@dankcushions

Yea that did the trick, thanks. But now it states error about gamelist.xml parsing, the file is missing. I need to investigate more about it.

Edit: Got it fixed, just deleted the gamelist.xml from the EmulationStation folder and it recreated new one.

@ghuleh By all means, do let us know if and how we can help with that process.

@zigurana See my edit above.

A "charger" is not a PSU and is not designed to supply a stable steady flow of power. This is fine when it comes to charging a mobile device, not when it comes to powering the PI. Get a dedicated hard-wired (not plug and USB cable combo) PSU, preferably an official Raspberry Pi one and say goodbye to the lightning bolt.

I'm going to post here the result of a few lines of commands, hoping that it will help to understand...

lsmod command return me this:
Module Size Used by
bnep 12051 2
hci_uart 20020 1
btbcm 7916 1 hci_uart
bluetooth 365780 22 hci_uart,bnep,btbcm
evdev 12423 2
joydev 9988 0
brcmfmac 292632 0
brcmutil 9863 1 brcmfmac
cfg80211 544609 1 brcmfmac
rfkill 20851 4 bluetooth,cfg80211
xpad 16908 0
ff_memless 5315 1 xpad
snd_soc_hifiberry_dac 3230 2
snd_soc_bcm2835_i2s 7480 2
bcm2835_gpiomem 3940 0
snd_soc_pcm5102a 2310 1
snd_soc_core 180471 3 snd_soc_bcm2835_i2s,snd_soc_hifiberry_dac,snd_soc_pcm5102a
snd_compress 10384 1 snd_soc_core
snd_pcm_dmaengine 5894 1 snd_soc_core
snd_pcm 98501 5 snd_pcm_dmaengine,snd_soc_bcm2835_i2s,snd_soc_core,snd_soc_hifib erry_dac
snd_timer 23968 2 snd_pcm
snd 70032 6 snd_compress,snd_timer,snd_soc_core,snd_pcm
uio_pdrv_genirq 3923 0
fixed 3285 0
uio 10204 1 uio_pdrv_genirq
uinput 9125 0
fuse 99603 1
ipv6 408900 34

amixer cset numid=3 0 return me amixer: Cannot find the given element from control default

cat /proc/asound/cards return me :
0 [sndrpihifiberry]: HifiberryDac - snd_rpi_hifiberry_dac
snd_rpi_hifiberry_dac

@pjft I guess I could try that. It was working fine till yesterday so version 4.3.1 was good for awhile.
What version are you thinking I should try?

I have been thinking about it and what might have happened but I don't know how to fix it is.
I had the videos playing for screen saver and the audio turned off for screen saver only. Let it run that way for a few hours every so often. Sometimes I would hear sound jump in and out. Like a noise from the other room. Then yesterday I noticed I didnt have any sound.
The reason I had it on so often and wasn't playing is I'm a designer working on a theme. Was wondering if this could be the source of the trouble?

So I am having this same issue, trying to move ROMS from my computer to the ROM folder in Raspberry Pi.

I followed the instructions above to expand the file system within raspi-config, rebooted a few times, but it still says I do not have enough room, despite having about 10GB of free space on the card. Any suggestions? Please be explicit as my knowledge of the Pi system is not too great.

Thanks for the help I got my USB HDD to be listed and accessable via my windows pc. the problem I'm encountering now is that the write speed to the hdd is only ~2mbytes/s . I wonder if there is way to fix this, this cannot be the maximum speed of the disk, something must be restricting or slowing down the transfer rate? thanks in advance.

Hey @kdretro, did you ever find a solution for the Reicast/Wii U Pro issue? My Wii U Pro controller was working fine up until I overclocked my Pi 3 and updated the Raspbian OS packages. Does yours freeze up when trying to configure the controller on Reicast? Mine hangs up right when I get to the analog stick part. Are you using the PI3 and have you overclocked it?

UPDATE
Just realized I don't think I ever had the Wii U Pro Controller working properly with Reicast. I'm pretty sure I was using my XBOX One Controller before.

