Re: Printing Problems on Ultra 30 -> Solved!
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" <andy@netfall.com>
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
>
>
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