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Recently my PC cannot shutdown (Ubuntu 16.04). Each time I have to turn it off manually using the on/off button on the computer. Restart works fine.

When I try shutting down the usual way, the screen remains blocked as it will shut down in a few seconds. A violet screen with a little Central "ubuntu" word with 5 dots below it, four lit red, one lit white. Running sudo init 0 and sudo shutdown now have the same result.

However, I can restart and open the PC with Windows 7 and then shutdown regularly. What should I do?

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    Please describe what you mean by 'Everytime I need to make this manually'. -- I am thinking of the 'SysRq R E I S U B' manual method, Restart Ubuntu via keyboard and 'SysRq R E I S U O' to shut down. – sudodus Mar 13 '18 at 7:49
  • @sudodus fixed. – kouty Mar 13 '18 at 7:51
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    The on/off button of the computer makes a hard shutdown, which might cause corruption of the file system. It is much better to use the 'SysRq R E I S U O' method and get a graceful shutdown. (After using it a few times, you learn it by heart.) – sudodus Mar 13 '18 at 8:00
  • @David Foerster fixed. For sudo etc I can open a terminal but the keyboard is in Hebrew or upercases in English and I cannot switch language because the switch language icons disappeared from the desktop. – kouty Mar 13 '18 at 17:37
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    Alright, thanks so far. There are a host of possible causes. I recommend that you go through Shutdown does not power off computer and try what appears to apply to your situation; you can also take a look at similar linked questions on the right side of it. Please report back with any result that appears to lead to noticeable change during shutdown. Thanks. – David Foerster Mar 15 '18 at 0:06
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Emergency shutdown in a graceful way

  • Press both the alt and PrintScreen keys all the time and one of the R E I S U O keys one after another slowly.

  • If it is a laptop you might also need to press the Fn key like so:

    Press the three keys Fn and alt and PrintScreen keys all the time

    and one of the R E I S U O keys one after another slowly.

Emergency reboot in a graceful way

The corresponding system request sequence for reboot is similar.

O 'Off' is replaced by B 'Boot'.

  • Press both the alt and PrintScreen keys or

  • in a laptop maybe the three keys Fn and alt and PrintScreen keys all the time

  • The letter key sequence should be R E I S U B

See the following links for more details,

Restart Ubuntu via keyboard

en.wikipedia.org/wiki/Magic_SysRq_key

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  • @kouty, you are welcome :-) – sudodus Mar 16 '18 at 9:59
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Try using this in terminal

init 0
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  • I tried, without results, the result is the same as with standard shutdown – kouty Mar 13 '18 at 21:20
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Try this is in Terminal :

poweroff
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