hotcorners - how to enable after sleep?

[Karl Auer]

Hi all

I use compiz on Ubuntu 14.01-1. As far as I am concerned, the rotating
cube, expo window spread and hot corners are the only things that make
Unity bearable.

Upon waking up after suspend, hotcorners are disabled. To get them back
I have to start Unity Tweaks and disable/enable them. Is there any way
to do that from the command line?

Compiz is pretty good while it's working. Unfortunately it often stops
working!

- compiz regularly slows to a crawl or even a stop. It's CPU usage
climbs to 100%. It can usually be recovered by CTL-ALT-F1 to a text
console, then ALT-F7 to return to X.

- sometimes upon return from the above (rarely) the screen remains black
except for the mouse. The mouse cursor moves in response to mouse
movements, and the cursor changes shape as it passes over (unseen)
display elements. Sometimes (mostly not) this situation can be recovered
by restarting lightdm, but at the cost of losing all open windows and
unfinished work.

- compiz sometimes locks up completely - not via either of the two above
situations, but from a  standing start, with no warning at all. It
*seems* to happen more commonly soon after returning from sleep mode.
Typically the mouse cursor still moves, but it doesn't change shape as
it passes over display elements. Icons don't highlight, and nothing
changes on screen - for example, the clock display doesn't update. The
system itself is not locked, just the display - the audio output from a
movie will continue for example, but the picture is frozen. Recovery
requires a remote login then a reboot or a restart of lightdm.

Any ideas on how I could improve this behaviour?

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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