I think I found what makes my computer glitch and spike

henrico · Post by **henrico** » Wed Oct 25, 2006 7:50 am

I tried unplugging my midisport 4x4 from my monitor and it seemed to cure it... Not 100% sure it's that but it seemed to work last night. Was getting frequent glitches before at even low cpu %.

Just thought I'd share that with you

ewistrand · Post by **ewistrand** » Wed Oct 25, 2006 7:54 am

?

How in the world do you plug a MIDI interface into a monitor? That doesn't make any sense at all...

ew

henrico · Post by **henrico** » Wed Oct 25, 2006 7:55 am

I've got a dell 24" one with usb ports.

AdamJay · Post by **AdamJay** » Wed Oct 25, 2006 7:55 am

ewistrand wrote:?

How in the world do you plug a MIDI interface into a monitor? That doesn't make any sense at all...

ew

could be a built in hub.
like apple cinema displays with 2x firewire and 2x USB ports.

AdamJay · Post by **AdamJay** » Wed Oct 25, 2006 7:57 am

henrico wrote:I've got a dell 24" one with usb ports.

yea i had issues with my Motu Fastlane USB Midi interface plugged into my 23" Apple display. Everything else works fine.
There are alot of midi devices that don't fair well with hubs.

henrico · Post by **henrico** » Wed Oct 25, 2006 7:58 am

What's the alternative then? I need midi (not necessarily 4 ins outs any more though).

AdamJay · Post by **AdamJay** » Wed Oct 25, 2006 8:01 am

plug it in directly to the computer, not the monitor.

ewistrand · Post by **ewistrand** » Wed Oct 25, 2006 8:14 am

henrico wrote:I've got a dell 24" one with usb ports. :D

Ah... I see. :oops:

ew

henrico · Post by **henrico** » Wed Oct 25, 2006 8:20 am

AdamJay wrote:plug it in directly to the computer, not the monitor.

How would that make a difference? It's all connected anyway. I'll give it a go though... I hate m-audio

AdamJay · Post by **AdamJay** » Wed Oct 25, 2006 8:39 am

henrico wrote:
AdamJay wrote:plug it in directly to the computer, not the monitor.
How would that make a difference? It's all connected anyway. I'll give it a go though... I hate m-audio

you lose bandwidth by going through a hub.
direct connection = maximum bandwidth and less of a chance for a driver conflict.

henrico · Post by **henrico** » Wed Oct 25, 2006 8:40 am

Makes sense

pev · Post by **pev** » Wed Oct 25, 2006 4:11 pm

If that cures it, assuming you have a machine with PCI, stick in a new USB2 PCI card for best results. You only have finite bandwidth...

~Pev

Tarekith · Post by **Tarekith** » Wed Oct 25, 2006 4:22 pm

The hub could be on a difference IRQ too, lots of ways that could make a difference.

hacktheplanet · Post by **hacktheplanet** » Wed Oct 25, 2006 5:27 pm

Also, the hubs have a single current. So if you have a few bus-powered devices plugged into the hub, they may not have enough current to run.

pev · Post by **pev** » Thu Oct 26, 2006 10:55 am

the_planet wrote:Also, the hubs have a single current. So if you have a few bus-powered devices plugged into the hub, they may not have enough current to run.

This is true, but with USB what should happen is that the device will report back that it is in an "over-current" state and should end up not running. I doubt this would cause this kind of symptom.

~Pev