To the SDRangel Team

[KanotixPinguin]

To the SDRangel Team

I've been talking to chatgpd and tried many things.

To get to the point, my current system is Windows 11 10.0.26200 Pro Build 26200.

To be clear, my PC is an AMD Ryzen 7 8745HS with Radeon 780M graphics, 3801MHz, 8 cores. From 7.22 -
7.22.09, there were no crashes.

After that, I get a GPU OpenGL error. The combination of the Insider Build, the integrated Radeon 780M, and SDRangel/OpenGL support can cause instability. DWM crashes occur.

Older SDRangel versions all work fine, but they lack the 3D map lighting camera and intensity, plus the ArcGIS API.

I can't just delete Windows and install a different ISO. Question for the programmer: what do you use for testing on Windows 11 and Linux? I could install Linux on another laptop, but what does he recommend? Ubuntu or Debian Mint?

[srcejon]

> After that, I get a GPU OpenGL error.

Please show the exact error (i.e. screenshot or log file message).

Does it crash straight away or after an hour? What plugins are open?

> what do you use for testing on Windows 11 and Linux?

I use Windows 11 with Nvidia 4090 - but there's no reason it shouldn't work with any GPU.

Builds are made for Ubuntu 22.04 and 24.04, but you should be able to use Flatpak, Snap or build from source on other distributions.

[KanotixPinguin]

I'll provide more information in the next few days.

I'm still testing.

Which Windows 11 version are you using, Home or Pro, and the exact build?

Mine is an Insider build, but I've disabled that feature now.

I also spent a long time discussing this with chatgpd, and the AI confirms the same thing.

It's a problem with OpenGL and the AMD Ryzen GPU.

I need to translate all of this. I'm from Germany, and my English is terrible.

[srcejon]

I use Windows 11 Pro 25H2 - but there are thousands of SDRangel users on Windows of all different versions.

Just post screenshots and logs.

[KanotixPinguin]

So, it took a while; it was a very long day for me.

Here are some excerpts from the Windows event log and SDRangel logs.

Maybe it will help. The PC has crashed three times now, and it always fails when I try to configure or change something in the 3D map. It freezes, then the screen goes black, then it restarts.

[KanotixPinguin]

I know this is a lot, but here's a more detailed discussion about Windows 11 and builds.

An excerpt from hours of talking with AI.

[KanotixPinguin]

Here are some more screenshots before I go to sleep.

From sdrangel, it's impossible because it freezes and the screen goes black immediately on this PC

[srcejon]

Ok, please show a screenshot of SDRangel before it crashes, so I can see what plugins you have open and their settings.

From the log file, I see you are trying to use ADS-B over RemoteTCP. I see lots of messages:

2026-02-07 00:44:35.896 (D) FIFO::read: Underrun

Which suggests your network connection isn't fast enough. What is the server you are trying to connect too and what type of network connection? What sample rate?

I then see messages such as:

2026-02-07 00:43:59.455 (W) WGL: Failed to lock shared texture: Die Daten sind unzul ssig.
2026-02-07 00:44:00.460 (W) Invalid texture upload for 0x210aef43910 layer=0 mip=0
2026-02-07 00:44:01.473 (W) WGL: Shared texture is already unlocked!
2026-02-07 00:44:01.473 (W) WGL: Failed to share D3D11 texture (COM error 0x887a0005: Die GPU-Ger teinstanz wurde angehalten. Verwenden Sie GetDeviceRemovedReason, um die erforderliche Aktion zu bestimmen.). This will result in failed rendering. Report the bug, and try restarting with QTWEBENGINE_CHROMIUM_FLAGS=--disable-gpu
2026-02-07 00:44:01.473 (W) WGL: Failed to lock shared texture: Die Daten sind unzul ssig.

This indeed suggests a GPU/Driver/Chromium problem, and possibly out of SDRangel's control.

[KanotixPinguin]

Hey

So basically, I only have:

R0 SDRplay

R0 SDRplay Waterfall

R0 ADS-B Demolator

R0 Map
I only run the Remote TCP Sink afterward so I can get back online on the map.

My internet connection is stable, very good in fact.

Sdrangel freezes as soon as I'm even in the map settings. It doesn't matter if I go into Maps or Map Items; it freezes, and I can't even take a screenshot.

Chatgpt says something about the GPU/IGPU; I don't remember exactly, but it seems to be a problem with this Windows version on the mini PC and its graphics card.

I'm going to replace the mini PC with an Intel one.

Then we'll see what happens, okay?