Go to advanced search

by jamesh
Mon Jun 17, 2019 10:19 pm
Forum: Beginners
Topic: Hostname on DHCP - is there a definitive answer?
Replies: 26
Views: 39686

Re: Hostname on DHCP - is there a definitive answer?

In order to be able to ping by hostname, add this to your /etc/hosts file: 127.0.1.1 your-hostname No Samba required. Works on wi-fi as well, but does not present the hostname to the router. So the pie still shows up as "unknown". A. No need to resurrect a old thread, this stuff is already in Raspb...
by jamesh
Mon Jun 17, 2019 10:16 pm
Forum: Camera board
Topic: Review: Graspinghand gooseneck camera mount
Replies: 3
Views: 72

Re: Review: Graspinghand gooseneck camera mount

Don't see many Pi's that old in the wild....that looks like one of the very very early ones.
by jamesh
Mon Jun 17, 2019 10:13 pm
Forum: Beginners
Topic: Persistent RAM in raspberry pi 2B
Replies: 3
Views: 94

Re: Persistent RAM in raspberry pi 2B

The Pi has no persistent memory*, everything is stored on the SD card.


* It has something called OTP (one time programmable) memory which is persistent, but that is tiny (64 32bit words?) and not accessible to users.
by jamesh
Mon Jun 17, 2019 2:35 pm
Forum: Compute Module
Topic: CM3+ 64bit OS
Replies: 2
Views: 137

Re: CM3+ 64bit OS

Please keep to one thread - you have already asked the question and got an answer.
by jamesh
Mon Jun 17, 2019 2:16 pm
Forum: Off topic discussion
Topic: [FIXED] Ego Search / Own Posts failing
Replies: 50
Views: 4406

Re: [FIXED] Ego Search / Own Posts failing

I am trying to get this sorted out. Will report back when I hear anything.

edit: note the person I need to talk to is on holiday until tomorrow.
by jamesh
Mon Jun 17, 2019 12:53 pm
Forum: Off topic discussion
Topic: [FIXED] Ego Search / Own Posts failing
Replies: 50
Views: 4406

Re: [FIXED] Ego Search / Own Posts failing

So its been nearly a month since the update to the forum that broke the ego search, while most of the problems seem to have been solved we are having to wait till the next day for the first post on a thread to show up in the ego search. while this might not seem like much of a problem when you repl...
by jamesh
Mon Jun 17, 2019 10:53 am
Forum: General discussion
Topic: How much memory is SoC memory on the Raspberry Pi 3?
Replies: 12
Views: 373

Re: How much memory is SoC memory on the Raspberry Pi 3?

HawaiianPi wrote:
Mon Jun 17, 2019 10:32 am
amorcoder wrote:
Mon Jun 17, 2019 9:18 am
I want to know the size of on chip memory. Or the Raspberry Pi 3 have no chip memory. thank you!!!
It has a tiny amount of cache, but the SoC has no onboard system RAM or flash storage.
Not that tiny.

32kB Level 1 and 512kB Level 2 cache memory, on the SoC die itself.
by jamesh
Mon Jun 17, 2019 9:13 am
Forum: General discussion
Topic: How much memory is SoC memory on the Raspberry Pi 3?
Replies: 12
Views: 373

Re: How much memory is SoC memory on the Raspberry Pi 3?

rpiMike wrote:
Mon Jun 17, 2019 7:09 am
I think that should read 1GB.
Thanks - fixed the post itself.
by jamesh
Mon Jun 17, 2019 6:57 am
Forum: General discussion
Topic: HWINFO on Raspbian???
Replies: 1
Views: 76

Re: HWINFO on Raspbian???

vcgencmd measure_temp
by jamesh
Mon Jun 17, 2019 6:56 am
Forum: General discussion
Topic: How much memory is SoC memory on the Raspberry Pi 3?
Replies: 12
Views: 373

Re: How much memory is SoC memory on the Raspberry Pi 3?

The PI3 has 1GB of total RAM, shared between the GPU and the CPU's according to the gpu_mem config variable. https://www.raspberrypi.org/documentati ... /memory.md
by jamesh
Fri Jun 14, 2019 10:19 am
Forum: Troubleshooting
Topic: USB
Replies: 2
Views: 100

Re: USB

And what is the problem? Is there indeed a problem?
by jamesh
Fri Jun 14, 2019 9:55 am
Forum: General discussion
Topic: CPU1 fail to come online
Replies: 6
Views: 226

Re: CPU1 fail to come online

If you see that on a new SD card, I would suspect broken hardware. I've never seen that error before!
by jamesh
Fri Jun 14, 2019 9:12 am
Forum: Troubleshooting
Topic: Virus or not ?
Replies: 7
Views: 320

Re: Virus or not ?

Martial wrote:
Fri Jun 14, 2019 8:53 am
thank you Jamesh,
Do you know the most likely door they used to enter ?
the web server of domoticz ?
openvpn ?
I had already changed the passwords of root and pi. Can I find a trace in a log system of their entry into my system ?

