On my Ubuntu MATE 16.04, whenever I press shutdown, restart button, I get a message that at-spi-registryd.desktop program is not responding and I either need to wait for the program to finish or I could reboot/shutdown anyway (warns me that I may lose work). Why does this happen? How can I make the shutdown/restart process smoother ie. not see that message and restart/shutdown the normal way?

This is a screen shot of that message.

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    Check this: ubuntu-mate.community/t/… – JonasCz - Reinstate Monica Jun 29 '16 at 7:48
  • Thanks your link helped. I just disabled the executable /usr/lib/at-spi2-core/at-spi2-registryd using sudo-caja and everything is working properly. I wanted to know if there is any downside of not making the aforementioned file executable. – user562577 Jun 29 '16 at 8:51
  • No, the only downside is that some "Assistive technology" apps (such as screen reader or on-screen keyboard) may not work correctly. – JonasCz - Reinstate Monica Jun 29 '16 at 9:10

This seems to be a regression of this bug:


So, the workaround (provided you dont need assistive technologies) would be:

sudo mv /usr/lib/at-spi2-core/at-spi2-registryd /usr/lib/at-spi2-core/at-spi2-registryd.old

This renames the file for at-spi2-registry so that the system won't run it, but maybe you also want to reopen it on launchpad.

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What I did to "maybe have" fixed this problem was to use Caja as root to rename /user/lib/ and renamed the "at-spi-core directory (folder)" to ORGat-spi-core. That seemed to solve the problem so far. It may not been the proper way but it has worked so far.

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