I was not able to solve the problem properly, so I made a workaround by using a EDID VGA-Adapter(Lindy EDID/DDC Adapter for VGA-Displays) .
On 2017-08-21 11:02, Wolfgang wrote: > Hi, > > I have an embedded device(/small pc) and I want to run Debian Stretch on > it. But I am experiencing a strange problem: it doesn't boot without > monitor. I created the following cronjob to verify if its > up'n'running(or not): > > @reboot root beep -f 300.7 -r 2 -d 100 -l 400 > > My first guess was: some weird BIOS-Setting. But I didn't find any weird > BIOS-setting. So I tried to run a different OS, and it booted up correctly. > > I also tried to use the Debian-Stretch-Disk on another hardware and it > boots even without a monitor. The problem seems to be a related with my > hardware. > > The device has intel-graphics: i915 > > I installed(without success) the following firmware/microcode: > firmware-amd-graphics > firmware-linux > firmware-linux-free > firmware-linux-nonfree > firmware-misc-nonfree > amd64-microcode > intel-microcode > > Does anyone have a clue? > > Thanks in advance > Wolfgang >
