Hi, Just wondering if anyone can shed some light on a problem I've had on two different HP printers using USB with CUPS (SuSE 8.0). It has only happened a couple of times and on different computers (one at the office, the other at home). Under certain circumstances (yet to be ascertained) when a printer is turned off and then back on, the printer will not accept a print job. I suppect that it is something to do with the USB hotplug utility which reassigns the USB device number somehow and /dev/usb/lp0 does not point to the correct USB device number anymore. The only solution I have found to solve the problem is to reboot the computer. I cannot find any information on how printers operate via USB and the hotplug utility or am I looking in the wrong area. Any help would be appreciated. Regards, Graham Smith ---------------------------------------------------------
On Thursday 29 August 2002 06:06, Graham wrote:
Under certain circumstances (yet to be ascertained) when a printer is turned off and then back on, the printer will not accept a print job. I suppect that it is something to do with the USB hotplug utility which reassigns the USB device number somehow and /dev/usb/lp0 does not point to the correct USB device number anymore. The only solution I have found to solve the problem is to reboot the computer.
I have a USB Lexmark E210 personal laser that does this also. I have not found any solution other than rebooting as you mentioned. *************************************************** Powered by SuSE Linux 8.0 Professional KDE 3.0.0 KMail 1.4 This is a Microsoft-free computer Bryan S. Tyson bryantyson@earthlink.net ***************************************************
On Thursday 29 August 2002 07:58, Bryan Tyson wrote:
On Thursday 29 August 2002 06:06, Graham wrote:
Under certain circumstances (yet to be ascertained) when a printer is turned off and then back on, the printer will not accept a print job. I suppect that it is something to do with the USB hotplug utility which reassigns the USB device number somehow and /dev/usb/lp0 does not point to the correct USB device number anymore. The only solution I have found to solve the problem is to reboot the computer.
I have a USB Lexmark E210 personal laser that does this also. I have not found any solution other than rebooting as you mentioned.
*************************************************** Powered by SuSE Linux 8.0 Professional KDE 3.0.0 KMail 1.4 This is a Microsoft-free computer
Bryan S. Tyson bryantyson@earthlink.net ***************************************************
You guys may have already tried this, but I thought it might still be worth the time to throw out there. Have you tried stopping and restarting hotplugging on your systems? Or maybe something to do with the USB, so that things might have a chance to resync with the device and system? Just a thought, someone more experienced here may be able to add more to this hypothesis. Seems like there should be a simpler way to do this though, then having to reboot the machine. Patrick -- --- KMail v1.4.3 --- SuSE Linux Pro v8.0 --- Amiga, SuSE Linux, PC Sales & Service Magic Page Products
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Bryan Tyson -
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Patrick