[xubuntu-users] restarting window server or possibly usb service remotely

[Dan Hitt]

On Sun, May 8, 2016 at 5:07 AM, Petter Adsen <petter at synth.no> wrote:
> On Sat, 7 May 2016 20:32:03 -0700
> Dan Hitt <dan.hitt at gmail.com> wrote:
.....
>> Occasionally after i lock the screen and come back after a few hours i
>> cannot get it to respond.
>>
>> The machine is alive, and i can ssh into from another host.
>>
>> But wiggling the mouse and pressing keys leaves the monitor pitch
>> black.
.....
>
> If you don't mind restarting your entire X session, you can try 'sudo
> systemctl restart lightdm.service'. You could also try to kill the
> screen locker process, I think Xfce uses light locker by default.
>

Thanks Petter!

So the problem came up again after i last wrote (i had to go do some
chores, and when i came back keyboarding and mousing did not bring
back the display).

So i tried your suggestion of restarting lightdm.

And it worked, so thanks!

I did lose my X state, but i don't think any other state.

This seems to indicate that lightdm is going into too deep a sleep, or
perhaps taking something to sleep with it that should stay awake.

If anybody has any advice about how to approach this kind of lightdm
problem, i'm all ears --- although i know next-to-nothing about
lightdm.

Thanks again everybody for all the suggestions.  They were all helpful.

dan