[ltp] Getting screensaver to ignore mouse movement?

[Matt Graham]

On Tuesday 06 March 2007 21:18, after a long battle with technology, 
Richard Neill wrote:
> Has anyone else had the problem where the infinitesimal drift
> (about 0.3 pixel/minute) of the trackpoint causes the
> screensaver/DPMS to never activate?

In general, when I've seen the Trackpoint's drift for more than about 2 
seconds, I've seen the firmware autocorrect for the drift pretty 
quickly.

> I have never seen this problem on any thinkpad except for one [...] 
> Is there a workaround, eg to only make the screensaver care about the
> keyboard?  I'm using the KDE screensaver

There's nothing in the KDE screensaver options for this.  You may have 
to hack the code or write something yourself using xscreensaver as a 
base.  Most of the time, people want mouse movement to cancel a 
screensaver.

> I don't mind manually activating the screen-blanker, or writing a
> script to monitor the relevant line in /proc/interrupts for the
> keyboard, then triggering `xset dpms force off`. But of course, the
> mouse movement would wake it up again!

A script that polled /proc/interrupts every 5 seconds might do the trick 
if the mouse pointer were positioned in the corner where it's drifting 
naturally.  If the drift direction changes, you may be out of luck 
unless you hack X itself--which is a pretty hairy task.  HTH anyway,

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