I finally found a permament solution! For me, the way with xmodmap worked only till the reboot. As I fount out later the xmodmap is deprecated and exists just for compability. Well, here we go:
1) go to the xkb settings: cd /usr/share/X11/xkb 2) now execute the following: setxkbmap -print you'll have something like this: xkb_keymap { xkb_keycodes { include "evdev+aliases(qwerty)" }; xkb_types { include "complete" }; xkb_compat { include "complete+ledscroll(group_lock)" }; xkb_symbols { include "pc+us+ru:2+inet(evdev)" }; xkb_geometry { include "pc(pc105)" }; }; look at your 'xkb_keycodes' line, the 'evdev' is name of needed file. 3) as we are at ' /usr/share/X11/xkb': sudo nano keycodes/evdev now you have to change this line: <PRSC> = 107 to that: <PRSC> = 218 or whatever code xev returns for you. now find line like this: <I218> = 218 and change that to: alias <I218> = <PRSC> now save the file. 4) copy your output at the 2nd step and save this to a file, for example, /usr/share/X11/xkb/my 5) clear the cached compiled keymaps: sudo rm -f /var/lib/xkb/*.xkm 6) compile your keymaps: xkbcomp /usr/share/X11/xkb/my $DISPLAY (you may have warnings, that's ok, but you don't want to get errors) now try xev and press print screen, you shouldn't have the 'XKeysymToKeycode' string anymore. If so, reassign keys for screenshots in Ubuntu settings. By now you should be able to make screenshot with PrintScr key. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screenshot in Ubuntu. https://bugs.launchpad.net/bugs/1295994 Title: Unable to use Printscreen Button on Ubuntu 14.04 in GNOME Shell Status in gnome-screenshot package in Ubuntu: Confirmed Bug description: Hi, I am trying Ubuntu 14.04 and I noticed that Printscreen button doesn't work. I had no problems in 13.10. If I run "gnome-screenshot", or "gnome-screenshot -a" in a Terminal it says "Unable to use GNOME Shell's builtin screenshot interface, resorting to fallback X11. I noticed that the function works if custom shortcuts are set. Can anyone help? Thanks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screenshot/+bug/1295994/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp