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by RichardUK
Thu Jun 11, 2020 12:10 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 223
Views: 38011

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Got the package installing now. I had to remove the failed install, do 'sudo apt update && sudo apt upgrade -y' and try the install again. That now installs without errors. My best guess is that I had forgotten to do the initial update / upgrade after first boot. eglInitialize is failing but I can d...
by RichardUK
Thu Jun 11, 2020 11:40 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 223
Views: 38011

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Trying to build for Mesa 3D GLESv2. GLESv2 and EGL libs not found. A quick addition, the following gives this output. sudo apt --fix-broken install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following additional packa...
by RichardUK
Thu Jun 11, 2020 11:32 am
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 223
Views: 38011

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Trying to build for Mesa 3D GLESv2. GLESv2 and EGL libs not found. As per the original sticky announcement post linker searching in /usr/lib Trying to install libgles2-mesa-dev and I get sudo apt install libgles2-mesa-dev Reading package lists... Done Building dependency tree Reading state informati...
by RichardUK
Sun May 24, 2020 7:26 pm
Forum: Ubuntu
Topic: RPi 4 "/dev/dri" folder missing on Ubuntu 20.04
Replies: 2
Views: 238

Re: RPi 4 "/dev/dri" folder missing on Ubuntu 20.04

Looks like this is a bug that is under investigation. So hopefully an update will fix this for me. The registered bug is "Missing v3d driver disables 3D support on RPi4". This is for Ubuntu to work on. Be nice to see it working. Only just been registered / accepted if I read it right. https://bugs.l...
by RichardUK
Sun May 24, 2020 6:32 am
Forum: Ubuntu
Topic: RPi 4 "/dev/dri" folder missing on Ubuntu 20.04
Replies: 2
Views: 238

Re: RPi 4 "/dev/dri" folder missing on Ubuntu 20.04

BTW I installed libgbm-dev and kmscube. Get the error

could not open drm device
failed to initialize legacy DRM
by RichardUK
Sun May 24, 2020 6:29 am
Forum: Ubuntu
Topic: RPi 4 "/dev/dri" folder missing on Ubuntu 20.04
Replies: 2
Views: 238

RPi 4 "/dev/dri" folder missing on Ubuntu 20.04

Making a rod for my own back using Ubuntu 20.04 on RPi but I like it. It's a hobby...... ;) Anyway, I am running without X on the command line. And I am trying to get some old GLES code running again. After some rooting about in the undergrowth of the internet it seems there are a few things I need....
by RichardUK
Mon Jul 29, 2019 4:35 pm
Forum: Other projects
Topic: Putting my money where the foundations mouth is :)
Replies: 1
Views: 352

Putting my money where the foundations mouth is :)

Here is a picture of my Raspberry Pi 4 desktop. I will be starting my Masters in October so will be giving it a go as my study PC. :) Specs are: Rpi 4 - 4 GIG Two new AOC G2590VXQ 24.5 1080p monitors 7 port USB 3.0 powered port 32 GIG SD card for OS 128 gig USB 3.0 usb drive which has the home folde...
by RichardUK
Thu Jun 27, 2019 9:24 am
Forum: General discussion
Topic: Why do I not see 2x speed up in sysbench?
Replies: 5
Views: 1028

Re: Why do I not see 2x speed up in sysbench?

Ta will give that ago. :)
by RichardUK
Wed Jun 26, 2019 10:44 pm
Forum: General discussion
Topic: Why do I not see 2x speed up in sysbench?
Replies: 5
Views: 1028

Why do I not see 2x speed up in sysbench?

On the blog post it says "yielding performance increases over Raspberry Pi 3B+ of between two and four times, depending on the benchmark." when talking about moving to the newer CPU arch. And yet testing the CPU alone with sysbench shows only 15% speed up. confused.com :? Is sysbench that bad??? I h...
by RichardUK
Wed Jun 26, 2019 9:39 pm
Forum: Troubleshooting
Topic: Got the latest Raspbian light image, pip is not installed
Replies: 2
Views: 1363

Got the latest Raspbian light image, pip is not installed

I've googled and seems I have to download a script from https://pip.pypa.io/en/stable/installing/
Is this script safe? Is pip in the disk image and I am missing something???

Ta :)
by RichardUK
Wed Jun 26, 2019 8:43 pm
Forum: General discussion
Topic: Here is a printable case I designed for the Rpi 4 :)
Replies: 2
Views: 762

Here is a printable case I designed for the Rpi 4 :)

In Tinkercad

On Thingiverse

It's a two part print, the base and the top. There are three options for the top part.

Image
by RichardUK
Wed Jun 26, 2019 12:55 pm
Forum: General discussion
Topic: Reasoning behind dual Micro HDMI, and potential future alternatives?
Replies: 125
Views: 13310

Re: Reasoning behind dual Micro HDMI, and potential future alternatives?

