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by jamesh
Wed Aug 21, 2019 8:19 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 173
Views: 27230

Re: Raspberry Pi 4 usb boot?

Gavinmc42 wrote:
Wed Aug 21, 2019 12:58 am
That is just wrong..... in my opinion.
And mine, smacks of cutting of nose to spite face.
by jamesh
Wed Aug 21, 2019 8:11 am
Forum: Troubleshooting
Topic: No audio over HDMI after update on RPI4
Replies: 2
Views: 55

Re: No audio over HDMI after update on RPI4

HDMI 0 or 1. Are you using the desktop if so go to the audio selector and see whether it's setto the right HDMI port.
by jamesh
Wed Aug 21, 2019 8:06 am
Forum: General discussion
Topic: Full KMS GL driver issues
Replies: 1
Views: 423

Re: Full KMS GL driver issues

What do you mean by edit the GL driver?
by jamesh
Wed Aug 21, 2019 8:05 am
Forum: General discussion
Topic: Pi for Video processing and video hardware acceleration
Replies: 1
Views: 77

Re: Pi for Video processing and video hardware acceleration

What are the specific requirements with regard to resolution and frame rate?
by jamesh
Wed Aug 21, 2019 8:04 am
Forum: Troubleshooting
Topic: 4k 60 hz is not listed, only 30hz
Replies: 27
Views: 1671

Re: 4k 60 hz is not listed, only 30hz

Hi there! I baught myself a new pi 4 and want to have a 4k 60Hz output. I am using hdmi port 0 with an amazon basics hdmi to mini-hdmi 2.0 cable. Unfortunately is only shows 30Hz- on my TV and my monitor (both capable to do 60 Hz). I have "hdmi_enable_4kp60=1" in my config. Does anyone have a clue ...
by jamesh
Tue Aug 20, 2019 5:04 pm
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 173
Views: 27230

Re: Raspberry Pi 4 usb boot?

echmain wrote:
Tue Aug 20, 2019 12:30 pm
Sheesh, is there any way these "Pi 4 USB boot" threads can be shoved off to a separate forum? (on a separate web site...on a separate planet...)
This is that thread. I would move it offplanet, but Musk hasn't occupied Mars yet.
by jamesh
Tue Aug 20, 2019 10:02 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 173
Views: 27230

Re: Raspberry Pi 4 usb boot?

I've been using Linux & BSD as my computer O/S since 1999, my computers boot from internal disk, or external USB disks & pendrives - it is the normal way to boot a mainstream computer - only the RPi, & similar hobby boards, boots from a microSD card. The RPi4B is now being 'advertised' as a desktop...
by jamesh
Tue Aug 20, 2019 7:53 am
Forum: Troubleshooting
Topic: 3440x1440 not applying
Replies: 14
Views: 395

Re: 3440x1440 not applying

dustamust wrote:
Mon Aug 19, 2019 6:33 pm
thanks. any word on a fix for this?
On holiday. 6by9 might have time to look at it.
by jamesh
Tue Aug 20, 2019 7:40 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 173
Views: 27230

Re: Raspberry Pi 4 usb boot?

So does anyone know have they made any progress with booting the raspi4 from usb? yet! All serious users need this facility No progress. Not even started yet AFAIK Network boot is being done first. Strange we are selling multiple tens of thousands of Pi4 per day, but none are going to serious users.
by jamesh
Tue Aug 20, 2019 7:37 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 173
Views: 27230

Re: Raspberry Pi 4 usb boot?

OK, my first post. My Pi 4 kit hasn't even arrived yet. Can I whine like so many here? Will the color of the box be as expected. Will I be able to put all the little bitty pieces together. Will smoke pour out. No USB/SSD native boot. I say "hang the engineers" for not waiting forever for my needs. ...
by jamesh
Mon Aug 19, 2019 7:54 pm
Forum: General discussion
Topic: Modding 1gig PI4B, with 8gb or 16gig ram chip
Replies: 18
Views: 813

Re: Modding 1gig PI4B, with 8gb or 16gig ram chip

This is not as simple as simply adding a new chip to the board, although that is indeed quite difficult anyway, but you will need to update the bootloader with the new sdram timings.

And of course you will need to find a pin compatible DRAM chip...
by jamesh
Sun Aug 18, 2019 10:40 pm
Forum: Troubleshooting
Topic: RPi 4 2GB - Cant set gpu mem above 600 / black screen
Replies: 4
Views: 151

Re: RPi 4 2GB - Cant set gpu mem above 600 / black screen

Imperf3kt wrote:
Sun Aug 18, 2019 10:34 pm
Just some anecdotal evidence, I set mine to 640MB when I first got it and haven't had an issue with it.
Why? It won't improve performance over 256 or even 128, and just takes memory away from Linux.
by jamesh
Sun Aug 18, 2019 10:38 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 170
Views: 7300

Re: Why moving to 64bit?

ejolson wrote:
Sun Aug 18, 2019 10:31 pm
jamesh wrote:
Sun Aug 18, 2019 9:26 pm
What 8GB Pi4? There isn't one.
I thought at least one was made in order to pass the compliance testing, which lists 8GB as being certified. Are you sure there isn't an 8GB model sitting on your desk?
No 8GB Pi4 on my desk. Never seen one.
by jamesh
Sun Aug 18, 2019 9:26 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 170
Views: 7300

Re: Why moving to 64bit?

