Arch Linux

Silverthorne

Member

Registered: 2015-08-30

Posts: 16

Ugly look and distortion in Qt4 apps with Plasma-desktop 5

Hi all.

Just noticed strange behavior of my Qt4 applications
Here it is how my qtconfig-qt4 looks like

http://i.imgur.com/MM3jyFO.png

So I am not event able to change theme to Breeze for Qt4 apps.

Here is another example, KTorrent, also very ugly and unusable

http://i.imgur.com/nMMUCql.png

Is there any way to fix this issue ?

Last edited by Silverthorne (2015-09-01 16:22:36)

VanillaFunk

Member

From: MA. USA

Registered: 2013-06-10

Posts: 396

Website

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

can you set the style to gtk+ in your Trolltech.conf file ? then set it according to the theme you want and then remove the gtk+ style line in trolltech?

here is a wiki on doing so if it might be helpful

https://wiki.archlinux.org/index.php/Un … plications

hope it helps

---

archx86_64 : awesomewm
https://github.com/dreemsoul

Remeber to feed the squirrels

Rog131

Member

Registered: 2015-08-23

Posts: 90

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

At here:

KTorrent: http://imgur.com/dq2icN1
Qt4 Config: http://imgur.com/gpvss6f

Something to check :

Is there any error messages if you launch an application from the terminal ?
What kind of system do you have ?

At here:

$ inxi -F

System:    Host: archfox Kernel: 4.1.6-1-ARCH x86_64 (64 bit) Desktop: KDE Plasma 5.4.0 Distro: Arch Linux

Graphics:  Card: Advanced Micro Devices [AMD/ATI] Barts PRO [Radeon HD 6850]
           Display Server: X.Org 1.17.2 drivers: ati,radeon (unloaded: vesa) Resolution: 1920x1080@60.00hz
           GLX Renderer: Gallium 0.4 on AMD BARTS GLX Version: 3.0 Mesa 10.6.5

Does the .xsession-errors have lot of error messages ? or strange error messages ?
Does the Xorg.0.log have errors ?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,435

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

If you want to use breeze or oxygen there is a shortcut to set all of Qt5 and Qt4 to the theme, Systemsettings ->  Workspace Theme -> LookandFeel

This issue looks also like it could be the openjdk7 resource leak, if you are using it consider switching to openjdk8

Last edited by V1del (2015-09-01 17:24:42)

Ekaradon

Member

Registered: 2014-05-31

Posts: 47

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

Strange, I also get this bug with some applications on KDE 5 when using several screens and after a while. It makes VLC not usable anymore, but also oracle VM VirtualBox, and also Spotify webview which become blank and blink...
I really do not know why or how. I can however reproduce the issue on a day, it just takes a random time.

Notice that I did not have these issues before the summer.

Last edited by Ekaradon (2015-09-01 18:21:05)

arojas

Developer

From: Spain

Registered: 2011-10-09

Posts: 2,313

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

Strange, I also get this bug with some applications on KDE 5 when using several screens and after a while. It makes VLC not usable anymore, but also oracle VM VirtualBox, and also Spotify webview which become blank and blink...
I really do not know why or how. I can however reproduce the issue on a day, it just takes a random time.

Notice that I did not have these issues before the summer.

This smells like the openjdk7 memory leak

Ekaradon

Member

Registered: 2014-05-31

Posts: 47

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

Oh! It would be nice if it fixes my issue! I am already testing it, I will give you a feedback. I do not understand why it has not been announced on archlinux news as it is really a major regression. Anyway thank you!

Silverthorne

Member

Registered: 2015-08-30

Posts: 16

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

It may sound strange, but appearance of QTConfig and KTorrent changed back to normal after I reverted my time format to US and re-logged in

Last edited by Silverthorne (2015-09-01 21:18:47)

Ekaradon

Member

Registered: 2014-05-31

Posts: 47

Re: Ugly look and distortion in Qt4 apps with Plasma-desktop 5

@arojas: I confirmed changing openjdk to 8 it solved my issue. So it is unrelated to the Silverthorne problem.