I am experimenting with a RPI 3B in Kiosk mode. The RPI has a 480x320 LCD screen attached. The RPI is running Rasbian Buster image. The OS is fully patched.
I have a Qt UI program that should be the only UI present. The desktop manager's start bar/start panel is taking valuable screen real estate. I want to remove the desktop manager.
According to Rasbian docs, the OS provides the Pixel and the LXDE desktop. I removed the desktop manager, but the desktop is still present after a reboot. I seem to be suffering a disconnect.
Why do I have a start panel and desktop after removing the desktop manager?
Here is what a
apt has to say about LXDE.
$ apt list --installed | grep -i lxde lxde-common/stable,now 0.99.2-3 all [installed,automatic] lxde-core/stable,now 10 all [installed,automatic] lxde-icon-theme/stable,now 0.5.1-2 all [installed,automatic] lxde/stable,now 10 all [installed]
And then removal:
$ sudo apt-get remove lxde-core lxde-common lxde-icon-theme Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: lxde lxde-common lxde-core lxde-icon-theme openbox-lxde-session 0 upgraded, 0 newly installed, 5 to remove and 0 not upgraded. After this operation, 11.7 MB disk space will be freed. Do you want to continue? [Y/n] Y (Reading database ... 99056 files and directories currently installed.) Removing lxde (10) ... Removing lxde-core (10) ... Removing openbox-lxde-session (0.99.2-3) ... Removing lxde-common (0.99.2-3) ... Removing lxde-icon-theme (0.5.1-2) ... ...
And after reboot:
$ apt list --installed | grep -i lxde $ apt list --installed | grep -i pixel $
When I boot the device after removal, I still have this (but smaller):
(Image courtesy Raspbian docs).