I have my Raspberry Pi hooked up to an old Philips HD ready FlatTV. I have my XBOX360 working over the HDMI -> DVI cable, and it is using these settings:

1280x720
Breedbeeld (Widescreen)
DVI+A

I have been fiddling now with the config.txt file with mixed results, but none of them seem to really work. The best I have got now is this setting:

hdmi_group=2
hdmi_mode=0x55
hdmi_drive=2

With these settings, I get some text-mode bootup messages, but once the Pi is booted, the screen stays blank.

  • @goldilocks still nothing. I have to say though, the setting that worked yesterday also doesn't work today .... – Bart Friederichs Dec 18 '16 at 14:16
  • I just noticed the HDMI->DVI cable bit. I think if you look around here you'll find many people have had problems with them either simply because they draw power, or perhaps because of this more subtle issue: raspberrypi.stackexchange.com/a/45050/5538 – goldilocks Dec 18 '16 at 14:20
  • @goldilocks I do get the bootmessages, it just switches back to black after that. Only text mode is fine for my purposes. – Bart Friederichs Dec 18 '16 at 14:21
  • Okay, maybe someone will come along with a more magical solution...if you're getting inconsistent results and you've tried X, Y, and Z, you should really make more of an effort to explain that in detail in the question. Otherwise you are just going to get people repeating what's been said in the other ~30 similar questions (and they are most likely correct, since they all seem to boil down to those same few issues). – goldilocks Dec 18 '16 at 14:24

I do not know why this works or even has an effect, but the culprit was hostapd, when I start it with

service hostapd start

the image is gone. When stopped, the image appears again.

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