@caver01 That's true, I am also investigating udev and xrender as I was told by a friend that a rule could probably be defined to handle that behavior. Indeed, since the portable screen will be connected internally (inside the box) to the raspberry pi, we can know for certain which HDMI port is associated to the screen and therefore differentiate it from the other one which would be assumed to be an external screen.

EDIT: Actually, I realize now that contrary to USB ports, HDMI splitters only duplicate the input display to two outputs in an identical way, so I am no longer sure udev understands it is communicating with two different displays.

@caver01 @rbaker I am also investigating using a USB Power Bank as a UPS (which I read from over at http://raspi-ups.appspot.com/en/index.jsp). Some models have smart charge features and are able to serve while charging and feature two USB ports (which is useful to provide power to both the Raspberry Pi and the portable screen).

Controlling the power drop seems feasible using a voltage diviser and an analog digital converter bound to the Raspberry Pi GPIO (one reference among others: http://raspi.tv/2013/controlled-shutdown-duration-test-of-pi-model-a-with-2-cell-lipo).

A quick Amazon search provides results that I believe could do the trick (like http://amzn.eu/fAd5fRV which:

is pretty cheap (~20 bucks), has a 16.75A capactity, provides 5V outputs, provides 3A max on each of its 2 ports,

I am guessing this could be used as a UPS.

Just as a side note I have seen several interesting projects providing UPS boards for the Raspberry Pi. But they seem focused on powering it through the GPIO (as far as I understand) and therefore do not seem very appropriate to me if I want to power a portable screen as well.

Another side note to say that I don't have any stakes at Amazon (and my links aren't sponsored), it just seems convenient to provide examples :)

EDIT: changed the example provided for a more suitable USB Power Bank

Thanks.

I just found out on the emulators forum which is in Russian that as of April 2017 the author had no plans to incorporated command-line launching of game image (iso) files. This means you can only launch 3DO games with Pheonix v2.8 via the GUI unless he decides to update the emulator to support it. He said it was a lot of work in his post. Its too bad because the emulator is the best one for 3do.

lr-4do has lots of bugs and many games are not worth playing IMO.

One way you could do it is to get an Capture Card (like an Elgato) and then Record it from your PC Screen.

@siliconpi Can you post the complete verbose log on a site like pastebin.com to look at it ?
Can you run zipinfo /home/pi/RetroPie/roms/mame-libretro/mame2003/roms/19xxh.zip from a terminal/ssh session to see if the zip ROM is accesible on the mountpoint ?
Can you try adding forceuid=1000,forcegid=1000,rw to the mount options, just to make sure the permissions are set ok ?

@matchaman An image is exactly that. A snapshot of the complete file structre including all data AND blank space. As was said, you would need to use a disk management tool to shrink the image and remove some empty space in order to fit onto a smaller card. Again, I've never done this myself.

@jonnykesh I haven't yet, I will try later on tonight

@lexus I don't think it has anything to do with RetroPie, it seems to me the first place you should check are your locale and keyboard language settings.
In the terminal enter sudo raspi-config to check and change your Localisation Options.

@edmaul69

Actually since I am playing with lib cores then there is no mame tab (ex. Xmen: The Arcade) as all the controls are from retroarch. So my question should be "how can I keep user 1 from controlling user 4 and vice versa". The keys for user 1 is only binded to controller buttons and user 4 is just keyboard buttons but for some reason I can still control both players (P1 and P4) at the same time on the keyboard. Is it by default that keyboard P1 and joystick P1 are always binded to player 1, like it's hard-coded?

Edit:
I wonder if it has to do with user 4 not having a device index (set to N/A "Port #3")

Edit #2:
Okay nevermind it's solved now. I somehow unbinded the tab key so I couldn't get the mame menu to appear. So I deleted the "default.cfg" file from "/home/pi/RetroPie/roms/mame-libretro/mame2003/cfg" to reset it back to defaults.

Once I was able to bring up the mame tab (menu) then I was able to fix my issue by assigning keys to a keyboard button that I would never use (ex. F12). So for each player I made sure it was only binded to the specific controller button or keyboard button. Player 4 was called retropad 4 as well (keyboard only).