Re: lp card not found

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On Sat, 17 Oct 2020 at 20:22, Roger Heflin <rogerheflin@xxxxxxxxx> wrote:
1407:A000 is not listed in the driver.   That is what the driver uses
to load and determine it can handle the device.

The "VIA VT8231" is a South Bridge with support for a bunch of 
"legacy" ports per:

parm:           init_mode:Initialise mode for VIA VT8231 port (spp, ps2,
epp, ecp or ecpepp) (charp)

Some sound cards use a VT8231.
 
I wonder if init_mode changes the device ID.

If it is not in that list the driver believes it is not able to
operate it.  Vendor will change the pciid if they change the device in
some way (or they can change it if the want to at random).

If the driver in Fedora Live works either the vendor tested a different
card, used different driver options, or the driver has changed.   It is easy 
to compare lsmod lists and the pciid.  As usual, ArchLinux has good 

To avoid the manual "echo XXX XXX > .../new_id":

you can find a "new_id" in /sys under a parport_pc directory and echo
the id you have for this board assuming the driver can drive it (it
probably can). 
 
I am not sure of the format of the ID to be echo'ed
but google should be able answer.   A modprobe + the echo will have to
be done on each reboot.


 

On Sat, Oct 17, 2020 at 4:55 PM ToddAndMargo via users
<users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> On 2020-10-17 14:47, George N. White III wrote:
> > You might also try booting a Fedora Live USB to duplicate the vendor's
> > setup.
>
>
> That is a great idea.  I have been waiting on it till
> I see what folks had to say here first
>
> If it works, what data should I collect?
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--
George N. White III

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