Enabilng webgl

[suoko]

I enabled webgl followingthe commands found in telegram:

These are the Terminal commands I used: 
sudo ubports-qa install xenial_-_gpu-browser

sudo -i

mount -o remount,rw /

cd /etc/profile.d/

cp disable-qtwebengine-gpu.sh disable-qtwebengine-gpu.old

rm disable-qtwebengine-gpu.sh

and it works ok but i'm left with this apt status:

ablet@ubuntu-phablet:~$ sudo apt dist-upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be DOWNGRADED:
  lxc-android-config
0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
Need to get 0 B/48.7 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
dpkg: warning: downgrading lxc-android-config from 0.233+ubports0+0~20210326233237.3~1.gbp614445 to 0.233+ubports0+0~20210319074119.1~1.gbp6f8eda
(Reading database ... 51142 files and directories currently installed.)
Preparing to unpack .../lxc-android-config_0.233+ubports0+0~20210319074119.1~1.gbp6f8eda_all.deb ...
Unpacking lxc-android-config (0.233+ubports0+0~20210319074119.1~1.gbp6f8eda) over (0.233+ubports0+0~20210326233237.3~1.gbp614445) ...
dpkg: error processing archive /var/cache/apt/archives/lxc-android-config_0.233+ubports0+0~20210319074119.1~1.gbp6f8eda_all.deb (--unpack):
 unable to make backup link of './lib/udev/rules.d/70-android.rules' before installing new version: Invalid cross-device link
Processing triggers for ureadahead (0.100.0-19.1) ...
Processing triggers for dbus (1.10.6-1ubuntu3.6) ...
Errors were encountered while processing:
 /var/cache/apt/archives/lxc-android-config_0.233+ubports0+0~20210319074119.1~1.gbp6f8eda_all.deb
W: No sandbox user '_apt' on the system, can not drop privileges
E: Sub-process /usr/bin/dpkg returned an error code (1)

Can this be fixed?

[flohack]

@suoko the problem is that we bind-mount a lot of files, if an update comes across such a file then it cannot be updated. Thats also why apt is only used as an update method in development. In your case its probably Ok to ignore the error though.

[mateo_salta]

@suoko were you on dev channel before using the ubports qa tool?

[zubozrout]

@mateo_salta I am getting the same and am on the dev channel, so that's not it: https://forums.ubports.com/topic/3188/morph-browser-not-possible-to-show-map-due-to-missing-webgl/9?_=1627584581816 ... Is the ubports-qa command even available on stable/staging? I thought it is not present at all there.

[kugiigi]

@zubozrout It is but it's usually not recommended to use there especially if devel already has many changes compared to them. So it's safer when closer to an OTA release