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Raspberry Pi 4

raspberrypi.org

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Re: Raspberry Pi 4

#762

Post by jploh »

jareds wrote: post #629
bscphil wrote: post #152

Earlier quoted context omitted.

I'm crossing my fingers here. This is really something they should have put in the specs if it's supported. With 10bit decoding and Rec. 2100 [1] support, this would make a fantastic platform to build a media center on. I'd certainly upgrade from the Pi 3 even though I don't currently have a 4K television. [1] https://en.wikipedia.org/wiki/Rec._2100

What are the odds that this will support 1080p streaming with Plex? I've tried Plex on a Pi 3 using a Roku as a player with 1080p and it's a complete failure. Plex tries to encode everything even if native playback to the Roku is possible using the Roku media player.

My plex isn't on a Pi but I do not have this issue with Roku Express as a player. Could be other factors like the video codec and direct stream is set on Roku.

Re: Raspberry Pi 4

#763

Post by bin0 »

benj111 wrote: post #508
bin0 wrote: post #426

Earlier quoted context omitted.

Oh dear God that's tiny. How do you stand that? Genuinely curious; I feel like I'd end up claustrophobic.

I'm sure most of humanity for most of history have made do with smaller rooms than that. How do you cope in a car?

Sounds like a car might just be bigger...

But joking aside, I'm surrounded by glass on all sides in a car. That makes a great deal of difference. I probably wouldn't feel confined in a room that size if I had an entire wall of glass.

Re: Raspberry Pi 4

#764

Post by cesarb »

eemil wrote: post #184
Moxdi wrote: post #31

No normal sized HDMI sucks, I don't want to buy another adapter, aside from that this looks really cool, can't wait to get one

I agree. No idea why they went with micro-hdmi, when mini displayport is more robust, more common, and royalty-free.

> more common

More common in monitors perhaps, but I don't think I've ever seen a TV with a DP input. Since AFAIK the target market of the RPi is "plug it into a TV, plug a cheap USB keyboard and USB mouse, and you have a working computer", having HDMI output is a requirement.

Re: Raspberry Pi 4

#765

Post by jki275 »

HeWhoLurksLate wrote: post #752
fpgaminer wrote: post #714

Earlier quoted context omitted.

RasPi reliability is tricky, for sure. The recipe that's working for me now is brand name power supplies (RasPi foundations, CanaKit, or Adafruit) and brand name SD cards. Don't trust SD cards that come in RasPi bundles or kits, even from Adafruit; I've had those fail horribly. So far all my Samsung cards are working great. I've also been using A1 grade SanDisks, no issues so far (only been a few months) as well as u…

For power supplies, my go-to is Apple iPad chargers (the older ones) because they're built to last. Long-term, my plan is to mod some flavor of computer PSU and get properly regulated 5V out of it. Also, I'm one of those people who runs a UniFi controller on a Pi. I used Docker, it's been totally fine for my uses.

I’m using a drok buck converter off of a 12vdc battery to run a jetson nano. Solid so far.

Re: Raspberry Pi 4

#766

Post by m463 »

xorcist wrote: post #302
cyberjunkie wrote: post #3

Oh my! This is such a crazy upgrade. I've been using the RPI2 as my HTPC/NAS at my folks, and I'm so happy with it. I was itching to get the last one for myself. USB 3.0! Gigabit Ethernet! WiFi 802.11ac, BT 5.0, 4GB RAM! 4K! $55 at most?! What the!? How the??! I know I'm not maintaining decorum at Hacker News, but I am SO mighty, MIGHTY excited! I'm setting up a VPN to hook this (when I get it) to my VPS and then do…

> I've been using the RPI2 as my HTPC/NAS Using the Pi as a file server can be a bit flaky. The ethernet controller was an USB one, and was neither really stable or took load very well. The new PHY on a dedicated link is probably the single biggest improvement with this new revision. The HEVC is a bit unexpected considering the high license fees and general uncertainties. Let's hope the documentation can be released…

> The ethernet controller was an USB one, and was neither really stable or took load very well

Hmm... that explains a problem I had with a pi of mine. Every time the 10/100 switch it was connected to rebooted, the pi would lose its ethernet link until rebooted. Never had this with other machines on the same switch.

Re: Raspberry Pi 4

#767

Post by m463 »

apple4ever wrote: post #757
sgnelson wrote: post #751

Earlier quoted context omitted.

IMO, at this point you're not paying so much for the pi, but rather for the community and accessories. It's the entire environment that makes the pi useful; not just the hardware. (I speak as someone who sucks at programming and doesn't spend a 1/100th of the time learning the latest as I used too as a teen. So having the community around to help with my latest project that I need something more than a microcontrolle…

Absolutely this. I mentioned it above, but just to reiterate- there are lots of great hardware boards out there and many beat the Pi (though the 4 makes up the different finally). However, they ALL have terrible software support: old OS's, bad drivers, out of date or incomplete documentation. The Pi community makes it worth it to stay there.

That said, does the pi have accelerated graphics yet? I was playing with pygame (based on SDL) and I think all the blits and other operations were in software.

Re: Raspberry Pi 4

#768

Post by m463 »

cyberjunkie wrote: post #3

Oh my! This is such a crazy upgrade. I've been using the RPI2 as my HTPC/NAS at my folks, and I'm so happy with it. I was itching to get the last one for myself. USB 3.0! Gigabit Ethernet! WiFi 802.11ac, BT 5.0, 4GB RAM! 4K! $55 at most?! What the!? How the??! I know I'm not maintaining decorum at Hacker News, but I am SO mighty, MIGHTY excited! I'm setting up a VPN to hook this (when I get it) to my VPS and then do…

I like the usb-c input.

The big shortcoming of the other Raspberry Pis I have is power. Plug anything into it and you risk undervoltage problems (even with the official supply)

  [   49.910905] Under-voltage detected! (0x00050000)
  [   76.949928] Voltage normalised (0x00000000)
  [  436.806032] rpi_firmware_get_throttled: 1 callbacks suppressed
  [  436.806038] Voltage normalised (0x00000000)
  [  438.886093] rpi_firmware_get_throttled: 2 callbacks suppressed
  [  438.886100] Under-voltage detected! (0x00050000)
  [  445.126338] Voltage normalised (0x00000000)
I hope the new power input will stablize things.

Re: Raspberry Pi 4

#769

Post by universenz »

jacquesm wrote: post #739
elihu wrote: post #737

> The power savings delivered by the smaller process geometry have allowed us to replace Cortex-A53 with the much more powerful, out-of-order, Cortex-A72 core; this can execute more instructions per clock, yielding performance increases over Raspberry Pi 3B+ of between two and four times, depending on the benchmark. Looks like the Pi 4 will be vulnerable to Spectre. That's unfortunate, since it seems like this is qui…

Yes, it probably is. But for many use cases that is totally unimportant.

Could you outline/bring clarity to why that is totally unimportant for many use cases?
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