parallel port printer: interrupt storm & system slowdown with 6.2-release

Roland Smith rsmith at
Fri Feb 2 17:32:08 UTC 2007

On Fri, Feb 02, 2007 at 03:29:42PM +0100, Jost Menke wrote:
> Hi all,
> I am having big trouble getting my parallel port printer to work on  
> 6.2-release. I am getting lots of those famous "stray irq7" messages. I  
> already knew that from my 5.4 installation which I previously had on the  
> same hardware, so I tried so set the parallel port mode with lptcontrol  
> (lptcontrol -d did the trick under 5.4). Tried all the modes, but no  
> difference! Using the printer even slows down my whole system to an  
> unusuable state. Any ideas what the difference to 5.4 is or what I could  
> do?

Put the parallel port in polling mode with 'lptcontrol -p'. Or by
putting 'hint.ppc.0.flags="0x28"' in /boot/device.hints, and reboot. 

[plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
pgp: 1A2B 477F 9970 BA3C 2914  B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url :

More information about the freebsd-stable mailing list