[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 [Expired for linux-source-2.6.22 (Ubuntu) because there has been no activity for 60 days.] -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 I have now packaged CUPS with an alternative USB backend which does not use the usblp kernel module. You can download it here: http://www.linux-foundation.org/~till/tmp/ubuntu/gutsy/cupsys/ Install all packages in the binary/ subdirectory using "sudo dpkg -i ...". Then do sudo rmmod usblp Does CUPS/system-config-printer/gnome-cups-manager see your Brother printer reliably now? Note that the binary packages are for Ubuntu Gutsy. -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 Can you also test this with Gutsy (live CD if you do not want to install)? Can you also test in single-user mode? -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 ** Changed in: linux-source-2.6.22 (Ubuntu) Sourcepackagename: cupsys => linux-source-2.6.22 -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 Stanley Sokolow, to your last paragraph, this problem I have fixed now, at least for USB. You need to install the hal-cups-utils package. Then as soon as you unplug the printer or turn it off, the queue gets disabled, and as soon as you plug/turn on the printer again, the queue gets re-enabled again. -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 I have some more information and a solution to the problem; well, at least a work-around and a hypothesis about the underlying bug. My Brother HL-1440 works perfectly (so far) when connected with the parallel port instead of USB. That's a cheap alternative compared with buying a different printer. I checked the Brother-USA web site regarding the models that have been reported in bug 113640 and the related (duplicate) bug 35638. These models all come with both USB and parallel connections. The printer senses which cable is plugged in. Until the USB problem is solved, these models and perhaps all the Brother HL series of printers should be connected by parallel port or ethernet interface if available in that model, rather than USB. I tried some other experiments to help tunnel in on the nature of the USB "invisibility" problem I've described. I don't think its a bug in the kernel, but rather a bug in the way that the printer driver or CUPS interprets the printer status data it receives from the printer when probed on the USB port. As data supporting this hunch, consider this. I plugged in a different USB printer to the same USB cable instead of the Brother printer. This test printer was a printer/scanner Lexmark (model X2250). I did not install a driver yet. I just plugged it in, turned it on, and booted into Ubuntu 7.04. When I was logged in, I executed the "watch 'lpinfo -v'" command and watched. The printer was seen as a local usb printer with the correct model name. It was solidly visible, never going invisible from the lpinfo output. So what's different about the Brother printer? The Brother is a laser printer and the Lexmark X2250 is inkjet. Lasers have a fuser roller, which is heated by a heating element inside the roller so that the roller can melt the dry ink powder into the paper (fusing it to the paper), but inkjet printers do not. The heating element is temperature regulated by the printer so it maintains the correct fusing temperature. To do this, it turns the heater on and off as needed. I have a strong suspicion that the status data reported on the USB port includes some indication whether the fuser is at the correct temperature or not, or perhaps whether current is flowing in the heater element or not. This would be useful information for a diagnostic program that figures out whether the printer is functioning correctly, so it's possible that Brother provided this status data in the USB status dialog, for diagnostic purposes. If that's true, perhaps the Linux printer driver developers have mis-interpreted the status data coming in on the USB port, using the fuser status information as a printer presence indication (or perhaps as a printer ready or not ready indication). There probably is a different bit of data in the status message that is the correct indicator of the printer-ready state, one which corresponds to the "ready" LED on the printer itself. If I am correct about this, the behavior of cycling between visible and invisible would be explained -- when the fuser cools down and needs to be heated, the fuser status bit would be interpreted by the driver as printer not present or not ready, but when the fuser is hot enough and the fuser status bit changes, then the driver would see the printer as ready.Most likely this status bit is not present on the parallel cable, which typically uses one of the pins to indicate printer ready status and there Brother must be using the correct status.The true ready status or presence status is surely somewhere in the USB status message, but not where the driver is looking for it. Please pass this information to the appropriate printer driver developer somewhere. Another bug I've noticed during this testing should be reported (if not already reported yet -- I haven't checked). The Printers window (brought up by the Printing menu item) shows icons for the printers and indicates "Ready" under them. When I unplugged the printer from the USB cable, or when I added a non-existant printer to the Printers, or when I turned off the parallel printer, the indication remained "ready". Even when the printer disappears from the lpinfo output, the Printers window shows it as 'ready". That's not right. -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 That'd be Edgy. I always upgrade within a few weeks to the latest version. -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 Till, I don't remember. I'll try the 5.10 live CD and 6.06 live CD. Stan Till Kamppeter wrote: > *** This bug is a duplicate of bug 35638 *** > https://bugs.launchpad.net/bugs/35638 > > Which distro did you use before Feisty on which the problem did not > occur? Edgy? Dapper? Older? > > ** Changed in: cupsys (Ubuntu) >Status: Unconfirmed => Needs Info > > -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 Which distro did you use before Feisty on which the problem did not occur? Edgy? Dapper? Older? ** Changed in: cupsys (Ubuntu) Status: Unconfirmed => Needs Info -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 I've looked for an UTP interface for the printer before to eliminate the need of a running PC to print. That interface costs about as much as a new printer so that's not an option. More importantly I can't recall this weirdness before dist-upgrading to Feisty. Current kernel: Linux pc-desktop 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux I'm quite sure this didn't occur when running vmlinuz-2.6.17-10-generic/vmlinuz-2.6.17-11-generic on Edgy. Do you suspect regression in the kernel? -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 can you post the output of "uname -a"? Thanks. -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 113640] Re: printer randomly stops working
*** This bug is a duplicate of bug 35638 *** https://bugs.launchpad.net/bugs/35638 Brother printer on USB are known to have communication problems. This is probably the same as the problem reported as bug #35638. The best is probably to use the printer's ethernet connector (if it has one) to get a network add-on for this printer or connect it to the USB printer port of a router ort a network print box. ** This bug has been marked a duplicate of bug 35638 Hl-1050 is not detected properly -- printer randomly stops working https://bugs.launchpad.net/bugs/113640 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
