Jeffrey: Good thinking. But I checked things out, and could not find any obvious conflicts. My system only has one of the apparent two (based upon the BIOS setup) on-board serial ports enabled, and dmesg agrees: Detected PS/2 Mouse Port. Serial driver version 4.27 with MANY_PORTS MULTIPORT SHARE_IRQ enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A pty: 256 Unix98 ptys configured apm: BIOS version 1.2 Flags 0x07 (Driver version 1.9) When I boot W98, the system indicates that IRQ 3 is shared with the USB port (which is not supported with my 2.2 kernel, I understand), yet sound works fine. Perhaps without USB supported, the IRQ-sharing doesn't work right? IIRC, I may be able to disable USB in the BIOS - not a great end solution, but useful for troubleshooting and OK for the moment. I/O space looks good (no conflicts found) according to W98. My network "adapter" (an on-board thingy as well) lives in space below cc00 (uses the "dmfe" module, whatever the heck that is). I could find nothing in the BIOS setup or with the W98 driver binaries that allows me to change the settings that my on-board sound hardware use. Drats - it appears I can't even experiment with that. IRQ 5 is unused in my system. The only "modem" in my system is a Lucent "Win Modem", which is ignored by Linux (and resources don't appear to conflict with anything). David At 10/7/01 03:18 PM -0500, Jeffrey A. McCright wrote: >On Friday 05 October 2001 13:47, David Rush wrote: > > Hi. I've been running RH 6.2 for quite a while on my 450 MHz P-III with > > 64 MB, but I've never had sound working acceptably. I've got an Intel > > > > > dmesg says: > > cm: version v1.1 time 21:09:15 Mar 7 2000 > > cm: found CM8738 adapter at io 0xcc00 irq 3 > >David, > >Based on the information you listed from dmesg, It appears your sound card is >using interupt 3 and Base memory at cc00. The base Memory address listed >falls directly in a commonly used memory range for Network adaters. This may >or may not be an issue as Network cards can be found at adresses of c000 to >dd00, and even into the E000 area. > >It would probably be best to move the sound card to IRQ5 which is the legasy >IRQ for sound cards. My reasoning for this is that your system probably has 2 >Serial ports and posibly a modem. In Pre Plug-N-Play times, Serial ports 1 & >3 referred to as COM1 and COM3 shared IRQ 4 while Serial Ports 2 & 4 referred >to as COM2 and COM4 shared IRQ3. If you have 2 serial ports, it is most >likely that at least one of them is using IRQ 3 thus causing a resource >conflict. If you have an internal modem, then this can further complicate the >issue as it will provide it's own Serial Port, placing itself usually on IRQ >3 or 4. With the introduction of Plug-N-Play (PNP) IRQs and Base I/O >Addresses and Base Memory Addresses are now up for grabs. Modems can find >themselves on virtually any of the non-reserved IRQs, etc... > >Long disertation to basically explain that you could simply disable your >second Serial port in CMOS and remove any modems to see if the issue resolves >itself. Ultimately, you will want to move the Sound card to IRQ 5. This may >be possible thru the CMOS setup utility burned into your BIOS or by using the >driver/utility disk that came with your system/system board. > >I hope this helps. > >Thanks, > >Jeffrey A. McCright