Live Session in Lubuntu Desktop amd64 in Groovy Daily (archived)

hp 8200 elite sff (i5-2400, 8gb, nvidia quadro 600)
adjusted displays to match my setup; it "felt" different to what is common, don't know why that it sometimes, but subsequent testing of issues didn't create a problem (which it doesn't when it 'feels' different. I suspect it's how I place my two screens.. but it also felt like screens top/bottom were reversed when no change has been made.. but as screens are shared I maybe was thinking of a different box that uses the screens..)
pcmanfm-qt menus opened both screens etc (a bug that can occur), & like issues didn't occur
firefox; stream local news (not youtube) on both displays, window, maximized, f11 & fullscreen
media keys adjust volume, mute/un-mute etc
other user play, and experience good..
the panel is on my 'bottom' display, however menu opens on my 'top' (other) display

I used LEAVE->LOCK expecting the session to lock... but it only blacked screen & then returned to normal... :(
however I tried again later and it operated that time as expected, so I'll assume it was user/OP and try and remember to test again on another box/session.

this session went for some time, I had screensaver kick in, plus stated it looking for http://launchpad.net/bugs/1855220 (choppy issues) and didn't notice anything choppy (maybe these screens but a different box)... However after waking screensaver for a "preview" the session was not recoverable... news kept streaming so session was running.. but session appeared unrecoverable..

using ctrl+alt+F4 shut news up.. but screen did not change. black upper display still (it went black when I stopped xscreensaver preview, pointer visible on top display but won't move.. and bottom display shows a stuck flurry screen still).

I was unable to recover session, could not use a text terminal either and strangely he numlock/capslock keys weren't even changing the LEDs on the keyboard..

No mouse movement after I tried to end xscreensaver preview.
- the upper display had returned to black (flurry xscreensaver image gone where I was expecting the streaming firefox/news to return but no
- mouse pointer was drawn on upper display
- lower display stayed locked on a frozen flurry (xscreensaver) screen

I've machine (with SysRq REISUB) and will file bug from there, alas as session is lost the bug report will be near meaningless, but filed for this QA anyway.

hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)
this is the box with flurry issues - http://launchpad.net/bugs/1855220 (one blotches appear during flurry's operation which isn't nice..) xscreensaver is covering both screens though
adjust monitors to my setup, xscreensaver still covering both displays, pcmanfm-qt has menus on both screens :) , menu opening in correct place :) pcmanfm-qt isn't jumping around the screen on devices being clicked :)

menu->LEAVE->LOCK is working as expected this time :) tried many times (yuk flurry), but no hiccups like last session first time, also no frozen sessions when I tried to repeat what locked up the last QA test

I'll leave system running.. looking for issues, but stop logging details here unless warranted