Jack, Sometimes by swapping the pci devices, one can change the IRQ. scanModem reports that your modem is an agrsm that is potentially supported under 32 bit linux. Predictive diagnostics for card in bus 00:0a.0: Modem chipset detected on NAME="Communication controller: Agere Systems V.92 56K WinModem " CLASS=0780 PCIDEV=11c1:048c SUBSYS=11c1:044c IRQ=255 IDENT=agrsm For candidate modem in: 00:0a.0 0780 Communication controller: Agere Systems V.92 56K WinModem Primary device ID: 11c1:048c Support type needed or chipset: agrsm There is no agrsm software support for x86_64 systems, through the modem may be supported on Intel/i386 installations, which do more slowly servce x86_64 processors. This last line tells us sadly that the modem has no support for x86_64 systems :( I was hoping that the modem would be supported by the martian modem drivers, but it is a different chipset. Regards, Antonio On Fri, Oct 28, 2011 at 9:23 AM, Jack <jack.perez314@xxxxxxxxx> wrote: > I was looking at the file ModemData.txt, and I saw that the irq was set > to 255. I thought that irq only went to 15. Anyway how do I change > the modem IRQ? The file tell you to enter "pci=routeirq" in the > menu.lst. The problem is that Ubuntu 11.04 does not have a menu.lst > file. Can you advice on this matter? Any information will be > appreciated. > > Regards, > Jack >