Thanks for your answers! I am going to try the upstream repository in the evening.
Nevertheless, as written in my first mail, I got problems with installing Debian-Testing on my old Toshiba laptop. I just checked the model number. It's a Toshiba Satellite P300-1BB. Model No.: PSPCCE-01K001GR. Debian-Stable Jessie 8.5 worked fine without any problems during the installation. So I think the hardware is okay. I tried to install Debian-Testing on this laptop directly to the harddisk without virtualbox. During the installation there were no problems. But after the first boot, I keep getting these messages: [drm:radeon_pci_probe [radeon]] *ERROR* radeon kernel modesetting for R600 or later requires firmware-amd-graphics. kvm: disabled by bios Then the display starts blinking and nothing else happens. Can you help me with this? How to report this bug? -- Michael
