2

I'm using Kubuntu 15.10 with Plasma 5 about 2 weeks.

It has been a few updates, but the problem is still, and it prevent to work normaly.

I don't know what problem is it, but this happens only with Qt apps.

enter image description here

enter image description here

So if i run open dialog from Firefox (which used GTK window?) or open Transmission app, they work normaly.

I tried check and uncheck of 'Processor microcode firmware for Intel CPUs'. Disable animation (ALT+SHIFT+F12). Select OpenGL render 3.1, 2.0, and so on.

I also tried diffirent version of drivers, currently i have Nvidia 352.41 (nvidia-352-update).

So there is my spec, maybe it's help a little bit.

  • Kubuntu 15.10 (64-bit)
  • KDE Plasma: 5.4.2
  • Qt: 5.4.2
  • Kernel: 4.2.0-18-generic
  • Processor: 4 x Intel Core i5-4590 CPU @ 3.30GHz
  • Memory: 8GB
  • Video: Nvidia GeForce GTX970

I really enjoy using plasma5 and KDE ecosystem, but this bug is very annoying.

Upd 17.11.15

This problem is also represented on Ubuntu 14.04.2 LTS.

enter image description here

Qt:5.2.1 on this ubuntu PC. So problem is more global then just KDE and Plasma.

P.s. sorry for my english.

  • I switch render engine on OpenGL 3.1 and restart(!) all software, and this looks like solution. I'll work tomorrow, and write here this as solution. – Niklan Nov 15 '15 at 19:15
  • Bad news, problem is still here. :( Switch to OpenGL doesn't help. – Niklan Nov 16 '15 at 12:19
  • 1
    See this: askubuntu.com/questions/693136/… – Daniele Napolitano Nov 18 '15 at 11:26
0

So yes, native render for Qt is solution of this problem. Steps i'm doing to fixing:

  1. sudo nano /etc/environment
  2. Add new line to the bottom of the file (second line for me) with this QT_GRAPHICSSYSTEM=native
  3. Save and exit by pressing: CTRL+O, CTRL+X
  4. Reboot the system: sudo shutdown -r

Thats it.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.