Regards
I have no idea. Sorry.
by jamesh
Fri Jun 14, 2019 8:42 am
Forum: Troubleshooting
Topic: Rasberry PI won't boot (Core Dump Failed)
Replies: 2
Views: 103

Re: Rasberry PI won't boot (Core Dump Failed)

I haven't used my PI 3 in a long time, so when I booted it up again, I just got this: "Caught <SEGV>, core dump failed" The internet has ZERO explanations for this.. Please help! ~A very tired person. Does look like the SD card is corrupted. Either re-image the card, or if you need data from this o...
by jamesh
Thu Jun 13, 2019 8:16 pm
Forum: Camera board
Topic: Pi 3 B+, v2.1 camera abyssmal fps @1080p
Replies: 12
Views: 353

Re: Pi 3 B+, v2.1 camera abyssmal fps @1080p

I was quite surprised by the cause as well, I can't make the connection. The only thing I though of is that both of them are going through the GPU somehow, which causes more strain on the GPU when trying to record and output 1080p as well, but that seems unlikely. The GPU can easily handle 1080p30 ...
by jamesh
Thu Jun 13, 2019 2:37 pm
Forum: Other programming languages
Topic: ScriptBasic
Replies: 1082
Views: 26474

Re: ScriptBasic

The big unknown is whether /dev/gpiomem will continue to exist in the future, whether direct memory access will be disallowed, and everything has to be done through libgpiod. I am still in the early stages of investigating libgpiod because it will no doubt have implications with GPIO use and partic...
by jamesh
Thu Jun 13, 2019 12:42 pm
Forum: Troubleshooting
Topic: Keypress Not Working In Raspivid??
Replies: 2
Views: 59

Re: Keypress Not Working In Raspivid??

I have just installed and built userland. I can run Raspivid but if i use the -K command, when the video is recording I can't zoom or use the other keypress commands? This is a known limitation, which we have had on our list of stuff to do for some time. Never had the chance to look at it I am afra...
by jamesh
Thu Jun 13, 2019 12:38 pm
Forum: Camera board
Topic: raspiraw different output after raspberry update
Replies: 6
Views: 198

Re: raspiraw different output after raspberry update

Good guess, it was indeed the firmware. I did a rpi-update and launched the function and the output was 407 kB. It's still incomprehensible for me, why does something unchanged won't work after an amount of time while the same thing was working before. Thank you very much anyway. Software is softwa...
by jamesh
Thu Jun 13, 2019 11:22 am
Forum: Troubleshooting
Topic: Virus or not ?
Replies: 7
Views: 320

Re: Virus or not ?

https://discourse.nodered.org/t/cryptom ... rvers/3454

Reformat the SD card and ensure you follow sensible security policies when opening device to the internet.
by jamesh
Thu Jun 13, 2019 8:43 am
Forum: Troubleshooting
Topic: Virus or not ?
Replies: 7
Views: 320

Re: Virus or not ?

by jamesh
Thu Jun 13, 2019 7:03 am
Forum: Camera board
Topic: Pi 3 B+, v2.1 camera abyssmal fps @1080p
Replies: 12
Views: 353

Re: Pi 3 B+, v2.1 camera abyssmal fps @1080p

I have been experimenting as well, trying to figure out the bottleneck and it seems to be the HDMI signal output, When the pi is outputting 1080p HDMI signal, the camera performance is seriously degraded (almost 50%), it shows up as 30% lost frames, but actually the only way to get a stable video i...
by jamesh
Wed Jun 12, 2019 8:56 pm
Forum: Beginners
Topic: Remove Network Features @ Software Level (Raspian)
Replies: 5
Views: 166

Re: Remove Network Features @ Software Level (Raspian)

Ok well worse can scenario I want it back I reinstall the OS. So I can delete the network libs? And the original PI’s have no Ethernet too? That’s interesting. On a side but related note can I edit what’s installed on the OS via the SD card say on a PC? Basically is there a piece of software for wi...
by jamesh
Wed Jun 12, 2019 8:54 pm
Forum: Troubleshooting
Topic: RPI3 screen flooded with cpu freq Errors
Replies: 1
Views: 56

Re: RPI3 screen flooded with cpu freq Errors

Does the same thing happen on Raspbian? We don't do bug fixes on other peoples distro's.
by jamesh
Wed Jun 12, 2019 3:40 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.19
Replies: 232
Views: 63202

Re: Moving Linux kernel to 4.19

A little off-topic but I was just reading that Buster will push out on July 6th (https://wiki.debian.org/ReleasePartyBuster) if no showstopper bugs are found. Very excited to see how much benefit Raspbian will reap from the new release. Very off topic, please use the buster thread. https://www.rasp...
by jamesh
Tue Jun 11, 2019 8:20 pm
Forum: General discussion
Topic: number of users that can connect to raspberry 3b
Replies: 34
Views: 1213

Re: number of users that can connect to raspberry 3b

mina wrote:
Tue Jun 11, 2019 7:19 pm
Thank you Jamesh.

Done: https://github.com/raspberrypi/linux/issues/3010.
Thanks. Cannot promise we can look at it right away, but it now won't be forgotten.

Go to advanced search