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by ejolson
Sun May 31, 2020 5:43 pm
Forum: Raspberry Pi OS
Topic: Request for 64 bit raspbian.
Replies: 27
Views: 1653

Re: Request for 64 bit raspbian.

Given that VNC server doesn't work for connecting in to a headless Pi, I found that NoMachine for ARM - arm64 [url][https://www.nomachine.com/download/download&id=109&s=ARM/url] works just fine. Its alpha software works nicely with raspios beta software. I'm using xrdp with xorgxrdp which allows th...
by ejolson
Sun May 31, 2020 5:16 pm
Forum: General discussion
Topic: Tg - a watch timegrapher for RPi3
Replies: 12
Views: 4016

Re: Tg - a watch timegrapher for RPi3

I have ordered another raspberry pi microphone. Is anything I am doing wrong ? I have increased the gain t max from audio input gui. Selected the usb mic as input. Ordered the raspberry pi microphone from amazon, see the stock image.31hioi8NVQL.jpg Any more instructions ? Due to the non-Raspberry p...
by ejolson
Sun May 31, 2020 5:11 pm
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 611

Re: No analog sound on Pi4 kernel 4.19.118

This may not help but here's my experience with my Pi4. I simply right click on the loudspeaker icon on the gui and choose analog (now AV jack after latest update) or any Bluetooth l have added. To add devices click on Bluetooth icon and choose add devices, now this is where it can take a long time...
by ejolson
Sun May 31, 2020 4:46 pm
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 611

Re: No analog sound on Pi4 kernel 4.19.118

This may not help but here's my experience with my Pi4. I simply right click on the loudspeaker icon on the gui and choose analog (now AV jack after latest update) or any Bluetooth l have added. To add devices click on Bluetooth icon and choose add devices, now this is where it can take a long time...
by ejolson
Sun May 31, 2020 4:42 pm
Forum: General discussion
Topic: Tg - a watch timegrapher for RPi3
Replies: 12
Views: 4016

Re: Tg - a watch timegrapher for RPi3

I have ordered another raspberry pi microphone. Is anything I am doing wrong ? I have increased the gain t max from audio input gui. Selected the usb mic as input. Ordered the raspberry pi microphone from amazon, see the stock image.31hioi8NVQL.jpg Any more instructions ? Due to the non-Raspberry p...
by ejolson
Sun May 31, 2020 7:25 am
Forum: General discussion
Topic: Memory Bandwidth of the Pi 4B
Replies: 49
Views: 2643

Re: Memory Bandwidth of the Pi 4B

As no one has run stream on the Pi 4B with 8GB RAM, I tried the ODROID-N2 which is a big.LITTLE architecture with two Cortex-A53 cores and four Cortex-A73 cores. It was difficult to interpret the results of mixing the two types of cores together, so I opted to test the big cores separately and then ...
by ejolson
Sun May 31, 2020 6:14 am
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 611

Re: No analog sound on Pi4 kernel 4.19.118

Hi to all, For years I'm using Pi's. The're great. A few days ago I had the first problem for which I can't find the solution. When I did a dist-upgrade the new kernel was 4.19.118. Everything went fine accept sound. Just nothing. Using beta firmware for USB boot (works) Restore to 4.19.97 restores...
by ejolson
Sun May 31, 2020 5:52 am
Forum: Gaming
Topic: Trying to come up with a list of non-emulated decent games available for the Pi
Replies: 4
Views: 246

Re: Trying to come up with a list of non-emulated decent games available for the Pi

I don't know if this fits your criteria but there is an engine to run Diablo. I posted about it here https://www.raspberrypi.org/forums/viewtopic.php?f=78&t=51794&start=300#p1641283 might be other titles in the list as well. How about Nethack? https://github.com/NetHack/NetHack/blob/NetHack-3.7/REA...
by ejolson
Sun May 31, 2020 5:45 am
Forum: Advanced users
Topic: How to measure energy per instruction for Raspberry Pi 0w?
Replies: 1
Views: 113

Re: How to measure energy per instruction for Raspberry Pi 0w?

