retropie install gpi.sh removes audio for rpi zero 2w

[TheSurlyGent]

Sorry i am not very famialiar with the audio system, when i run this script i lose audio capability
wget -O - "https://raw.githubusercontent.com/RetroFlag/GPiCase2-Script/main/retropie_install_gpi2.sh" | sudo bash

[michaellandi]

+1. Verified that using retropie 4.8 + the safe shutdown script makes me lose audio too.

I've done a clean install and verified that audio works. Install the script, and audio no longer works.

[landerson128]

I've encountered the same issue running retropie 4.8 on the rpi zero 2w in the GPi Case 2W once installing the safe shutdown script for the GPi Case 2. I've gotten audio working again and here's what I found:

Modifying the /etc/rc.local to comment out the lines added by the script disables safe shutdown and audio returns. The lcdfirst.sh and lcdnext.sh scripts appear to be the culprit as they appear to me to be what's used to detect when the GPi Case 2 is connected and disconnected to the dock in order to switch between HDMI and LCD output. I was able to disable both of them from running and keeping SafeShutdown.py by doing the following:

• Comment out the sh /opt/RetroFlag/lcdfirst.sh& and sleep 1& lines in /etc/rc.local to disable the lcdfirst.sh script from running.
• Comment out lcdrunProcess = Process(target = lcdrun), lcdrunProcess.start(), and lcdrunProcess.join() lines in /opt/RetroFlag/SafeShutdown.py

[MrGoatastic]

In September 2024, Retropie has made a change from omxplayer to vlc player it might have a link.

i've a GPI case 2 for CM4. Fresh image of 4.8 has no sound until install safeshutdown script, after that, the splashscreen video lose it sound... if you upgrade the package via retropie_setup.sh script. it will switch the omxplayer default for vlc. then i lose video but splashscreen as video.

I've look and tested many thing to try to get it back to work but failed. i opened a ticket on retropie repo about that in hope they see the problem on their side.