suspend/resume on Lenovo X1 (regression from reports on wiki)

[Laura Marie Feeney]

>>> Gleb and Luara, could you try x11-wm/i3 for suspend/resume trick and check
>>> slowdown?
>>

x11perf data for twm are at http://www.sics.se/~lmfeeney/9.2-RC2

I used firefox and flickr.com as subjective test.  After several 
suspend/resume cycles, scrolling through pictures became noticeably 
slower.  I didn't notice any slowdown before this.  The *_after data are 
from this point.

The xperf11 results don't seem very consistent: Some tests run faster 
before and some after, hopefully the data will be more useful to an X 
expert.  The machine was idle (xterm and xclock only), but not in single 
user mode.

x11perf data for i3wm available shortly, the test takes ~3 hours on X1 
Carbon.

Laura