I pretty much agree with everyone's comments about security. At first glance it might appear that fast AES encryption on a 64-bit platform is only useful for delivering secure web pages, file sharing and setting up virtual-private networks. I was just reading here about the garbage collection algor...
by jamesh
Sun Aug 18, 2019 7:25 pm
Forum: General discussion
Topic: DELL USB-C charger 45 watt
Replies: 11
Views: 338

Re: DELL USB-C charger 45 watt

My Dell USBC power supply for my laptop dock does NOT work.
by jamesh
Sun Aug 18, 2019 7:20 pm
Forum: Graphics, sound and multimedia
Topic: GPU Performance increase on RPi 4B
Replies: 4
Views: 260

Re: GPU Performance increase on RPi 4B

in my limited experience of using non-linear video editing, it was on machines much less powerful than the pi4u but that was quite some time ago...

I suspect the problem is more likely to be the quality of the software than the hardware,
by jamesh
Sun Aug 18, 2019 1:13 pm
Forum: Troubleshooting
Topic: RPi 4 2GB - Cant set gpu mem above 600 / black screen
Replies: 4
Views: 151

Re: RPi 4 2GB - Cant set gpu mem above 600 / black screen

Hey all, Im trying to setup my pi to run videos off my server as reasonably fast as possible, having a collection of 720 to 1080p to 4k files on there. I did some research and found that more memory would help that along, as the default would stutter and lag like crazy on default. As the title says...
by jamesh
Sat Aug 17, 2019 5:16 pm
Forum: Automation, sensing and robotics
Topic: Zwave usb stick for Pi4
Replies: 3
Views: 191

Re: Zwave usb stick for Pi4

Jmcc234567 wrote:
Sat Aug 17, 2019 12:18 pm
Hi,

Is there a Zwave USB stick which works with the Pi4 ?

Thank you.
We've done some investigation on these and they are not USB compliant. Some people have found they work ok through a hub.
by jamesh
Sat Aug 17, 2019 5:12 pm
Forum: General discussion
Topic: Lightweight word processor (alternative to LibreOffice Writer)?
Replies: 25
Views: 669

Re: Lightweight word processor (alternative to LibreOffice Writer)?

I use Google Drive webapps nowadays. Seem to work ok on Pi4.
by jamesh
Sat Aug 17, 2019 5:03 pm
Forum: General discussion
Topic: When can we expect USB boot for the Pi 4?
Replies: 56
Views: 2622

Re: When can we expect USB boot for the Pi 4?

How can you say that someone is 'ungrateful' - this is a commercial product - it isn't free - but was released before it was working fully. 8-) You keep saying it's not fully working. But it is fully working. You don't sell multiple tens of thousands of devices a day and have a backlog a mile long ...
by jamesh
Sat Aug 17, 2019 4:51 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 807
Views: 76990

Re: Raspberry Pi 4 Thread - general discussion

I like the flirc case but it does get hot when under heavy load, a fan will keep the device much cooler. But consider what heavy load is. Most people using the device as a desktop won't stress the flirc case overmuch.
by jamesh
Tue Aug 13, 2019 1:54 pm
Forum: Troubleshooting
Topic: 3440x1440 not applying
Replies: 14
Views: 395

Re: 3440x1440 not applying

We are currently looking at this, see https://github.com/raspberrypi/firmware/issues/722
by jamesh
Tue Aug 13, 2019 12:50 pm
Forum: Troubleshooting
Topic: pi 4B not showing Video on HDMI0 if memory split set to 896MB
Replies: 23
Views: 759

Re: pi 4B not showing Video on HDMI0 if memory split set to 896MB

We've probably never tested with those sorts of number because they are totally unnecessary. 128-256 is the max you should need., and you can get away with 16 or 32 depending on use case. I doubt we will investigate why it goes wrong, simply because is so far out of what is sensible to use.
by jamesh
Tue Aug 13, 2019 12:47 pm
Forum: Troubleshooting
Topic: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium? [fixed]
Replies: 49
Views: 5178

Re: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium? [fixed]

Cannot comment on why the :gpu settings say it is not accelerated, but with regard to the higher CPU, Chrome has a much more complex path for the video data to get through to display. For example there are colour conversions and entire frame copies (done at 30 frames a second, multiplied by the data...
by jamesh
Tue Aug 13, 2019 12:41 pm
Forum: Scratch
Topic: Scratch 2 offline
Replies: 5
Views: 255

Re: Scratch 2 offline

Thonny is our new Python IDE.

Cannot comment on Scratch2.

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