Hi, I would like to measure the energy consumption (current, power) as a function of the instructions (ISA) I am executing. Is there a profiling framework for doing that? Namely, what is the configuration I should use for that, i.e. software tools, hardware equipment and OS (Raspbian vs bare metal)...
by ejolson
Sun May 31, 2020 4:54 am
Forum: General discussion
Topic: Should I buy 8Gb Model
Replies: 76
Views: 3479

Re: Should I buy 8Gb Model

My amd64 desktop has 32G RAM, 6x6T rust + 2x256G SD, and 3x4kp60 monitors. Now, I've been using those 3x4k for long enough that a drop to 2x4kp30 is a huge comedown, and not one I'll take lightly. Out of curiosity what do you do with three 4K monitors that would work on a Pi if it supported 60p? Th...
by ejolson
Sun May 31, 2020 1:37 am
Forum: Advanced users
Topic: Raspberry Pi Zero W boot with NFS root filesystem
Replies: 104
Views: 2592

Re: Raspberry Pi Zero W boot with NFS root filesystem

This is solved for this project. I've implemented a small RAMdisk and use rc.local to copy files that will be used during the applications actions. This works quite well. Once lighttpd loads, it remains RAM resident so during operation, the only thing WiFi is used for is sending the camera image to...
by ejolson
Sun May 31, 2020 12:40 am
Forum: Networking and servers
Topic: iSCSI Root Like a Data Center
Replies: 26
Views: 1480

Re: iSCSI Root Like a Data Center

I was working on getting the Pi 4 to network boot as well for the past week and a half. I actually got it working without an SD card at all (after the initial setup), which is a little different from what you did. I just finished writing it all up on https://shawnwilsher.com/2020/05/network-booting...
by ejolson
Sun May 31, 2020 12:36 am
Forum: Networking and servers
Topic: iSCSI Root Like a Data Center
Replies: 26
Views: 1480

Re: iSCSI Root Like a Data Center

I wonder if the official Pi Server setup uses the nolink option Correct. You can see what changes it has compared to standard Raspbian here: https://github.com/raspberrypi/piserver/blob/master/scripts/convert_chrooted_cmds#L112 Thanks for the link. It looks like nolink is the only addition to the d...
by ejolson
Sat May 30, 2020 4:55 pm
Forum: General discussion
Topic: RPi Rack Mount Case Project
Replies: 15
Views: 538

Re: RPi Rack Mount Case Project

Do you think it would be possible to run a Pi 4B using one these 5V buck converters Based on a quick look, the specs look OK so they may work fine. However since there is no manufacturer name I'd worry that the performance won't match the specs and/or the lifetime will be short (been burned too man...
by ejolson
Sat May 30, 2020 4:49 pm
Forum: General discussion
Topic: What happened to Raspbian-X?
Replies: 58
Views: 6068

Re: What happened to Raspbian-X?

We decided that the name change was the best option to both adhere to his requests and maintain a consistent approach. No takedowns, no arguments, no hassle, just people talking to each other and coming to a mutually satisfactory conclusion. Good to know. Thanks for clarification and sorry for goin...
by ejolson
Sat May 30, 2020 3:11 pm
Forum: General discussion
Topic: What happened to Raspbian-X?
Replies: 58
Views: 6068

Re: What happened to Raspbian-X?

