Raspberry Pi 4 Thread - general discussion

[Gavinmc42]

Also, perhaps you should have read the documentation on the new peripheral alt settings: https://www.raspberrypi.org/documentati ... minary.pdf

Is there any register documentation yet for all these nice new i2c, uarts etc?
They are going to be real handy especially for those big robotics projects.
Check the Linux driver sources? Now or later?
Hmm, later?

4GB versions? Need two to replace the boat anchors
Not even Xmas so I cannot ask Santa
So get two 1GB ones now 2 x 4GB later?
How many Pi4's do I need?

[jamesh]

DISABLE WIFI/Bluetooth - Or Better still is there going to be a version with no WIFI/BT Chip ??

Is there a WIF/BlueTooth Hardware switch ?

I know you can disable this with software, but when thats done is the chip OFF ??

Let me get this right. We release a new Pi, with loads of extra features, and amazing specs, at an amazing price.

And for your first post you want to turn stuff off or remove it completely? Stuff that us engineers have spent years of our lives on.

Sometimes, I just despair.

Still, I guess it happened on every single release we have done - I should be getting used to it by now.

[scotty101]

Are the DPI GPIO pins still the same?

Check the preliminary datasheet. Looks like they are the same
https://www.raspberrypi.org/documentati ... minary.pdf

[pudding]

What an amazing engineering achievement! Great to see the usual well thought out evolution of the RPi. I'm glad the Videocore is still part of this SOC too. I assume full backwards software compatibility for Videocore/dispmanx support? Is 3D MVC support still in the chip?
Was concerned about it still only having the SD for storage with performance issues but hopefully booting to USB3 SSD will resolve this.

[jamesh]

Also, perhaps you should have read the documentation on the new peripheral alt settings: https://www.raspberrypi.org/documentati ... minary.pdf

Is there any register documentation yet for all these nice new i2c, uarts etc?
They are going to be real handy especially for those big robotics projects.
Check the Linux driver sources? Now or later?
Hmm, later?

4GB versions? Need two to replace the boat anchors
Not even Xmas so I cannot ask Santa
So get two 1GB ones now 2 x 4GB later?
How many Pi4's do I need?

Can you PLEASE stop these brain dumps. If you have questions, please ask them. Questions that we cannot answer include trying to figure out what is going on inside your head.

[Imperf3kt]

hi,

Will this new(Rpi4) product support Windows 10?

If you mean Windows 10 IOT as is available for the Pi3b etc, not until Microsoft updates it to support the new hardware.

If you mean Windows 10 desktop for x86 PC's, maybe via emulation but you're on your own in getting it to work.

@Jamesh
Don't despair, I assume people want to turn stuff off in order to use less energy.

[jdb]

Also, perhaps you should have read the documentation on the new peripheral alt settings: https://www.raspberrypi.org/documentati ... minary.pdf

Is there any register documentation yet for all these nice new i2c, uarts etc?
They are going to be real handy especially for those big robotics projects.
Check the Linux driver sources? Now or later?

Kernel source should be available shortly - new peripherals are mostly copy-pastes of the old ones (with a few fixes).

[jamesh]

What an amazing engineering achievement! Great to see the usual well thought out evolution of the RPi. I'm glad the Videocore is still part of this SOC too. I assume full backwards software compatibility for Videocore/dispmanx support? Is 3D MVC support still in the chip?
Was concerned about it still only having the SD for storage with performance issues but hopefully booting to USB3 SSD will resolve this.

Should all be backwards compatible. Note, that MP2 and VC1 HW decode support has been removed - this can now be done in software and therefore needs no licence key.

3D MVC? What is that?

SD card should be about twice the speed.

[dorbbobr]

HEVC hardware decode supports 4kp60, 10-bit.

That's an extremely important clarification that imo should be emphasized in official specs, a lot of folks will use RPI4 as media streamers and HDR capability is an essential feature.

[scotty101]

Let me get this right. We release a new Pi, with loads of extra features, and amazing specs, at an amazing price.

And for your first post you want to turn stuff off or remove it completely? Stuff that us engineers have spent years of our lives on.

Sometimes, I just despair.

Still, I guess it happened on every single release we have done - I should be getting used to it by now.

Welcome to the internet. There is always a hater/troll.
The sales figure of the Pi alone are a testament to the fact that you guys are doing the right things.
Block them and move on.

[mikerr]

Fantastic news, got my 4GB order in earlier !

Looks like everything I wanted is there:

- Faster CPU
- Proper gigabit ethernet
- USB3
- Oodles of RAM
- Buster

Struggling to find minor cons, but:

- No IR (but cheap to add on)
- No SATA ( USB3 - SATA is cheap though)
- Single CSI (so compute module still needed if you want dual cameras)
- MP2 hw codec gone (sw fast enough)
- No USB/netboot at launch (but added later with user update to the EEPROM)

Nothing to moan about here, just waiting for delivery now !

