Comment 10 for bug 1733123

Hmm, interesting.
Yes, it makes sence that you have X11. Actually Wayland is not supported at the moment - it would grab a black screen.

I've prepared a KDE5 test build of Basket, could you try it too?

0. Please backup basket data before starting - copy or archive ~/.kde/share/apps/basket folder

1. You'll need to install KDE and Qt dependencies, remove Basket 2.10 and install Basket 2.49 from attached deb:

sudo apt install libkf5activities5 libkf5crash5 libkf5dbusaddons5 libkf5service5 libkf5kiocore5 libkf5completion5 libkf5jobwidgets5 libkf5kiowidgets5 libkf5kiontlm5 libkf5notifications5 libkf5solid5 libkf5sonnetui5 libkf5textwidgets5 libkf5wallet5 libkf5globalaccel5 libkf5attica5 libkf5xmlgui5 libkf5bookmarks5 libkf5kiofilewidgets5 libkf5kiogui5 libkf5package5 libkf5declarative5 libkf5calendarevents5 libkf5newstuff5 libkf5notifyconfig5 libkf5plasma5 libkf5quickaddons5 libkf5plasmaquick5 libkf5plotting5 libkf5filemetadata3 libkf5kcmutils5 libkf5parts5 libkf5kdelibs4support5 kactivities-bin phonon4qt5

sudo apt remove basket basket-data

sudo dpkg -i ./basket_2.49~alpha+git20170813.26e8fe5-1_amd64.deb

2. I suggest NOT to start Basket 2.49 from your current account (because KDE5 migration module will move your basket data folder), but instead create a second account for now. You could use this guide: https://help.ubuntu.com/stable/ubuntu-help/user-add.html. Then you can start basket like this (substitute the new user name for "secondusername"):

sudo -u secondusername basket

It might fail with libraries error if I missed some dependency in the first step. Then you'll need to find a package providing that library, or just post the error text here and I'll help.

3. To return back to version 2.10, do

apt remove basket
apt install basket

Please let me know if anything is not clear in the steps above.