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Thread: Gnome shell not smooth. Problem with applying fix.

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hello.
installed first linux system - ubuntu 12.04 lts, , installed gnome-shell it. when started using it, noticed animation of windows' movement slow , not smooth. more specific, situations in problem occurs when drag windows across screen, or when press , unpress activities button.
have intel e6600 cpu, 2 gigs of ddr3 ram, , ati radeon hd 4830 graphics card.
started reading in forums similar problems , found promising soulution - add line "export clutter_vblank=none" file /etc/environment. when tried save file after editing it, didn't allow me. didn't allow me save file.
checked file's properties in "permissions" section, , says owner of file "root", , i'm not allowed change it.
of course logged in account (the account), , not guest account or something.
i'm new linux , don't understand how stuff works.
how edit line file , save it??
please me.

in linux os controlled root whereas users have limited access. means default user accounts have reduced ability affect (and screw up) os; not windows administrative accounts. in ubuntu can acquire limited root privileges through prefixing command sudo (for command line only) or gksudo (for graphics interface) , putting in account password. want can open terminal , type:

gksudo gedit /etc/environment

whereas gksudo gives root (superuser) privileges, gedit program lets see file, , /etc/environment file. should able save.


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Desktop Environments [ubuntu] Gnome shell not smooth. Problem with applying fix.


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