How to get screen capture work in Linux Mint 22 Wilma?

[f1r35pirit]

Sorry if this is a duplicate, I couldn't find anything covering exactly my problem. If you know such a topic, please be so kind to point me to it.

I have installed the binary release 21.0.0.0 of HyperHDR onto my Linux Mint 22 Wilma (with Cinnamon, that may be important). It works fine with my SkyDimo device, but I can't get it to use a software screen capture. I've read that I should use pipewire/portal capture, and I gather that pipewire is what Linux Mint 22 uses (it is Ubuntu Noble underneath), however there seems to be no option for pipewire/portal capture among the HyperHDR settings in the WebUI.

I don't see any mentions of PIPEWIRE in HyperHDR logs. All I see there is this:

2025-06-11T19:50:35.698Z [V4L2:auto] (GrabberWrapper.cpp:53) Starting the grabber wrapper
2025-06-11T19:50:35.698Z [V4L2:AUTO] (V4L2Grabber.cpp:102) P010 was supported on the build machine
2025-06-11T19:50:35.698Z [V4L2:AUTO] Restarting video grabber is now blocked due to reloading of the configuration
2025-06-11T19:50:35.699Z [V4L2:AUTO] Cropping image: width=0 height=0; crop: left=0 right=0 top=0 bottom=0 
2025-06-11T19:50:35.699Z [V4L2:auto] (GrabberWrapper.cpp:180) CEC keycode. Start: 0, stop: 0
2025-06-11T19:50:35.699Z [V4L2:AUTO] (Grabber.cpp:390) setBrightnessContrastSaturationHue nothing changed
2025-06-11T19:50:35.699Z [V4L2:AUTO] (V4L2Grabber.cpp:143) setHdrToneMappingMode to: Disabled
2025-06-11T19:50:35.699Z [AUTOTONEMAPPING] Tone mapping is currently: disabled
2025-06-11T19:50:35.699Z [V4L2:AUTO] (Grabber.cpp:299) setFpsSoftwareDecimation to: 1
2025-06-11T19:50:35.699Z [SIGNAL_OLD] (DetectionManual.cpp:84) Signal detection area set to: 0.250000,0.250000 x 0.750000,0.750000
2025-06-11T19:50:35.699Z [SIGNAL_OLD] (DetectionManual.cpp:74) Signal threshold set to: {12, 12, 12} and frames: 200
2025-06-11T19:50:35.699Z [SIGNAL_AUTO] (DetectionAutomatic.cpp:375) Automatic signal detection -> errorTolerance: 9, modelTolerance: 90, sleepTime: 5000, wakeTime: 1000
2025-06-11T19:50:35.699Z [V4L2:AUTO] (Grabber.cpp:497) setDeviceVideoStandard preparing to restart video grabber. Old: '' new: 'auto'
2025-06-11T19:50:35.699Z [V4L2:AUTO] Delayed restart of the grabber due to change of selected device
2025-06-11T19:50:35.699Z [V4L2:AUTO] (Grabber.cpp:317) Force encoding to: NO_CHANGE (old: NO_CHANGE)
2025-06-11T19:50:35.699Z [V4L2:AUTO] setQFrameDecimation is now: disabled
2025-06-11T19:50:35.699Z [AUTOTONEMAPPING] Enabled: no, time to enable: 30s, time to disable: 500ms, thresholds: { 180, 175, 160}
2025-06-11T19:50:35.700Z [X11_SYSTEM:/DEV/FB0] Loaded X11 proxy library for screen capturing
2025-06-11T19:50:35.700Z [DAEMON] The system doesn't support the X11 system grabber

Then it falls back to framebuffer grabber (/dev/fb0) that apparently doesn't work on Linux Mint 22 with Wayland screen. No errors are in there in the logs, but the LEDs don't react to any changes on the screen. If I enable screen sharing via browser, then the react perfectly, so the problem is obviously with the capture.

Is there any way to make it work? I suppose it has something to do with me using Mint with Cinnamon, not with full-fledged Gnome.

Please say if you need the full logs.

P.S. It would be nice if there was an option in WebUI to export the logs as a file, not just copy to clipboard.

[awawa-dev]

Hi
Yes, full logs are needed - the startup is most important. Just copy them to one of pastebin service and provide a link. Also you must run HyperHDR as a program (from user menu), not as a service daemon.