[PARPORT] Prob: parport0: FIFO is stuck, timed out

Norbert Preining (preining@logic.at)
Tue, 25 Jan 2000 09:02:16 +0100

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I have some problems with parport, I think: Printing to a
HP LJ1100 with ghostscript I got the following errors in the
syslog file and very slow printing (all pages single, long
timeouts). I tested this with different settings for dma, irq,
ecp/epp, each on/off. Here the results:

Reports of parport module:

parport0: PC-style at 0x378 [PCSPP,EPP]
parport0: cpp_daisy: aa5500ff(98)
parport0: assign_addrs: aa5500ff(98)
parport0: No more nibble data (0 bytes)
parport0: faking semi-colon
parport0: Printer, Hewlett-Packard HP LaserJet 1100

and (for DMA enabled, ECP/EPP enabled):
0x378: FIFO is 16 bytes
0x378: writeIntrThreshold is 7
0x378: readIntrThreshold is 7
0x378: PWord is 8 bits
0x378: Interrupts are ISA-Pulses
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,ECP,DMA]
parport0: cpp_daisy: aa5500ff(98)
parport0: assign_addrs: aa5500ff(98)
parport0: No more nibble data (0 bytes)
parport0: faking semi-colon
parport0: Printer, Hewlett-Packard HP LaserJet 1100

DMA/IRQ:
========
Bios: ECP/EPP

options parport_pc io=0x378 irq=7 dma=3

DMA write timed out
parport0: FIFO is stuck

no DMA/with IRQ:
================
Bios: ECP/EPP

options parport_pc io=0x378 irq=7 dma=none

lp0: using parport0 (interrupt-driven).
FIFO write timed out
parport0: FIFO is stuck

no DMA, no IRQ:
===============
Bios: Normal

options parport_pc io=0x378 dma=none

lp0: using parport0 (polling).
parport0: Timed out

My system: linux-2.3.40
gs 5.50

Thanks for any hints/tips/improvements.

Best wishes
Norbert

-- 
ciao
norb
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| Norbert Preining              http://www.logic.at/people/preining |
| University of Technology Vienna, Austria        preining@logic.at |
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