Open curiousercreative opened 2 years ago
Have you narrowed this down to being an issue on Pop specifically? It sounds like it might just be a buggy device.
@leviport it's almost certainly not Pop! specific. I imagine it's Linux generic and like you said, probably a quirky device. it's a fairly common card reader in professional film production and photography and it works properly on macOS 10.14 & 12 (probably works on Windows too). I opened this issue here because I read that's the first step for Linux kernel bug reports. Unfortunately, it's not a card reader I own (my partner had it on rental), so I cannot really try on different USB controllers and host systems. I'll add hardware details to original post though
Hello, apologies if this isn't the proper channel for report. This is a CFast2.0 USB3 card reader. These dmesg logs are when attempting to read and then I unmount/mount in there, it doesn't do that by itself. Without looking at dmesg, you'd just think the reader was extremely "bursty". It'll read at ~400MB/s for 10-15 seconds and then not respond for 30 seconds, but without a fixed cadence of how long it'll read for versus how long it'll hang for.
Hardware diagram: HP Z840 <=> GC-MAPLE RIDGE USB controller <=> Launch keyboard USB-C <=> Lexar card reader