Hello! This is the first time I am writing to a Debian mailing list. Therefore I don't really know whether or not this is the right place for this mail. Please tell me if not. I want to report the following problem.
Last week I tried to install Debian in a virtual-box. Currently I use Debian 8.7 for running the virtual-box program. I managed to install Debian stable without any problems. Then I cloned the virtual-box and tried an upgrade to Debian-testing. I think, it worked. After a while I shut down the virtual-machine. When trying to reboot, it did not start properly. I just got some messages like 'Created slice User Slice of Debian-gdm.', 'Starting User Manager ofr UID 117.', and finally 'Started Daily apt activities.'. Then the virtual display just starts blinking. Nothing else happens. After three minutes or so the display freezes. Then I thought, okay, maybe the virtualbox program has got a bug. So, I downloaded the Debian-Testing-DVD-1 via jigdo-lite and copied it to a USB drive. I tried to install Debian-Testing on an old laptop, a Toshiba Satellite from 2009. Unfortunately I don' remember the exact model number. I had already installed Debian Stable without any problems on that laptop some months ago. The Debian-Testing installer worked fine and finally, it asked me to reboot the PC. After rebooting similar problems occured. There was a message about the graphics card and after 30 seconds the display started blinking. Nothing else happened. As I have written above these errors only occured with Debian-Testing. Debian-Stable worked fine on Virtualbox and the Toshiba laptop. So, I don't think there are some hardware problems. Now, the question remains, where to post this bug. I'd be glad at any help. Best regards, Michael Siemmeister
