I just did a fresh fc 3 from CDs. No errors or warnings. After rebooting as instructed, I did the sound test on the displayied sound card. Sound great.
I logged is as "user" did another test on the sound card. Still great. I then logged out, changed the "session" to KDE and logged in again as "User". Immediatly I got background hash from the speakers. The test on the sound card had a large amount of background hash as well as the test sounds. Logged out again, changed the "session" back to Gnome. Logged in again as "user" but this time I still had the back ground noise.
The only thing I have done since is to upgrade the "udev" file. No help.
below is the output from "/sbin/lspci" file as someone suggested on one of the forums.
[root@localhost pete]# /sbin/lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev 03)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
00:03.0 Modem: PCTel Inc HSP MicroModem 56 (rev 02)
00:04.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
00:05.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 04)
00:14.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22)
00:14.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 10)
00:14.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 10)
00:14.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 10)
00:14.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
01:00.0 VGA compatible controller: nVidia Corporation NV6 [Vanta/Vanta LT] (rev 15)
I had "disabled" the "VIA" card in the "BIOS" before I installed Fedora.
The "Ensonig" card, a "Creative Sound Blaster" card is the one the sound tests were run on.