I'm using opensuse Leap 42.1, KDE.

Today I was using chrome and I use Ctrl + + to scale up the content in browser, and somehow the window switched to desktop and everything in my monitor scaled up, when I switched back to browser, the content in browser was even larger, and my monitor can not display all of the system and only displayed a rectangle area eighth of the size or even less which moves along with the mouse, and everything was blur because it displayed something 400*300 pixels or so in a 1920*1080 monitor.

I thought it was just one time thing and will be okay after I logout login or restart, but I was wrong, I logged out and logged in, the bug was still there, I restarted and it was still there. I have no idea how to fix it, please help!

Many thanks, Li

Perhaps relevant is my experience with KDE neon Plasma 5.12. A program rescaled from 1366x768 to 1024x768 (I used Xorg login rather than my preferred Wayland login). It stayed that way after reboot, and system setting programs didn't change it back. I tried a lengthy recipe from askubuntu.com with xrandr that didn't work. But a one-liner with xrandr did work. The resolution became permanently corrected with this one-liner--ie, it stayed so after reboot. In Terminal (maybe after sudo -i though I don't think I used sudo -i first):

Code: Select all

xrandr -s 1366x768

Something I suspect may have happened is that you may have triggered the Zoom desktop effect, though I'd have expected that to reset when you logged out and back in. The default key/mouse bindings for that would be associated with the Meta key similar to how browser scrolling is associated with the Ctrl key.

You might also double-check the screen resolution and scaling settings in system settings.