Re: Possible Interrupt problem?
On Tuesday 02 October 2007, Eric Estes wrote:
I recently purchased a Shuttle XPC SN27P2 which uses the Nvidia
Ultra chipset. Getting Debian installed (or any other distro) is easy
enough and my onboard NIC is detected (Marvell 88E1116) but my
speed is as slow or slower than dial-up.
I've turned off the onboard NIC in the BIOS and installed an Intel
it was also detected fine but my speeds are still just as slow.
Maybe it's a duplex detection problem. You might play with
'ethtool' or 'mii-tool' and see what Linux thinks your network
settings are. If you're using a hub and the computer is in full-
duplex, the speed will be extremely slow because the computer will be
creating collisions without realizing it. Likewise, if you're using
a switch that's in full-duplex mode and the computer is in half-
duplex, you'll see slow speeds and lots of collisions listed in your
The classic symptom of this problem is pinging works fine, but larger
transfers stall or go very slowly. Sometimes the slow performance is
only in one direction.
I've seen cases where auto-detection simply failed for some reason
and I had to manually set it. This was more common five or six years
ago because there were still a fair number of switches around that
didn't support auto-detection and had to have duplex settings
configured manually, but a driver bug could still cause it today.