Linux Kernel bugchecks are now starting to show QR codes to debug crashes. We (As in, the KDE sig at Fedora) have started looking into somehow facilitating the act of scanning said QR codes. We looked at existing KDE projects: Qrca has the functionality of scanning QR codes through a capture device (Webcam for example). That's not a bad idea, except for the fact that the user would need to take a picture of the QR code and essentially prop up the image and show it through the webcam to scan it. Putting aside the fact that's extremely awkward, the success of the operation would depend on a couple things, such as how smudgy the cell phone screen is, how good the system's camera is and how good the cell phone's camera itself is. So, maybe not so good. Kodaskanna is another one that covers a usecase Qrca doesn't have: It does not allow you to "capture" a qr code, but allows you to input an existing image and scan the code on it. Most of the caveats from Qrca still apply, but at least this makes it a tiny bit simpler. A better solution would be for kde connect to have the function of capturing a ("high definition") qr code using the cell phone's camera and send it to a linked computer. Hence this suggestion. "But farchord, don't cell phones nowadays have QR code scanners built in to the camera apps already?" Yes, but those QR scanners are mostly made to scan URLs. Kernel debug QR codes are much heftier. See the 2nd and 3rd posts from here for examples: https://github.com/kdj0c/panic_report/issues/1 Thank you!
(In reply to Steve Cossette from comment #0) > A better solution would be for kde connect to have the function of capturing > a ("high definition") qr code using the cell phone's camera and send it to a > linked computer. Hence this suggestion. There are various FOSS apps such as "QR Scanner (PFA)", "Binary Eye", etc. which can handle hefty QR codes. After using those apps to scan the code, you can click the Share button to select a linked device. The link will be opened in a browser on the device you selected. Is the above method a good solution?
Created attachment 177687 [details] Screenshot of QR Scanner (PFA) Screenshot of QR Scanner (PFA) which shows that it successfully scanned a hefty QR code, and the link contained in the QR code can be shared to a linked device
These QR codes don't contain links, but instead kernel crash backtraces.
(In reply to Neal Gompa from comment #3) > These QR codes don't contain links, but instead kernel crash backtraces. The 2nd post ("A new test sample with V40 QR code") contains a link, while the 3rd post ("Test sample with uncompressed kmsg") contains text (kernel crash backtrace). QR Scanner (PFA) is unable to scan the above two, but Binary Eye works fine. I can click on the "Send to Device" option and select a linked device, and the kernel crash backtrace will be sent to selected device's clipboard.
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🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.