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Raspberry Pi4 announced
Raspberry Pi4 announced
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Old 6th July 2019, 08:18 AM   #21
soundcheck is offline soundcheck  Germany
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I guess you've seen that the "dust havn't settled yet".

Heat issues, gpu issues, audio OSes fighting to catch up....


Nothing that wasn't expected.


I'll stick to my plan not to jump on the train before September/October.


Enjoy.
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Old 6th July 2019, 08:27 AM   #22
mterbekke is offline mterbekke  Netherlands
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Quote:
Originally Posted by soundcheck View Post
I guess you've seen that the "dust havn't settled yet".

Heat issues, gpu issues, audio OSes fighting to catch up....


Nothing that wasn't expected.


I'll stick to my plan not to jump on the train before September/October.


Enjoy.
Indeed, the dust is still strong in this one;-)
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Old 6th July 2019, 01:53 PM   #23
Dimdim is offline Dimdim  Greece
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I don't know, I've had mine for a week now running MPD with Archphile's GUI (on Raspbian) with no issues. It's running just fine as an audio transport, feeding my USB / XMOS dac.

But I have not had the chance yet to take it out of the workshop and up to the living room to make a serious SQ comparison with the RPi 3.
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Old 6th July 2019, 03:53 PM   #24
soundcheck is offline soundcheck  Germany
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Of course it'll work on common tasks. Especially if you're able to configure a system yourself.

pCP has e.g. just launched a 6.0 Beta with Pi4 support and that after releasing 5.0 just a couple of weeks ago. They simply didn't see it coming.
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Old 8th July 2019, 12:03 PM   #25
mushroommunk is offline mushroommunk  United States
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A lot of USB C cables also won't work well with the raspberry Pi 4 right now: Pi4 not working with some chargers (or why you need two cc resistors) – The blog of Tyler Ward (aka scorpia)

I'll jump in when they're on the next hardware revision. Thanks to my phone I only have the e-marked style cables.
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Old 10th July 2019, 10:44 AM   #26
soundcheck is offline soundcheck  Germany
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It's obviously not a cable or power supply issue.

The USB-C issue is a real PI4 HW design issue.
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Old 10th July 2019, 11:24 AM   #27
Dimdim is offline Dimdim  Greece
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Yes, it is, but I don't think that such an issue should discourage any one of us.

It's not like we'll be using any plain old SMPS and usb cable to power it..
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Old 10th July 2019, 11:33 AM   #28
DRONE7 is offline DRONE7  New Zealand
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Pi4 works with a Pi3 official supply and a usb-micro to usb-C adapter provided the total draw from the usb outlets is less than 500mA.

If more then use a hub....or two...one for usb3 and one for usb2...
Cheaper still...buy the official Pi4 supply or build your own...
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Old 10th July 2019, 11:51 AM   #29
Bas Horneman is offline Bas Horneman  Netherlands
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Works with my phone charger and cable. (Anker)
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Old 10th July 2019, 01:08 PM   #30
CharlieLaub is offline CharlieLaub  United States
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The real design "flaw" of the Pi 4 seems to be the lack of heat management and an SOC that runs way too hot.

This is a pretty stupid move by the Raspberry Pi developers. The one thing about the Pi that separates its form factor from a mini PC is the ability to install "HATs" via the GPIO pins. The HAT sits just above the board where the SOC is located. This means that a heat sink will occupy the space where HATs are isntalled, but without one the SOC heats up so badly that it can reach 80C EVEN WITH THE CPU AT IDLE if the Pi is in any kind of case! At least that was what I took away from this temperature test series:
Cooling options for the hot Raspberry Pi 4 - Martin's Explorations
See also:
Raspberry Pi 4 Hot new release – Too hot to use enclosed - Martin's Explorations

So... now we have a Pi that is faster on paper (still not fast by any means) but if you try to make use of that speed the thermal management will just slow down the CPU. What good is that? If you add a fan and/or large heatsink to improve thermal dissipation, HATs are blocked. And you have the issue of noise from a tiny fan, not a selling point for audio applications. This is a real problem.

One workaround would be a board that attaches to the backside and that reproduces the GPIO and other headers, so that "HATs" could then be stuck on the bottom side, leaving room for a fat heatsink on the top. Maybe then HATs will become knows as A S S es...
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Last edited by CharlieLaub; 10th July 2019 at 01:19 PM.
 

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