Unless you're running under X/Desktop/Wayland, there's no control over the which display comes 'first' at runtime. You can use config.txt to enable/disable the LCD (is it a DSI display ?) or HDMI, but that requires a reboot.

@mitu and @Thorr69

I found the TV setting. Thank you very much its perfect. Will also test out the cmdline.txt method since that setting was not easy to find on the TV!!

@Breeliance said in Screen priority:

Wouldn't there be a way to mirror the output so both Screen show the same picture at least :x ?

As I said, you need to run in a desktop environment, from which you can start a screen configuration utility and set-up the multi-monitor configuration (mirroring, extension, etc.).

@mitu said in Raspberry pi screen not working:

hdmi_cvt=800 480 60 6 0 0 0

Wow! Now it's working great! Thanks.

I had tried all other options except

hdmi_cvt=800 480 60 6 0 0

@franklesniak said in How to Set the HDMI CEC Name After Deprecation of the cec_osd_name Parameter?:

I don't believe this works anymore. So my question is: how do I set RetroPie's HDMI CEC display name as I was previously? Is this possible?

I guess depending on the utility used, there should be an option for the 'osd display name', for instance cec-ctl has it with the -o parameter.

@umxp02 Hello thread from long ago :)

I ended up moving to Batocera with my Pi 4 and had no issues with screens at all. I eventually got a Pi 5 for Batocera.

My Pi 4... I repurposed it to run Plex, and don't need a screen since I can control it from my Mac.

Yeah this issue was a brain buster, so I'm happy I moved on.

thanks. i actually just did that and it works - shame as there appears to be a slightly difference between an older 3B and recvently bought 3B - so I cannot just use the same image of RetroPie/Emulation Station - just means I have to set up everything again :(

Thanks for your help.

@thisisnotdave said in Retropie on Khadas Edge 2 running Armbian can't get sound in games to work over HDMI:

Is there a way to supress the VolumeControl::getVolume() - Failed to get volume range! error I see every time I launch a game?

Change the Audio Device setting in EmulationStation's Audio menu to Master or PCM and this should get rid of the warning.

@retropieuser555 that's absolutely brilliant - thank you so much!

It appears that the original installation was done in Linux for some reason, so at least this way I can have a fiddle around and try to learn how it all works :)

Thanks once again - I'll get right on it.

@mitu Have never tried it, but as boot/config.txt options can be set per display-port (0/1) and at least if kms is used instead of fkms display_hdmi_rotate should be worth a try - but I am not sure what's nowadays status is in regards of retropie & kms as the video driver.

@mitu said in Display frontend on VGA666 CRT instead of HDMI with Pi4 and KMS:

Thanks for taking the time to answer!

I'm surprised this configuration worked with fkms, but I think it's no longer going to work on kms alone. I've seen your - similar - post on the RPI forums, the definitive answer if this configuration is supported should come from a RP engineer (6by9 is their expert on this).

Yeah, that's the first place I asked. I was hoping it was some stupid mistake on my side.

EDIT: one thing to note, the RetroPie image is currently based on the legacy RaspiOS buster version, a lot of work has been done on the pure KMS driver on the current Linux kernel. You can get the current RP Linux kernel with rpi-update (not recommended) or by manually installing RetroPie on current RaspiOS bullseye (still in beta at the moment), my recommendation would be the latter.

I did try a rpi-update as an extreme attempt, ready to start from scratch. Unfortunately the situation didn't change.

The other idea is to have a second Pi driving the marquee, which is a solution I have mostly working with one last annoying quirk that I wasn't able to iron out yet.
It would be great to do everything from one device though.

I guess you're using the RetroArch master for the switchres support added after v1.15 ?

Yes that's correct. And it seems to work great, possibly much better than the "old" Pi3-style runcommand trickery based on fbset and vcgencmd.

Please provide the rest of the info requested in https://retropie.org.uk/forum/topic/3/read-this-first.
Add the config.txt file content between code tags (```).

There's no extra commands in EmulationStation or otherwise that changes the resolution on a stock RetroPie installation. You can change the emulator resolution via from the runcommand launch, but that's about it.

If 240p set via config.txt works, then I don't see why the same method for 480i wouldn't work. How are you setting the 480i resolution for your display - via config.txt or other method ?

Please also add the info asked in https://retropie.org.uk/forum/topic/3/read-this-first to your post (RetroPie version, devices, etc.)

@Mayonaise said in audio bugged out:

is there any alsa applet for panel?

Yes, I think it's the lxplug-volume package.

audio config always says enable pulseaudio

Are you using the latest RetroPie-Setup version ? Did you run an update after installing from the RetroPie image ?