Resolution not supported

Libretro Lakka
#1

This is probably more of a TV issue, but thought I’d ask if anyone had the issue here.

I have the machine connected to my TV, Lakka install. When I power on my machine, I see the BIOS startup, but then nothing, and then a message on my screen that says resolution not supported.

I don’t have this issue when connected to a PC monitor, nor either of my other TVs.

I can at least get into RA by changing video_fullscreen_x = “1920” and video_fullscreen_y = "1080 from their defaults. When I try to run any game, black screen and the error message.

The kicker here is that this did work before. It was about a week when I last played it and had no issues whatsoever.

I even tried a brand new live install on a USB with no previous setup and still no-go.

TV is a Samsung QN65Q7FAMFXZA with a firmware update completed in August.

Thoughts anyone?

#2

Hello, is your TV 4k?

1 Like
#3

Hi Demetris, it is indeed.

I was doing some testing, and my graphics card may be faulty. The reason I believe so is that when I just used the onboard/integrated video on the motherboard, I was no longer having issues.

I will be doing some further testing with another card in its place, but that’s where I am now. If you have any other suggestions, or want me to test anything in particular, I’ll be more than happy to do so.

#4

Samsung 4k panels have this weird behavior especially the recent models > 2017. Will switch out the panel after the bios is shown. I had to put in the drawer a perfectly working HD4870 after i switched to a 4k samsung panel my self, every other firmware update i did things were getting worst vs better. :slight_smile:

#5

Well, as it turns out, the graphics card isn’t bad. I tried it in my PC, and no issues. I tried a different card in this retro box build, and it worked fine.

Maybe that card (RX 560) can’t drive the 4K display for whatever reason (my PC doesn’t have a 4K monitor) even though it worked before.