Sun Jan 08, 2017 5:50 am
Sorry to resurrect an old thread, but this question does seem to come up quite frequently, given the number of Google hits on it. I am new to RPi, but have considerable PC experience. With my new RPi, Pixel booted just fine. Kali, however, would only give me a screen occasionally. I did troubleshoot the lack of a config.txt file, created one & used hdmi_safe=1 to get Kali into VGA mode through my HDMI to VGA adapter, but could get no other video modes to work (just a black screen). Another thread on these forums led me to:
#hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace> <rb>
#width width in pixels
#height height in pixels
#framerate framerate in Hz
#aspect aspect ratio 1=4:3, 2=14:9, 3=16:9, 4=5:4, 5=16:10, 6=15:9
#margins 0=margins disabled, 1=margins enabled
#interlace 0=progressive, 1=interlaced
#rb 0=normal, 1=reduced blanking
#The first three arguments are required. The remaining ones are optional. aspect defaults to 16:9 if not specified.
So
hdmi_cvt=1920 1200 60
got my Dell 24" running fine through the HDMI to VGA adapter. If this helps anyone else get their display up, then my time will be well spent.