On Wed, Nov 16, 2005 at 03:34:03PM +0100, Charles de Miramon wrote: > Hello, > I use an old LaserJet HP 4L plugged on the parallel port that was > functioning perfectly. > > If I upgrade the kernel above 2.6.11 (I'm using the debian package > linux-image amd64-k8), printing does not work anymore. > > A command issued as root like echo -en "\rTest\r\f" >/dev/lp0 makes the > printer led blinkle but the page is not printed, pushing the printer button > to force a page feed gives a page with garble printed. > > I have a Asus A8N-SLI motherboard and I have not yet tried to fiddle with > the bios parameters for the parallel port. Something must have changed in > recent versions of the the parport_pc module but I have no clue (and Google > either) what it is. > > Downgrading to 2.6.11 solves the problem. > > tombouctou:/var/log# uname -a > Linux tombouctou 2.6.12-1-amd64-k8 #1 Wed Sep 28 02:31:26 CEST 2005 x86_64 > GNU/Linux > > tombouctou:/var/log# dmesg | grep parport > pnp: the driver 'parport_pc' has been registered > pnp: match found with the PnP device '00:08' and the driver 'parport_pc' > parport: PnPBIOS parport detected. > parport0: PC-style at 0x378 (0x778), irq 7, dma 3 > [PCSPP,TRISTATE,COMPAT,ECP,DMA] > parport0: Legacy device > lp0: using parport0 (interrupt-driven).
I think something changed recently where switching the parallel mode in the bios can make it work again. I don't remember which setting is recommended. I always left mine on ecp+epp mode, but then again I hardly ever use a parallel port. Try the different parallel port settings in the bios and see if one of them helps. I think 2.6.12 was when I remember seeing people start complaining about parallel port problems. Len Sorensen -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]