17.10 has problems with embeded intel grafi

[robert at redcor.ch]

hi there,

when i try to start gparted on a freshly installed ubuntu 17.10

i get:
(gpartedbin:1515): Gtk-WARNING **: cannot open display: :0
Removed /run/systemd/system/-.mount.
Removed /run/systemd/system/run-user-1000.mount.
Removed /run/systemd/system/run-user-121.mount.
Removed /run/systemd/system/tmp.mount.

trying to start synaptic creates a coredum

when i run

susanne at alessia:~$ lspci -nnk | grep -iA2 vga
i get:

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd 
Generation Core Processor Family Integrated Graphics Controller 
[8086:0102] (rev 09)
	Subsystem: Intel Corporation 2nd Generation Core Processor Family 
Integrated Graphics Controller [8086:2002]
	Kernel driver in use: i915


can anybody give me an idea, how to fix this?

thanks
robert