making KDE WM read my .xprofile

[Sivaram Neelakantan <nsivaram.net@gmail.com>]

For some reason that I haven't figured out yet, my screen estate is
not used fully by Debian and I had some black bands around the edges
of the WM.  Reading around, I found a combination of gtf and xrandr
with a rather painful way of discovering that my screen is 1366 x 652
in size.

 xrandr --newmode "1360x652_60.00"  71.28  1360 1416 1560 1760  652 653 656 675  -HSync +Vsync
 xrandr --addmode Virtual1 1360x652_60.00
 xrandr -s 1360x652_60.00
 
I plug this into a .xprofile and chmod +x it and reboot, my screen
doesn't reset.  if I manually execute .xprofile, the screen gets
changed to what I want.  Where do I start looking to fix this such
that it gets set upon login into kdm?  There is a .xsession-errors
file but that didn't seem to have anything interesting.

I used a live cd KDE install that is now upgraded to Jessie and so I
boot into KDE  desktop upon login.

Appreciate some pointers to debug this.

 sivaram
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