[PROBLEM] Playback problem since update to Leia

[Don Pedro]

(23rd May, 2020 04:57 AM)Nachteule Wrote:  No idea. But would be probably better idea to ask on the Raspberry Pi forum, bc even Raspbian does not show picture on screen

Will do that additionally, sure!

Quote:And you tried both hdmi ports?

Yes! Both are inoperable.

Quote:Can you guarantee that your Pi4 is not broken?

As far as you could with a newly bought one! The strange thing here is that the raspberry 3 used before suddenly stopped outputting something on that TV as well. Plus they don't share a single bit of hardware, the Pi, the SD-card, the HDMI-cable, the power supply - all are different. That's where the TV came in, it's the only thing unchanged. But the raspberry 3 also does not show a picture neither on the TV nor on a monitor, whereas the control-fantec does so on the monitor, as well as different HDMI ports of the TV, so the TV *is* able to use the HDMI-ports. That's why I wrote "nobody's the culprit".
Will do an additional check of the raspberry 3 and 4 against another TV. Will also do a check of the raspberry 4 without its casing. It's currently housed inside an argon case, which has two possible causes, a) it extends the HDMI ports, b) the case I got does not contain the extension bolts for the extender PCB. This normally not an issue, but I realized that one of the bolts has electrical contact between the upper and lower PCB. At first glance you'd say both have nothing to do with it, as a) is done on a regular base and b) can't influence the HDMI-port as without the extension PCB there also is no connection. But as other possibilities run out you start grasping for the remaining stuff.
The problem here is that if both are broken (the pi 3 and the pi 4) and all three outputs are broken (the one HDMI port on the pi 3 and the two on the pi 4) there is reason to assume the TV did kill them (instead of assuming it happened by incidence). So every newly attached pi will get broken, too! This is despite the fact that the HDMI-port of the fantec did work correctly and did not get broken by attaching it to the TV (maybe it's more robust/electronically different). It's all a mess and I do not know how to proceed, namely in order not to produce any more expensive, electronic junk...