Problem with full duplex and Accton EN-1207

[Gerhard Wiesinger]

Hello!

I just upgraded from a direct connection (crossover cable without any problems)
to a 8 port switch (Surecom EP-808X-A). The problem is that full duplex
doesn't work under Linux
(and Windows NT too).

Ethernet adapter are Accton EN-1207 (WITHOUT B,C,D,TX,..., the one with the
10BASE2 interface).

There are two EN-1207 in the Linux machine and one in the NT machine.
/etc/conf.modules looks like:
options tulip options=0x33,0x2C
(so 0x33 are relevant)

eth0 should be 100BASETX on the switch with full duplex and I've forced it on
the tulip driver. But the switch doesn't recognize the full duplex mode.
(On the NT machine 100BASETX fullduplex is forced too and it doesn't
work too).

So both haven't set full duplex and collisions and worse network performance 
occour.

(eth1 is 10BASET without full duplex and any problems)

tulip.c is 0.90 or 0.91 (without any letter).

Any ideas?

Ciao,
Gerhard