The new Twister OS by the same group which has a different name now removed the VM and edited some icons so I'm guessing the issue centered around that. One might conjecture the rename of the official operating system from Raspian to Raspberry Pi OS might be the result of similar take down orders. ...
by ejolson
Sat May 30, 2020 2:44 pm
Forum: General discussion
Topic: What happened to Raspbian-X?
Replies: 58
Views: 6068

Re: What happened to Raspbian-X?

bomblord wrote:
Sat May 30, 2020 1:01 pm
The new Twister OS by the same group which has a different name now removed the VM and edited some icons so I'm guessing the issue centered around that.
One might conjecture the rename of the official operating system from Raspian to Raspberry Pi OS might be the result of similar take down orders.
by ejolson
Sat May 30, 2020 7:00 am
Forum: General discussion
Topic: Memory Bandwidth of the Pi 4B
Replies: 49
Views: 2643

Re: Memory Bandwidth of the Pi 4B

As mentioned in https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=275419&start=25#p1669473 the ODROID-C4 was released about the same time the 8GB Pi 4B. Odroid has a set up a remotely accessible C4 for testing and I tried it. http://fractal.math.unr.edu/~ejolson/pi/stream/odroidC4.svg As seems...
by ejolson
Sat May 30, 2020 6:59 am
Forum: General discussion
Topic: A Pi Pie Chart
Replies: 122
Views: 17525

Re: A Pi Pie Chart

As mentioned in https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=271121&p=1669795#p1669795 I had an opportunity to run some tests remotely on the newly announced ODRIOD-C4 single-board computer. Here are the pie chart results http://fractal.math.unr.edu/~ejolson/pi/pichart/OC4-omp.svg I find ...
by ejolson
Sat May 30, 2020 6:50 am
Forum: C/C++
Topic: New major release of GCC
Replies: 75
Views: 3125

Re: New major release of GCC

So, 3:55 to build just C. That's on a Pi4B 8Gb running PiOS-64. SD card is 16Gb "intergral" V10 A1. When I get around to putting PiOS-64 onto a USB3-HDD I'll try it again. PeterO There is not much savings, as far as I know, to build only C, because the bootstrap steps still need C++ for building th...
by ejolson
Sat May 30, 2020 5:38 am
Forum: General discussion
Topic: Raspbian rename to Raspberry Pi OS - a bad idea?
Replies: 78
Views: 2800

Re: Raspbian rename to Raspberry Pi OS - a bad idea?

... Am I in the minority thinking this rename is a bad idea? IMO - Yes I don't think it's as bad as when someone tried to name the desktop environment Pixel at exactly the same time Google was releasing their first Pixel phones. Originally Debian was an amalgamation of Debra and Ian, the couple who...
by ejolson
Sat May 30, 2020 5:26 am
Forum: General discussion
Topic: RPi Rack Mount Case Project
Replies: 15
Views: 538

Re: RPi Rack Mount Case Project

Hi! Nice work! I'm curious about the density. Is there a reason you chose to only use 3 PIs? For example, I have 2 of these https://smile.amazon.com/gp/product/B01D90TX1O/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 each with 5 PIs (granted, they don't look anywhere near as nice as yours). Once...
by ejolson
Sat May 30, 2020 4:06 am
Forum: General discussion
Topic: RPi Rack Mount Case Project
Replies: 15
Views: 538

Re: RPi Rack Mount Case Project

Thanks Paul! I was kind of hoping people would ask some questions about it. I put a lot of effort into producing a professional looking system and I'm pretty pumped about the outcome. It looks a lot better in person than it does in the photos. They really don't do it justice. Thanks again! Okay, I'...
by ejolson
Sat May 30, 2020 1:45 am
Forum: Off topic discussion
Topic: Raspberry Pi as a PCIe card concept
Replies: 51
Views: 3316

Re: Raspberry Pi as a card concept

As far as I can tell 99% of people never wanted a big, ugly, noisy, power sucking, big box computer in their home. Like an IBM PC or generations of subsequent clones. They reluctantly brought those monstrosities into their homes as the only way to access the internet and with the lame excuse that i...
by ejolson
Sat May 30, 2020 12:47 am
Forum: Off topic discussion
Topic: Raspberry Pi as a PCIe card concept
Replies: 51
Views: 3316

Re: Raspberry Pi as a card concept

When visiting the local university I noticed piles of big box PCs on their way to the recyclers. They are not getting replaced. The student lab here recently switched from Xeon workstations upgraded with CUDA GPUs to some all-in-one devices. I think the CS department took the GPUs before everything...

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