reboot window disapeard after screensafer(blackscreen)

[Jorma Spitz]

this bug is probably not in ubiquity, but you guys know better what packages ubiquity is using...

on a laptop with:
Processor: Intel Core i7-2860QM @ 2.5GHz, 8MB Cache @3.6GHz
Mainboard: Clevo P170HM GTX560M
RAM: 16GB (4 x 4GB DDR3 PC-1333 PIN200 Kingston)
Harddisks: 256GB SSD SATA-3 (Crucial CT256M4SSD2) und 1TB Sata 5400rpm (Samsung hn-m101mbb)

Steps I took:

made bootable usbstick in Win7 64 SP1 with "unetbootin-windows-578.exe" ... "md5sum ubuntustudio-12.04-dvd-i386.iso 1129bc01b85b3c1c714bd27f68f3f2f8 ubuntustudio-12.04-dvd-i386.iso"

start from the usbstick... made install process as usual... (Language: "Deutsch"; kb-layout: "Deutsch (Schweiz)", install method: 'something different'; ...)

the Laptop was not connected to power-supply... while installing i sometimes moved the mouse to avoid screensaver... while waiting for install to finish I made a phone call... screensaver got activated when I already could see the 'restart' Window where one have to put the 'restart now' button... when moving the mouse to deactivate this black screen, the Restart-Window disapeard (i could see it for a second or less). Hitting 'Enter'-Key doesn't worked, also not if I hit 'Tab' one or several times.... but was still able to change to tty2... (and change back as well)... and the message that the power of the Laptop is on low level got activated in upper-right corner (after the reboot-window disapeard)

so I saved partman and syslog before reboot...