no signal

I'm having a weird problem that I haven't been able to resolve. We recently got an LG B3 OLED, and it seems to work great with an HTPC, except if it's been idle for a long time with the TV off (overnight, basically). When the TV turns back on, the HTPC display is just "no signal". The machine...

Hullo. I used to play on an RX 480 (as per title) and got a Vega 56 during Black Friday ( https://www.asus.com/us/Graphics-Cards/ROG-STRIX-RXVEGA56-O8G-GAMING/ ). Only got around to plugging it in yesterday, expecting it to not be too difficult to get running. No such luck. I have no signal...

Using my new 6th generation iPad, sometimes I get a "no signal" message while I am browsing or reading an online article. Normally signal strength on my iPad or iPhone is the maximum 2 rings + the dot. Other times it's only one ring or no signal. I can see a similar effect if I'm using my...