@sugarfree FIXED IT
Turns out uninstalling redream does not clear the config files. manually going to opt/retropie/configs/dreamcast and clearing everything then removing and reinstalling redream though retropie setup has seemingly fixed it. redream menu now opens in game.

Latest Redream doesn't work on the Pi4 - see https://retropie.org.uk/forum/topic/35435/ for the cause. We'll have to wait until an update is made by the Redream author - keep an eye on the other topic.

GOT IT FIX !
so if anyone will update maybe it wont work .
so go to https://redream.io/download

download the retropie files and copy them to /opt/retropie/emulators/redream
and walla ! :)

Just as an update. Inolen has released a new build, 1132. This appears to work OK on my Retropie (Buster) build.

I installed it manually but I assume it will work to update from source through the Retropie menu.

Thanks all for your help.

Yes, game have vibration, i just tested Crazy Taxi (USA) and it's working. Redream menu doesn't look to have a setting for vibration. Do you have the same issue with lr-flycast ? What controller do you have ? If your gamepad have the ability to change between d-input and x-input then, try with x-input.

Try to reinstall the emulator and find the game from a different source.

@mitu I'm stupid. Somehow turbo mode was on and that's why there was no sound.
Sideloading the built-in SDL library doesn't help. But I'll set the export thing in the redream script. The underruns don't seem to affect the gameplay otherwise...
Anyway thanks for the help! Another little quirk is gone from my list. :D

@mitu This was the cause of my issues. More info here.
https://forums.raspberrypi.com/viewtopic.php?t=349070

My issue was also fixed by adding arm_64bit=0 to /boot/config.txt.

@windg Makes sense. I did fix the issue by making the resolution 640x480. It covered the entire screen. HOWEVER, it looked crappy and the aim was way off and it shot far to the side of the cursor in the light gun game.

@mitu I went to the redream site and downloaded it and placed it in the opt/emulator/dreamcast folder and it works great.

My system is still 4.7 which is probably why it doesn't show a redream binary after 2020 available. Anyway, the workaround fixed it. Thanks for your help guys.

@mitu Hi, and thanks for your reply.

Apologies for having not provided feedback sooner, not normally my habit to be ill-mannered. I had to purchase a SATA to USB adapter so I could boot from my SSD with the pi removed from the case, then we had a family wedding ...

Anyway, you're absolutely right. With the case taken out of the equation, and the SN30 Pro connected directly to a USB port on the pi, ReDream launches fine. So, as you said, must be an issue with the USB port on the NESPi4 case.

As I say, I do have a different controller, also from 8BitDo, which doesn't experience the same issue. Possibly because that model has upgradeable firmware? So I'll most likely buy another one of those, one which colour matches the NESPi4.

Anyway, thanks again for the solution.

@lostless Thanks. I actually figured it out. There's a custom config setting on the bottom left. If you select it for every game, it won't affect others. Just never noticed it before!

@Crush said in Redream on x86_64:

@sleve_mcdichael would it still help you if i test that now that @BuZz will fix the tags?

Buzz will probably take care of it but it might get you up and running sooner if you don't want to wait for the fix to push through. I think 64bit is probably is the right flag to use here; looking at the other modules it's only used a couple of times, but it is used outside this particular module, while x86_64 is not (not as a module_flag, anyway. Its use for other things like as a platform identifier in this same module is still fine, I think.)

pi@retropie:~/RetroPie-Setup/scriptmodules $ grep -rni . -e module_flags | grep -e 64 ./supplementary/splashscreen.sh:16:rp_module_flags="noinstclean !all rpi !osmc !xbian !aarch64" ./libretrocores/lr-dolphin.sh:18:rp_module_flags="!all 64bit" ./libretrocores/lr-kronos.sh:18:rp_module_flags="!arm !aarch64" ./libretrocores/lr-uae4arm.sh:18:rp_module_flags="!all arm aarch64" ./libretrocores/lr-mupen64plus.sh:18:rp_module_flags="!aarch64" ./libretrocores/lr-mupen64plus-next.sh:18:rp_module_flags="" ./emulators/mupen64plus.sh:18:rp_module_flags="sdl2" ./emulators/redream.sh:17:rp_module_flags="noinstclean !all gles31 aarch64 x86_64" ./emulators/np2pi.sh:17:rp_module_flags="sdl1 !all rpi !aarch64" ./emulators/dolphin.sh:18:rp_module_flags="!all 64bit" ./ports/solarus.sh:18:rp_module_flags="!aarch64" ./ports/love.sh:18:rp_module_flags="!aarch64" ./ports/love-0.10.2.sh:18:rp_module_flags="!aarch64"

@BuZz Thanks a lot. In the end i went for flycast since all posts went that direction.

@quicksilver
Do you have a link to the the latest redream update that works with WINCE and can be downloaded with my retropie?

@derekr resizing to 512x512 seems to have fixed a lot of the issues. Another one that I came across was that the ".PNG" extension of a couple of my files was capitalized. Make sure that your files use the lowercase ".png" extension.

@dankcushions

That was is it! Used the sub folders. As always, Thank you!!