On Thursday 01 Jul 2004 13:34, nut megger wrote: > Continued Problem: Cannot detect the serial modem > located on serial port on the Ultrabay, so I am unable > to connect to my ISP through the external modem. > > I have the latest BIOS update installed and the serial > port is ENABLED. > > ** How do I get Linux to see the serial port on the > Ultrabay? ** > > I have tried the following: > > (1) Linux distributions: Mandrake 10, SuSe 9.1., > Fedora Core 2, Redhat 9.1, Debian. > > (2) I have loaded Windows ME and been able to use the > serial port (COM1) with no stress or strain. > > (3) PC Doctor indicates that there is a serial port. > > (4) Can’t tell upon boot whether Linux reports on the > serial interface. > > (5) Minicom and Kermit fail to recognize the serial > port. > > (6) Can there be an IRQ or I/O port conflict? Who > knows, I’m only a newbie. > > (7) I have added Linux to my Dell notebook (Mandrake > 10) and my Sun workstation (Aurora) – no stress, no > strain – and been able to use gnome and kde to dial > out the serial ports to an external modem. I prefer > using gnome and kde to dial out since the minicom and > Kermit commands defeat the purpose of having a windows > manager. > > There must be some expert out there that can take me > step by step through getting my X21 to utilize the > serial port on the Ultrabay – otherwise, the X21 is > just a paperweight. > > >
From the command line the command dmesg | grep tty should give you a display something like this :- ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A If it does not then the serial ports were not detected on boot. In which case then you may have an IRQ conflict Try on booting linux hit the ESC key wjen you see the lilo boot screen. At the text prompt enter linux noacpi noapic That will disable the apic and acpi features which are the most common cause of hardware detection issues. If that works try again individually to see if it is acpi or apic at the root of the problem. HTH derek -- www.jennings.homelinux.net http://twiki.mdklinuxfaq.org
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