Comment # 17 on bug 1196280 from dziobian

(In reply to Stefan Dirsch from comment #16)
> (In reply to dziobian from comment #13)
> > Is it then possible to force specific executables to always use the discrete
> > GPU? I don't have control over the environment variables passed to eg. the
> > web browser, since it is often opened from other programs.
> 
> I think this will work when you add the env. variables to one of these
> 
> ~/.profile 
> ~/.bashrc

I have tried that before, this enables it for all programs including Plasma,
and makes Kwin very unstable (horrible screen tearing)