> Indeed where the DRM error message comes from https://github.com/torvalds/linux/blob/ffd294d346d185b70e28b https://github.com/torvalds/linux/blob/ffd294d346d1

> Indeed where the DRM error message comes from https://github.com/torvalds/linux/blob/ffd294d346d185b70e28b https://github.com/torvalds/linux/blob/ffd294d346d185b70e28b... That's for compact flash cards. Based on the kernel message from the StackExchange post we can tell it isn't a CF. So it's not coming from the line you linked, but 11 lines below.