I have just done as 'apt-get dist-upgrade' on my xubuntu (mythubuntu) box and now I have no sound. I tried exiting the front end and adding a mixer applet but when I try to use it I get 'GStreamer was unable to detect any sound devise...'. alsamixer reports 'canot open mixer:no such file or directory' here is the lspci: 00:00.0 Host bridge: VIA Technologies, Inc. K8T890CF Host Bridge 00:00.1 Host bridge: VIA Technologies, Inc. VT3351 Host Bridge 00:00.2 Host bridge: VIA Technologies, Inc. VT3351 Host Bridge 00:00.3 Host bridge: VIA Technologies, Inc. VT3351 Host Bridge 00:00.4 Host bridge: VIA Technologies, Inc. VT3351 Host Bridge 00:00.5 PIC: VIA Technologies, Inc. VT3351 I/O APIC Interrupt Controller 00:00.6 Host bridge: VIA Technologies, Inc. Device 6238 00:00.7 Host bridge: VIA Technologies, Inc. VT3351 Host Bridge 00:01.0 PCI bridge: VIA Technologies, Inc. [K8T890 North / VT8237 South] PCI Bridge 00:02.0 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.0 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.1 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.2 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.3 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:0f.0 IDE interface: VIA Technologies, Inc. VT8237A SATA 2-Port Controller (rev 80) 00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 07) 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev a0) 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev a0) 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev a0) 00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev a0) 00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86) 00:11.0 ISA bridge: VIA Technologies, Inc. VT8237A PCI to ISA Bridge 00:11.7 Host bridge: VIA Technologies, Inc. VT8251 Ultra VLINK Controller 00:13.0 PCI bridge: VIA Technologies, Inc. VT8237A Host Bridge 00:13.1 PCI bridge: VIA Technologies, Inc. VT8237A PCI to PCI Bridge 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 02:00.0 VGA compatible controller: nVidia Corporation G71 [GeForce 7300 GS] (rev a1) 06:00.0 SATA controller: Marvell Technology Group Ltd. 88SE6121 SATA II Controller (rev b1) 07:07.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder (rev 05) 07:07.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05) 07:07.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05) 07:08.0 Ethernet controller: D-Link System Inc DGE-528T Gigabit Ethernet Adapter (rev 10) 07:09.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder (rev 05) 07:09.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05) 07:09.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [IR Port] (rev 05) 08:01.0 Audio device: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 10) Any ideas? Ben