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by onshi
Sun Jun 07, 2020 8:19 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

Re: How common are HDMI issues for RasPi 4?

Eager to resolve this, I had a pair of micro HDMI-to-HDMI adapters shipped quickly by Amazon. Result: success! And the video is beautiful.So, clearly the problem must have been with my original micro HDMI cable, even though it still works with my Asus tablet (itself the only other micro HDMI device ...
by onshi
Fri Jun 05, 2020 10:24 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

Re: How common are HDMI issues for RasPi 4?

Bad or inadequate power supply (using the HDMI ports requires additional power). Using a case that doesn't allow the cables to be fully inserted. HDMI adapter that doesn't pass the ground connection through. I'm using the black/grey "official case" and a pretty robust-looking 3A USB-C pow...
by onshi
Fri Jun 05, 2020 5:01 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

Re: How common are HDMI issues for RasPi 4?

To debug, create a clean Raspberry Pi OS image with the Raspberry Pi Imager. Unplug all USB devices, add hdmi_safe=1 to config.txt and connect the HDMI cable directly to the display. https://www.raspberrypi.org/documentation/configuration/config-txt/video.md This is the procedure I alluded to in my...
by onshi
Fri Jun 05, 2020 4:59 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

Re: How common are HDMI issues for RasPi 4?

I'd be inclined to think that the Pi4 was faulty in some way, OR that the cable you are using is not working. What resolutions/makes are the monitors that do not work? Yes, I want to eliminate the cable as a factor as well. This is a relatively unusual connector so I only have one cable on-hand. I ...
by onshi
Fri Jun 05, 2020 4:44 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

Re: How common are HDMI issues for RasPi 4?

One further point - I have ordered two additional micro HDMI cables to eliminate the possibility that my cable is to blame for the problem.
by onshi
Fri Jun 05, 2020 4:42 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

Re: How common are HDMI issues for RasPi 4?

Further to this, I have reviewed the following: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=5851 https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=58151 And implemented as many potentially relevant fixes as I can, without success. I see plenty of other posts here and around...
by onshi
Fri Jun 05, 2020 4:37 pm
Forum: Troubleshooting
Topic: How common are HDMI issues for RasPi 4?
Replies: 23
Views: 1838

How common are HDMI issues for RasPi 4?

Hello all, I unboxed my first Raspberry Pi 4 8gb last night and was surprised to find that it would not output HDMI to any of the three monitors or one HDMI TV I tried it with. I was even *more* surprised to find, after a bit of Googling, that this seems to be a very, very common issue with 4s. This...

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