list" shows the revision).

Thanks

[Alberto Aguirre (albaguirre)]

apt-cache policy snapd
snapd:
  Installed: 2.0.9
  Candidate: 2.0.9
  Version table:
 *** 2.0.9 500
        500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages

apt-cache policy snap-confine
N: Unable to locate package snap-confine

dpkg --get-selections | grep nvidia
nvidia-361 install
nvidia-opencl-icd-361 install
nvidia-prime install
nvidia-settings install

snap: ubuntu-clock-app version: 3.6+snap3, rev: 5

Running it results in:

$ubuntu-clock-app.clock
libGL error: No matchings fbConfigs or visuals found
libGL error: failed to load driver: swrast
Unrecognized OpenGL version
Unrecognized OpenGL version

[Zygmunt Krynicki (zyga)]

Thank you for completing this. I think this problem may go away entirely with snapd 2.0.10 and snap-confine 1.0.34 that are currently in xenial-proposed.

[Alberto Aguirre (albaguirre)]

I have snapd 2.0.10 now, still ubuntu-clock-app does not start

http://pastebin.ubuntu.com/19093778/

[Diego Estévez (dgmvecuador)]

The ubuntu-clock-app from the repository has a bug, but you can build it using snapcraft from this github: https://github.com/ubuntu/snappy-playpen

Even rebuilding, you will have the same problem, but there is a workaround, copy all files from /usr/lib/nvidia-xxx to /var/lib/snapd/lib/gl/.

This workaround even work with krita.

[Bill Filler (bfiller)]

I can also confirm with snapd 2.0.10 that I get the same gl errors so this is not fixed.
Also tried the workaround, copy all files from /usr/lib/nvidia-xxx to /var/lib/snapd/lib/gl/ and restarted snapd and now things are working.

[Zygmunt Krynicki (zyga)]

This is probably a duplicate of 1615248 that is now fixed upstream.

[Neil McPhail (njmcphail)]

I do not think this is a duplicate of bug #1615248, as removing the dangling symlinks does not fix this issue for me.

[ike (ikeahloe)]

This also affects the Shotcut snap. *Might* also be why the blender-tpaw build is suboptimal and can't take advantage of GPUs.