I’ve just acquired a Pi 4 and was interested to see how well it would work with MODEP.
I downloaded the latest MODEP image and then did an update & upgrade on my PI 3 in the hope that it would then boot on the Pi 4 but sadly not.
Any thoughts on how easy it would be to get the Pi 4 running with it?
Thanks
Ian
Try doing the part that starts with ‘We do not recommend upgrading an existing Stretch (or earlier) system to Buster’ under ‘How do I get it?’ section in this article.
We’ll be looking into upgrading the OS images for RPi4 in the coming week.
Oh dear! Ah well - worth a try. Will look forward to your upgrade release - thanks.
On the plus side the RPi3 seems to be working happily on Buster!
I’d forgotten how good the performance is with the 3 - I might even save the 4 for another project as the 3 seems more than capable for my MODEP needs.
The only thing I’ve noticed is that very occasionally the CPU shoots up to 100% and the audio glitches momentarily. Maybe that’s a side-effect of the Buster upgrade…
BTW Have now reverted to your download image (with no subsequent updates) and solid as a rock on RPi3 
Hi.
Any update in regards of an image for the Pi4?
Hi, the ‘real-time’ config 4.19 kernels are still not stable enough to update the images.
This Real-Time Kernel works perfectly for me with Buster https://www.raspberrypi.org/forums/viewtopic.php?t=250927
Maybe someone can adapt the build-scripts?
It works well on RPi4 itself, but not on RPi 3 or 2.
Are there any problems providing 2 images?
I’d be happy with a 32-bit 2/3 image and a 32/64-bit RPi4 image. Trying to modify the build scripts now, but still failing a little.
Yes.
Maybe just temporarily.
There are many RPi4 owners now.
Any update on this?
My guess is that they’re 100% busy with the launch of Midi-Hub and MODEP is on a backburner now. I’m quite ok with it, as I also want them to really hit the Midi-Hub out of the ballpark, but I sure would appreciate some official word on this, as they kinda promised a new fixed image ages ago in one thread. 
Yeah. I bought a Pi 4 in August just for modep because of the promise “Currently Raspberry Pi 4 is not supported. New release is coming soon!” But theirs and mine interpretation of “soon!” differs some. My Pi 3 went dead while running modep.
The Raspberry Pi 4 OS and the real time kernel were not yet stable enough when we took a stab at building the new OS images. We wouldn’t want a new image to be a downgrade from the previous version. Only just recently the real time kernel became able to boot successfully on all target Pi versions, but we do have a lot of critical work planned already (and the Pi 4 as for everyone else was released as a big surprise), so fitting in around a month worth of OS work we’d like to do is not possible. Keeping this in mind, we’re looking for someone to help us out with building the new versions of the OS images.
If anyone would like to take this on themselves, you may find existing MODEP generator scripts here: https://github.com/BlokasLabs/modep
Thanks for the update! 
For those that want to play with the Mod stuff on Raspberry Pi 4, it isn’t very difficult to get working.
On a Pi 4 running Raspbian, I cloned mod-host and mod-ui from the mod github repository, built and installed them, and it just worked with the lv2 plugins I had installed from guitarix.
Would you mind posting a very short walk through of the process, please?
Thank you very much in advance.
Sure - I’ll try to write something up.
Hi,
with the newest Patchbox image and a new RPI4 I do not get any USB port, mouse & keyboard to work.
If I do “sudo rpi-update” the USB ports and USB devices are working fine with the updated kernel 5.4.51-v7l+.
I’ll get the Pisound in a few days and because the setup via ssh is working I’m looking foreward to use everything as intended but of course working USB ports are desired.
I had no success to use a different compiled kernel - via this description:
https://madskjeldgaard.dk/posts/raspi4-notes/#install-a-real-time-kernel
I had succes to compile and boot this kernel but I assume the kernel has to be compiled in regard to MODEP?
Is it possible to use a different kernel with Patchbox/Pisound and if so how to do it?
@Giedrius these MODEP generator scripts you are writing about here:
is there more information about the usage and/or the kernel build process in general?
Could using this rt patched kernel 5.6 work? :
https://mirrors.edge.kernel.org/pub/linux/kernel/projects/rt/5.6/patch-5.6.19-rt11.patch.gz
https://aur.archlinux.org/cgit/aur.git/tree/parameters.patch?h=snd-usb-audio-lowlatency-dkms
links found here:
https://www.raspberrypi.org/forums/viewtopic.php?t=250927
cheers