[ltp] TP760 hardware setting disable irq 3 (needed for PCMCIA-card)

[Ekkard Gerlach]

Hello, 

TP 760EL (DSTN-Display) seems to preserve irq 3 for 
some special services. My PCMCIA-card (IBM, NE2000-compatible)
is always assigned irq 8, 9, 10 or 5 and not irq3. Why?

BIOS settings of TP 760EL don't allow turn off infrared device
or something other like in some BIOS of other TP's.

According to /proc/interrupts irq 3 is free! I already
tried to force irq3 by excluding the other IRQ's in 
/etc/pcmcia/config.opts - but no success. irq 3 is untouched.

There is no sound driver installed. There are no other 
devices installed that might have taken irq3.

With TP 760LD (my second TP) all works well. 
irq 3 is assigned first.
A Xircom PCMCIA-Card works well in both TP's but not with 
irq 3 but with irq 9. 

I'm using Suse 7.2. 


Why do I want to force irq 3 ? - Because ftp and telnet 
wedges after typing username. (NFS works excellent!) 
The client PC "rex" protocols in /var/log/messages 
after 3 minutes:

 rex login: gerlachConnection closed by foreign Host

A telnet from rex to ama results: 

  rex:~ # telnet ama
  Trying 192.168.0.22...
  Connected to ama.
  Escape character is '^]'.

ama protocols:  
  ama telnetd[2239]: ttloop: read: Connection timed out


I'm sure it's because of TP 760EL hardware settings 
because TP 760LD works fine with the same card and 
with irq 3. (BTW: ftp and telnet ports are given free, 
otherwise there xircom-PCMCIA-Card would not work either)

some ideas? 
thx
Ekkard


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