When using OpenCL on the IntelGPU the CPU get's more hot, it has to work harder 

As you can see with intel_gpu_top command.

I do not know how you use OpenCL on an GTX960M, normally that uses CUDA and not OpenCL, maybe nVidia supports both, I can't say.

I have not tested OpenCL on nVidia or AMD cards.

Thanks Bas.

I think I've solved the issue. I updated the Ubuntu 24.04.4 kernel to the latest version, 6.16.7-061607-generic. I recompiled using the install.sh script from the source at https://github.com/ny4qphil/PhantomSDR-Plus.git, and the problems with freezing and intermittent WebSDR operation are gone. I used OpenCL with Intel HD Graphics 630 on an Intel i7-7700HQ processor. However, the temperature and CPU load are somewhat worse compared to using OpenCL with the GTX960M. All testing was done on a GP72 7QF Leopard Pro laptop.

Yes it does.

Mine runs on this CPU: https://www.intel.com/content/www/us/en/products/sku/97123/intel-core-i57500-processor-6m-cache-up-to-3-80-ghz/specifications.html

First you need to enable opencl in the TOML file, OpenCL must be installed and working.

Last, you must recompile the source to include opencl-support.

But as you don't give much information, it's impossible to give more.

More info: https://github.com/ny4qphil/PhantomSDR-Plus/blob/main/INSTALL.md

I spent several days trying to get PhantomSDR running, testing it on various hardware.
The issue likely stemmed from the fact that, for some reason, PhantomSDR (plus's fork) doesn't support integrated graphics adapters above HD530. Once I removed OpenCL for Intel graphics and switched to an Nvidia 1050Ti, the waterfall stopped stuttering and freezing. Since I tested it on a laptop (i7 7700HQ) and my home computer (i7-8700), I found a good solution with an Intel Core i7-1365U processor, which has an Intel Iris Xe Graphics core. I need to understand if PhantomSDR can run with OpenCL support. The processor's documentation confirms OpenCL support, but I'm concerned it might have the same issues as with HD630.

Quote from: 9a7aof on Sep 04, 2025, 07:58 PMI sent you a message to an email.

Ok, check your email (and spam folder as well) 

QuoteWell, I think Darko you want something like this.
I've made the modifications based on our 1.5.5 version and I prepared files to be changed.
If you still want the newer files, please contact.

Thank you for your effort and goodwill.
I would like to try your configuration files.

I sent you a message to an email.

Best regards,
Darko, 9a7aof

Well, I think Darko you want something like this.
I've made the modifications based on our 1.5.5 version and I prepared files to be changed.
If you still want the newer files, please contact.

Quote from: 9a7aof on Sep 03, 2025, 09:39 AMI would appreciate it if you could send your configuration files

Ok then, I'll try to prepare during the next few days what is needed and send you the link so to download only the basic files needed. Meanwhile just return to v.1.5.4 keeping of course a copy of v.2.0 if you would like to work again with it.
I'll also try to bring the bands button as you wish to appear, but only a recompile on your system will show if we've managed to make it as you like to be.
My email is : sv1btl [at] otenet [point] gr

Quote- Initial frequency for each band is a function named "initFreq" (in waterfall.js)

- Different values for brightness for each band can be setup using min: max: in bands section (in waterfall.js)
For example:
{ name: '40M HAM', min: -30, max: 110, initFreq: '7120', startFreq: 7000000, endFreq: 7200000, color: 'rgba(50, 168, 72, 0.6)',
          modes:

I tried this with vaterfall.js on v2.0.0, entered it as you suggested, compiled it, it didn't work.

QuoteIn your place, I would try to replace app.svelte and waterfall.js with the older versions. I don't know if recompile will work without errors. If not, we have to work from the beginning.

This works properly after compiling, only the forum is "scattered", of course, it is not compatible with version 1.5.4. The appearance is the same as in version 1.5.4.

QuoteWell Darko, if you want a copy of our version of PhantomSDR we use here in Greece, please contact to send you the entire folder as .zip
Our version includes all the things you want to work with them (manual brightness and initial frequency for each band, wheel step function and manual zoom slider) and also is mobile-friendly.

I would appreciate it if you could send your configuration files, I visit your phantom 1.5.5 websdr often.

QuoteI think it will be rather easy to show bands outside the popup window, at least in web-view and keep the popup only for the mobile version.

For those of you who know how to program, it might be easy, for me it's an impossible mission. 

I would also like to see a version v2.0.0 that would be more user-friendly, the hidden button for selecting bands and for the mouse wheel with the wrong step settings doesn't really attract new users.
A long time ago I read how to create a user interface, one of the rules was that everything important should be on the left side of the web interface.
Selecting bands is more important than the button for enabling ft8 demodulation. Recording is used relatively rarely...

Best regards,
Darko, 9a7aof

Quote from: 9a7aof on Sep 01, 2025, 08:03 AMNo problem,
I send app.svelte and waterfall.js from my phantom v.1.5.4.

Well Darko, if you want a copy of our version of PhantomSDR we use here in Greece, please contact to send you the entire folder as .zip
Our version includes all the things you want to work with them (manual brightness and initial frequency for each band, wheel step function and manual zoom slider) and also is mobile-friendly. Please check SV1BTL PhantonSDR
I think it will be rather easy to show bands outside the popup window, at least in web-view and keep the popup only for the mobile version.