[Heater]

Ha! I disable WiFi and such with a soldering iron. Or just side cutters!

Well done everyone. The Pi 4 is great news.

Mostly the same, but mo' better, just how we like it.

[jamesh]

Mostly the same, but mo' better, just how we like it.

Under the skin, much is different. This is the biggest HW change in Pi history.

[LTolledo]

Damn! Am late!.... just saw it on Youtube just a while ago...

oh well, now the hard part is the "waiting game" for it to be available at my favorite stores.....

time to update this desktop again.....

[tpyo kingg]

Under the skin, much is different. This is the biggest HW change in Pi history.

Exciting. I guess there will be some general-audience blog posts or articles going into the details when the time is right.

Can I ask if HDMI sound would be able to play independently via each HDMI port?

[glynallinson]

DISABLE WIFI/Bluetooth - Or Better still is there going to be a version with no WIFI/BT Chip ??

Is there a WIF/BlueTooth Hardware switch ?

I know you can disable this with software, but when thats done is the chip OFF ??

Let me get this right. We release a new Pi, with loads of extra features, and amazing specs, at an amazing price.

And for your first post you want to turn stuff off or remove it completely? Stuff that us engineers have spent years of our lives on.

Sometimes, I just despair.

Still, I guess it happened on every single release we have done - I should be getting used to it by now.

I love it, funniest response ever.

[Heater]

jamesh,

Under the skin, much is different. This is the biggest HW change in Pi history.

I have no doubt about that.

Don't care.

Same form factor, same mounting holes, same GPIO, same power requirements, same .... looks like I'm going to be very happy it does not break anything I currently do with Pi, whilst being even more happy I can make use of all the mo' better features.

Well, I do care, changes in what we don't see make what we do see possible.

[Alex.]

Wow, really impressive!

There's a detail I don't understand: you said it's Bluetooth 5, but according to specs the CYW43455 is only 4.1. Is there a new unannounced chipset release that supports 5?

[jdb]

Under the skin, much is different. This is the biggest HW change in Pi history.

Exciting. I guess there will be some general-audience blog posts or articles going into the details when the time is right.

Can I ask if HDMI sound would be able to play independently via each HDMI port?

As of right now, HDMI audio and CEC are single-head (so one port will do both CEC and audio at the same time). You can select which port gets audio/CEC through config.txt.

At some point we may update the alsa driver for an added playback route so you can swap it at runtime.

[jamesh]

jamesh,

Under the skin, much is different. This is the biggest HW change in Pi history.

I have no doubt about that.

Don't care.

Same form factor, same mounting holes, same GPIO, same power requirements, same .... looks like I'm going to be very happy it does not break anything I currently do with Pi, whilst being even more happy I can make use of all the mo' better features.

Well, I do care, changes in what we don't see make what we do see possible.

We do care about backwards compatibility. The dual monitor support was awkward!

[pi3g]

Concerning the possibility of Windows on the Pi 4:
There is a version of Windows for ARM CPUs, which even has x86 emulation built-in. Meaning you would be able to run x86 applications, e.g. Word, etc.
Some people have got it working on Pi 3B+ (article is in German):
https://buyzero.de/blogs/news/windows-1 ... spberry-pi

Unfortunately driver support is still lacking, and you can't use drivers built for x86 on the ARM version of Windows.
Microsoft might very well do something for the Pi in the future - just an educated guess, seeing as the Pi 4 is an incredible computer, and would perform excellently in the office! Browsing is soo smooth with it!

[pi3g]

@jamesh: Can you tell us a bit more about the challenges with dual monitor support in the SoC design?

[jamesh]

Concerning the possibility of Windows on the Pi 4:
There is a version of Windows for ARM CPUs, which even has x86 emulation built-in. Meaning you would be able to run x86 applications, e.g. Word, etc.
Some people have got it working on Pi 3B+ (article is in German):
https://buyzero.de/blogs/news/windows-1 ... spberry-pi

Unfortunately driver support is still lacking, and you can't use drivers built for x86 on the ARM version of Windows.
Microsoft might very well do something for the Pi in the future - just an educated guess, seeing as the Pi 4 is an incredible computer, and would perform excellently in the office! Browsing is soo smooth with it!

I think a decent port is entirely down to Microsoft. So far I've not heard anything about any collaboration.

[gkreidl]

Is OpenMax still supported? Will omxplayer continue to work (except for the missing HW codecs)? I'm using it a lot of projects.

[Killertechno]

Are you planning to build CM4 and/or any upgrade for CM3?