Is that a Matrix quote at the end? :D I think you're brave doing this dual display / micro hdmi, I think if I was involved I would have argued for retaining one normal size HDMI. Let the compute daughter board developers create a 'work station desktop computer' solution. But I am sure a lot would sa...
by RichardUK
Mon Jun 24, 2019 9:14 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 945
Views: 156534

Re: Raspberry Pi 4 Thread - general discussion

Great news indeed! I ordered two boards - a 1GB, and a 2GB board, however I cannot find a 4GB board in stock in Canada, US, or UK. Please post here if you know any place eith 4GB in stock. Btw the additional i2c and uarts are great for my purposes. Last I check, the 4GB models won't be available ti...
by RichardUK
Mon Jun 24, 2019 9:06 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 945
Views: 156534

Re: Raspberry Pi 4 Thread - general discussion

Waiting to see how much over clocking head room is. :) I'm just interested don't need to it. Any guesses??? :D https://www.tomshardware.com/reviews/raspberry-pi-4-b-overclocking,6188.html Thanks for the link, a good read. Seems a modest overclock can give noticeable results, just a question if the ...
by RichardUK
Mon Jun 24, 2019 5:47 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 945
Views: 156534

Re: Raspberry Pi 4 Thread - general discussion

Waiting to see how much over clocking head room is. :) I'm just interested don't need to it. Any guesses??? :D
by RichardUK
Mon Jun 24, 2019 5:43 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 945
Views: 156534

Re: Raspberry Pi 4 Thread - general discussion

Do you know if the I2C bug has been corrected in the BCM2711 ? (bug about the I2C clock stretching, has been there since a decade) This question also interests me. Does anyone know the answer to it? Another great product from the Raspberry Pi team. Can't wait to get my hands on one (when the 4GB on...
by RichardUK
Mon Jun 24, 2019 5:40 pm
Forum: General discussion
Topic: I don't understand the point of still using USB 2.0
Replies: 12
Views: 1204

Re: I don't understand the point of still using USB 2.0

Yes I was wondering why it had only 2 USB 3.0. I think your suggestions are spot on.
by RichardUK
Wed Oct 18, 2017 10:15 am
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

How do you cope with all the scheduling when running multiple compilations in parallel? The Pi3 has four cores - might as well use them! That does seem hard in shell script. I'm using C++11 and some of the additions to the standard library has made it easier. It does use all the CPU cores you have,...
by RichardUK
Tue Oct 17, 2017 10:38 am
Forum: C/C++
Topic: Anyone using distcc ?
Replies: 2
Views: 963

Re: Anyone using distcc ?

That looks interesting, thanks for the link. :)
by RichardUK
Tue Oct 17, 2017 10:27 am
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

CI refuse to use make files because I lose more time playing with them than writing code. Currently I am just using large bash scripts if I have to compile large repos on linux. Trouble is on the Raspberry Pi, it has slow disks and slow CPU's. So some sort of "make" tool is needed to 1) only compil...
by RichardUK
Tue Oct 17, 2017 10:18 am
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

Can I add a suggested feature shamelessly stolen from Visual Studio, Allow the option to select a directory and automatically add all the files in a directory to the solution. I am in the same boat as you, I refuse to use make files because I lose more time playing with them than writing code. Curr...
by RichardUK
Sun Oct 15, 2017 9:38 pm
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

As I understand it, make will be spawned many times and so there is some duplication of work. I think there is only one instance of the "make" process. Not from what I see with htop. Also when you use make with recursion, it spawns it self again and reloads the file. I used it to compile source fil...
by RichardUK
Sun Oct 15, 2017 1:08 pm
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

Make syntax is horrible for anything other than the basics. This is my experience, just a short coming of mine. Seen some very clear use of make but for me just got in the way. for software distributed as source, the "./configure && make && sudo make install" mantra should work on a bare system IMH...
by RichardUK
Sun Oct 15, 2017 1:03 pm
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

karrika wrote:
Sun Oct 15, 2017 12:10 pm
Many of my friends who got frustrated by the ancient Makefile syntax have moved to SCons. It can do lots of the things easily that Makefiles struggle with. Have a look at http://scons.org/

I am actually using both techniques today.
Thanks, I'll check it out. :)
by RichardUK
Sun Oct 15, 2017 1:01 pm
Forum: C/C++
Topic: My alternative to using Make
Replies: 17
Views: 3227

Re: My alternative to using Make

* Multithread compiling. * Single process used during entire build process that allows for increased speed of dependency checking between source files. What do you mean by multithread compiling in a single process? Its hard to understand how you can run multiple instances of GCC in separate threads...

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