MiSTer FPGA Forum

Hi everybody,

can anyone help me understanding what is the problem of my MISTer?

I attached two videos. I'm using HDMI and the default background.

When it happens, normal reboot doesn't solve the problem, cold reboot does.
Thanks.

cold reset you mister please

breiztiger wrote: ↑Sun Sep 27, 2020 10:19 am cold reset you mister please

Yes it does solve the problem but then it happens again randomly.

Is it an hardware problem?

yes it happens randomly to all i think

breiztiger wrote: ↑Sun Sep 27, 2020 10:34 am yes it happens randomly to all i think

Can you please elaborate a bit more? Is it an hardware problem?

Monitor? SDRAM? HDMI port? MISTer itself?

mister is not make to change core "at the fly"

You are telling me that this happens frequently when someone change the core on the fly without doing a cold reset bewteen?

sorgelig talk about that ... you can search if you want to learn more about

Yes, it can happens, no problem, it's rare but it happens

sometimes a reset doesn't clear the memory completely, it seems related to a hardware bug in the DE10-Nano.
just do a full reboot and you will be fine.

Thank you, I was worried about an hardware problem.

I have multiple MiSTers and it happens to all of them. Like suggested above a power cycle or hitting the reset button clears it up.

It's HW glitch in FPGA. Currently there are no other solutions except reset or power cycle. Hybrid FPGA is not designed to reload the cores on the fly originally.

Thank you to everyone.