On Fri, 2014-07-11 at 16:57 +0200, Guus Snijders wrote: > I haven't tested it, but xhost seems a bit superfluous in combination with > gksudo. Doesn't gksudo take care of setting the X auth itself? It doesn't. [rocketmouse@archlinux ~]$ gksudo -u chuser qupzilla [rocketmouse@archlinux ~]$ xhost + ; gksudo -u chuser qupzilla access control disabled, clients can connect from any host QupZilla: 0 extensions loaded [rocketmouse@archlinux ~]$ xhost - access control enabled, only authorized clients can connect Regards, Ralf