Same issue here, running 9.10. It happens more often on restarts than shutdowns. lspci:
00:00.0 Host bridge: nVidia Corporation MCP79 Host Bridge (rev b1) 00:00.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1) 00:03.0 ISA bridge: nVidia Corporation MCP79 LPC Bridge (rev b2) 00:03.1 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1) 00:03.2 SMBus: nVidia Corporation MCP79 SMBus (rev b1) 00:03.3 RAM memory: nVidia Corporation MCP79 Memory Controller (rev b1) 00:03.5 Co-processor: nVidia Corporation MCP79 Co-processor (rev b1) 00:04.0 USB Controller: nVidia Corporation MCP79 OHCI USB 1.1 Controller (rev b1) 00:04.1 USB Controller: nVidia Corporation MCP79 EHCI USB 2.0 Controller (rev b1) 00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1) 00:09.0 PCI bridge: nVidia Corporation MCP79 PCI Bridge (rev b1) 00:0b.0 SATA controller: nVidia Corporation MCP79 AHCI Controller (rev b1) 00:10.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1) 00:15.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1) 00:16.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1) 00:17.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1) 00:18.0 PCI bridge: nVidia Corporation MCP79 PCI Express Bridge (rev b1) 04:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M G] (rev b1) 05:00.0 SD Host controller: Ricoh Co Ltd Device e822 (rev 01) 05:00.1 System peripheral: Ricoh Co Ltd Device e230 (rev 01) 05:00.2 System peripheral: Ricoh Co Ltd Device e852 (rev 01) 0b:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03) 0d:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01) 0e:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller -- speakers pop on suspend, shutdown, restart https://bugs.launchpad.net/bugs/352540 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs