On Wed, Nov 22, 2000 at 09:14:33AM -0500, Eythan Weg wrote:
> Neither 2.2.18pre21 nor 2.4.0-test11 behaves
> properly. They both allow me to write to /dev/lp0
> without error.
What happens if you do:
# insmod parport
# insmod parport_pc
# insmod lp reset=1
? Does the printer do anything?
> For 2.2.18 it is as follow: parport, parport_pc,
> pnp_parport, paride, and printer are set to
You could even turn off CONFIG_PNP_PARPORT and CONFIG_PARIDE
> Pnp and printer_readback are in the
> kernel. This is compiled with gcc-18.104.22.168.
And you don't need CONFIG_PRINTER_READBACK.
> For 2.4.0-test11 it is as follows: parport,
> parport_pc, printer are modules. parport_pc_fifo,
> parport_1284, pnp, isapnp are in the kernel. This
> is compiled with gcc-2.95.2. (I do not have easy
> access to the recommended compiler.)
You could turn off CONFIG_PARPORT_PC_FIFO and CONFIG_PARPORT_1284
altogether. It seems unlikely that the only problem is a compiler
bug, since the 2.2.x kernel is compiled with a kernel that's
recommended for at least one kernel you've tried.
My best guess at the moment is that it's a timing problem: perhaps the
printer needs a longer strobe or something. You can use tunelp to
adjust that (on 2.2.x only, it doesn't work with 2.4.x for the
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