App freeze with SFML 2.1

[Kalero]

Hello,

my app is freezing for some time on my laptop with a Mobility Radeon HD 5430/5450/5470. The window content updates only every ca. 10 seconds. I'm programming under ubuntu 14.04.
on my desktop pc it works perfect. with the sfml examples is the same problem. I have install the newest driver from AMD. a test with glxgears runs perfect and the examples from SFML 1.6 run perfect too.

Is their a known issue with SFML 2.1 on the radeon card and maybe a solution?

thanks and sorry for my bad english.

[Kalero]

Hello,

I test the current state from github and with this I don't have that problem.

[eXpl0it3r]

Try a different driver. GPUs and Linux often don't play well...

[Kalero]

Try a different driver. GPUs and Linux often don't play well...

I already tested the open source driver, AMD driver from ubuntu package source and the current driver from AMD website.
The problem is only with the this SFML version: http://sfml-dev.org/download/sfml/2.1/

SFML 1.6 and the up to date version from github and all other opengl apps (which I have tested) works fine.

[eXpl0it3r]

If the update version works then everything is okay. If you want to know what might have fixed the issue, feel free to look through the commit history.