@BuZz which was my first thought however I installed the original 4.6 that I had on file from way back when.

Don't know too many 3b+ that wont run 1500 with 1-2 overvoltage with a pi4 power supply

for N64 emulation I had this unit running stable all the way up to 1575 with the ice tower so from a hardware point of view doesn't make sense

@razielus said in Bluetooth usb dongle not powered after reboot.:

Built From: Darish Zone Retro Machine 512GB

We don't support 3rd party images here in the forums.

Use the image from retropie.org.uk/download and run an full update (OS and RetroPie packages), then try again and see if the dongle is detected after reboot.

@yfzdude Just got it today, works like a charm! Thanks!

@OldSchool Did you research if this is actually necessary? I used my 250 GB Samsung EVO 840 connected with an SATA-to-USB adapter to one of the USB2 ports of my Pi 3B (without +) for over two years without any problems, and now its connected to my new Pi 4B Rev 1.2 via USB3 for a month, again without any issues.

What problems exactly do you expect and where did you learn about them?

edit: I should mention that I also had/have a PacDrive LED controller for my 18 illuminated buttons and a wireless Mayflash Wii-U Pro gamepad adapter connected to the USB ports of both of my Pis, all of them without external power. The only somewhat funny "issue" I noticed is that the buttons flicker ever so slightly when the ssd is being accessed. 😊

@jediknight36 https://retropie.org.uk/forum/topic/12762/under-voltage-warnings-on-retroflag-nespi-case-best-power-supply/22#

If you get the lightning bolt popup without the case, then you also need a better power supply.

@Emmuss
From the command prompt

List all USB devices
lsusb

cat /proc/asound/modules

Set "card #1" as the default audio device
sudo nano /etc/asound.conf

pcm.!default { type hw card 1 } ctl.!default { type hw card 1 }

Disable HDMI audio
sudo nano /boot/config.txt

#hdmi_drive = 2

RetroArch audio fix
/opt/retropie/configs/all/retroarch.cfg

audio_device = "<name of USB audio device>"

Test audio
aplay -l

More info here:
https://learn.adafruit.com/usb-audio-cards-with-a-raspberry-pi/updating-alsa-config