RE: IRQ Conflict

[Wagner, Joseph]

Title: RE: IRQ Conflict

I have two video cards: one integrated Intel i810 and one ATI Rage 128 Pro PCI.  They're both on IRQ 10.  Whenever I run Xconfigurator, it properly detects the ATI card and monitor, but doesn't work when testing the settings.

 

Returns error "No Screens Detected."

 

If it's not IRQ, what is it?

-----Original Message-----
From: Glenn Goodspeed [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 14, 2002 10:37 AM
To: '[EMAIL PROTECTED]'
Subject: RE: IRQ Conflict

Joseph - I have a rather sketchy knowledge of these matters, but as I understand it, the PCI bus is designed so the computer can manage more devices than it has IRQs.  Through some software magic, devices with the same IRQ are able to work together on the PCI bus.  Windows does not like this, so it pretends to assign different IRQs to the different devices.  If you check the initial settings listed while the computer is booting up, you'll probably see that the CMOS agrees with Linux.  If you are having difficulty getting the two devices to work together, you might try to find a reason besides IRQs.   -Glenn.

-----Original Message-----
From: Wagner, Joseph [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 14, 2002 10:33 AM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: IRQ Conflict

I have an IRQ conflict between two PCI devices.