Linphone under Mate desktop

[Pavel Vlček]

Hi,

I installed the latest Linphone 4.1 from flatpak. I have one small 
issue. It runs as Linphone superuser and the interface is inaccessible. 
The command, which is used to run this app is:

/usr/bin/flatpak run --branch=4.1.1 --arch=x86_64 --command=linphone 
--file-forwarding com.belledonnecommunications.linphone @@u %u @@

When I want to use:

sudo -E /usr/bin/flatpak run --branch=4.1.1 --arch=x86_64 
--command=linphone --file-forwarding 
com.belledonnecommunications.linphone @@u %u @@

I get error about can't execute patch.

So my question is, can I use Linphone 4.1 under Mate desktop? Ubuntu has 
3.6.1 only, which is outdated and has problems with sound for me. Ubuntu 
18.04.

Thanks,

Pavel