Comment 9 for bug 145921

I think I have the same problem.

I checked the system log and saw this:

Jun 29 16:15:10 Inspiron kernel: [ 3077.279378] pccard: CardBus card inserted into slot 0
Jun 29 16:15:10 Inspiron kernel: [ 3077.279577] PCI: Enabling device 0000:03:00.0 (0000 -> 0002)
Jun 29 16:15:10 Inspiron kernel: [ 3077.279588] ACPI: PCI Interrupt 0000:03:00.0[A] -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 11
Jun 29 16:15:10 Inspiron kernel: [ 3077.325342] ALSA /build/buildd/linux-ubuntu-modules-2.6.24-2.6.24/debian/build/build-generic/sound/alsa-driver/pci/echoaudio/echoaudio.c:47: get_firmware(): Firmware not available (-2)
Jun 29 16:15:10 Inspiron kernel: [ 3077.325384] ACPI: PCI interrupt for device 0000:03:00.0 disabled
Jun 29 16:15:10 Inspiron kernel: [ 3077.325405] Echoaudio Indigo IO: probe of 0000:03:00.0 failed with error -2
Jun 29 16:15:10 Inspiron firmware_helper[8738]: main: error loading '/lib/firmware/ea/indigo_io_dsp.fw' for device '/devices/pci0000:00/0000:00:1e.0/0000:02:01.0/0000:03:00.0/firmware/0000:03:00.0' with driver '(unknown)'
Jun 29 16:15:10 Inspiron NetworkManager: <debug> [1214770510.352721] nm_hal_device_added(): New device added (hal udi is '/org/freedesktop/Hal/devices/pci_1057_3410').

Installed alsa-tools-gui, which came up in a search for "echo" but that doesn't work:

> echomixer
No Echoaudio cards found, sorry.

> uname -a
Linux Inspiron 2.6.24-19-generic #1 SMP Wed Jun 18 14:43:41 UTC 2008 i686 GNU/Linux