Alan, Am 14.03.2012 21:49, schrieb Alan Stern: > Okay, I see what the problem is. Your printer has a mass-storage > interface -- a card reader or something of the sort, right? Yes, indeed it has a builtin card reader. > Starting in 3.1 the kernel continually polls this mass-storage > interface, looking for media-change events (such as insertion of a > memory card). Right at the time you began printing, the mass-storage > interface stopped responding to these polls. After 30 seconds the > computer realized something was wrong, so it reset the printer. This > reset interfered with the printing, so the second page never got > completed. > > If you don't care about that card reader or whatever it is, you can > prevent the kernel from polling it. The command to use is: > > echo 0 >/sys/block/sdX/events_poll_msecs This fixes my printing issues. Thanks for looking into it. I'm wondering why that issue is not more widespread. I would have expected that many printers have features like this nowadays (but then again the specific behaviour is HP Officejet only). Is there no other technical solution to address this? Something like "do never reset a USB device which is currently in use"? Sorry I don't know anything about kernel components and USB stuff just thinking out loud that this does not look like a user compatible behaviour ;-) Thanks, Wolfgang -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
