Code review comment for lp:~glmark2-dev/glmark2/canvas-drm-rebranch

OK, got it. I reproduced the behavior, and have pushed a fix at revision 256. This works fine for me from both a serial console, as well as the "main" console (Ctrl-Alt-F1). The signal handler is now better encapsulated within DRMState, and allows the resources to be released properly. I've squelched the "error in select" message by making it debug only, as the vast majority of the time we would see that is precisely the case where a user interrupt has broken us out. I also added a notice to CanvasDRM::init() to indicate that the DRM canvas is experimental and is subject to change with the evolution of buffer management and modesetting APIs.