screencast freezes

[Alex]

running ubuntu 17.10
it was a fresh install, i didn't upgrade to 17.10
not running in xorg

expected:
Press Ctrl+Alt+Shift+R to start recording what is on your screen.

A red circle is displayed in the top right corner of the screen when the recording is in progress.

Once you have finished, press Ctrl+Alt+Shift+R again to stop the recording.

The video is automatically saved in your Videos folder in your home folder, with a file name that starts with Screencast and includes the date and time it was taken.

actual:
i press ctrl+alt+shift+r, and nothing happens. no red dot appears. i press it again, everything freezes. music keeps playing. can't move mouse.
gtx 1080, i5-8400
i had chrome, sublime, some terminals, discord open
had to reboot physically

[Gunnar Hjalmarsson (gunnarhj)]

Thanks for your report. I can confirm the issue on Wayland (even if I succeeded to use the feature once).

However, it's not a docs issue.

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1731718

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Wolf Rogner (war-rsb)]

In my case, the machine hangs up completely

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]