When running applications such as "unetbootin" or "tuxboot",
you might get a blank window, instead of the actual application.
Even when running it through "gksudo", or having a decent polkit running (e.g. inside Gnome).
E.g.:
This is because these application use MIT_SHM (Shared memory), which for some reason does not work when running graphical applications as root, while being logged in as a regular user in X.
The solution is to disable MIT_SHM.
E.g.:
$ sudo QT_X11_NO_MITSHM=1 tuxboot
you might get a blank window, instead of the actual application.
Even when running it through "gksudo", or having a decent polkit running (e.g. inside Gnome).
E.g.:
This is because these application use MIT_SHM (Shared memory), which for some reason does not work when running graphical applications as root, while being logged in as a regular user in X.
The solution is to disable MIT_SHM.
E.g.:
$ sudo QT_X11_NO_MITSHM=1 tuxboot
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