SUMMARY KDE Plasma has lacking touch screen support. Ideally, with a touch screen, a single tap on the system menu should open the menu. However, a double tap is required--like the first tap moves the cursor and the second tap is the click of the mouse. This behavior is not limited to the system menu, of course, but is system-wide. STEPS TO REPRODUCE 1. Run Plasma on a touchscreen computer. 2. Use the touch screen. 3. Get frustrated :/ SOFTWARE/OS VERSIONS Kubuntu 18.04 KDE Plasma 5.12.8 KDE Frameworks ver. 5.44.0 Qt ver. 5.9.5 Linux kernel ver. 5.0.0-23-generic ADDITIONAL INFORMATION Computer: Lenovo Ideapad Flex 14-IWL
This doesn't match my experience at all. I have a touchscreen laptop and a single touch is mapped to single-click perfectly. Is that not what you're seeing? Is this limited to Plasma, or does it affect apps too?
This is a system-wide issue; absolutely everything is affected. For an example of exactly what happens, I will open the Application Launcher, switch to "Applications", click on "Settings", and open "System settings". Double tap to open launcher single tap to switch to applications double tap to open settings submenu double tap to open system settings Maybe this is because I have a slightly older version of Plasma. What Plasma version do you have?
If literally everything is affected, it sounds very much like a driver issue. Plasma doesn't actually handle input. I would ordinarily recommend filing a bug on the Libinput driver, but since you're using an LTS version of your distro, the package versions of everything are going to be tool old for anyone to actually debug (this is part of why the concept of the LTS distro is a cruel joke IMO). Is there any chance you can upgrade to Kubuntu 19.10 and see if it still happens?
I might be able to upgrade. Is it possible to upgrade by running the installation from a USB stick and running the installer? I'm researching, and if it's possible, I'll do it. P.S. Due to some restrictions, I can't just run an upgrade over the internet.
Hmm, not sure, sorry. You might try asking in an Ubuntu-specific forum.
I'll try that.
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I upgraded and that fixed it.
(In reply to computersemiexpert from comment #8) > I upgraded and that fixed it. I should say that I upgraded Kubuntu.