Sorry for the multiple comments, but I thought maybe it would just help if I provide all the information that is relevant.
Just before the screen resumes to the password dialog, I get a message at a console saying:-
kernel: [ 444.679922] MMC: killing requests for dead queue
I can attach the entire log if you want.
The problem doesn't occur if I don't have a SD card in the card reader. It also did not happen just now to windows on other workspaces, but it does _always_ happen to the Nautilus window on the workspace I resume to.
Sorry for the multiple comments, but I thought maybe it would just help if I provide all the information that is relevant.
Just before the screen resumes to the password dialog, I get a message at a console saying:-
kernel: [ 444.679922] MMC: killing requests for dead queue
I can attach the entire log if you want.
The problem doesn't occur if I don't have a SD card in the card reader. It also did not happen just now to windows on other workspaces, but it does _always_ happen to the Nautilus window on the workspace I resume to.