USB problems and 2.4.0 hangs

From: John Coppens (jcoppens@linux2.uccor.edu.ar)
Date: Sat Sep 02 2000 - 10:25:25 EDT

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    Hi all.

    I'd installed the backport of the USB patch (to 2.2.16) and had the
    following problem:

    After a few inches of printing a graphics page (ghostscript output), the
    whole printing job would just hang. Only exit was switching the printer
    on/off and removing the print job. The printer is an HP810C and (I suspect)
    the problem is at the VIA chipset (VT82C586).

    After a few frustrating tries, I moved to kernel 2.4.0-test7, suspecting
    that maybe there was a problem with the backport. Results:

    Exactly the same print problem: hangs after 5 - 10 cm of printing a
    graphics page (text mode works ok).
    But, after installing 2.4.0, yesterday, I had two misterious hangs of the
    operating system - apparently nothing to do with the tasks that were
    running - they were completely different.

    Just in case: the printer is driven by the apsfilter, which works fine
    when using the parallel port.

    Thanks on beforehand!

    John 

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