Usually, it is possible that it can be communicated with different USB devices independently at the same time. This looks like some USB stack problem, in the kernel or in libusb.
What happens here is that data is streamed to a first printer (the Epson) and while this is happening a new print job for the Samsung is sent. To find the printer on the USB something "lsusb"-like is done by libusb, getting a list of all USB devices and the IEEE-1284 device IDs of all devices which are printers. Can this "lsusb" poll break a runing data transfer? It should not, if it is not possible to poll the device data including the device ID while the device is busy, this device should be skipped on the poll. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313488 Title: cups multiple usb printers hangs after job sent To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1313488/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
