Andrew: Your suggestion was good. Upon doing a search for the error message that I was getting (DMA write timed out) I found that a discussion in the linux-parport mailing list to be helpful.
I am guessing here, but I think that the default way of accessing the parallel port, in the original kernel installed during my Woody upgrade, is "interrupt-driven, protocol in hardware using DMA". So, my error message may be indicating that there is an unsuccessful attemp to use DMA to write to the hardware FIFO. Given this, I went into the options for recompiling a kernel and disabled "Use FIFO/DMA if available". I am guessing that my printing will be slower now. The file, parport.txt, in kernel-source-2.4.18/Documentation, was also useful. -Sageev ----- Original Message ----- From: "Andrew Sharp" <[EMAIL PROTECTED]> To: <debian-sparc@lists.debian.org> Sent: Monday, June 17, 2002 8:07 PM Subject: Re: Printing Problems on Ultra 30 > Andrew Sharp wrote: > > > > Sageev George wrote: > > > > > > While I've had some progress with trying to make my Ultra 30 print, > > > I've had no real success. What I have done so far is > > > adding the modules, parport_pc and lp. I have also > > > did MAKEDEV par, MAKEDEV parport, and MAKEDEV lp. > > > During the installation of the parport_pc module, > > > I get the following messages: > > > parport0: PC-style at 0x1fff13043bc (0x1fff13047bc), irq 7039808, dma 0 > > > [PCSPP,T > > > RISTATE,COMPAT,ECP,DMA] > > > parport0: Printer, EPSON Stylus COLOR 800 > > > > > > During lp installation (I think), I get the following: > > > lp0: using parport0 (interrupt-driven). > > > > > > When I try running the following (cat textfile.txt > /dev/lp0), > > > I get the following: > > > lp0: compatibility mode > > > DMA write timed out > > > > > > The last message repeats until I hit CTRL-C. > > > > > > I installed printtool, but it is not able to > > > autodetect any printers, and it even question > > > if I have added the parport module (which I have > > > by this point). > > > > If it makes you feel any better, it has quit working on my PC hardware > > as well in the last couple of kernels. Don't know the details, > > because on that PC I also have windows, and printing still works with > > windows, so I'm just using windows when I need to print. This may not > > seem of much use, but it suggests that the problem is known to others > > and possibly there is a patch out there or the problem is due to be > > fixed soon. Or maybe someone knows a workaround. Fire up your search > > engine. > > Oh yeah, the experience is exactly the same, except I don't get the > DMA write timed out message. > > a > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]