[Bug 596489] [NEW] Only one speaker sounds on asus K50in (mcp79 chipset)

retimer retimer at list.ru
Sun Jun 20 09:46:05 UTC 2010


Public bug reported:

I'm running Lucid with latest updates on Asus K50IN. When using laptop's speakers, only the right one works. When using headphones, only the left one works.
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 b3)
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)
02:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce G102M] (rev b1)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
04:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

lshw -C sound
  *-multimedia            
       description: Audio device
       product: MCP79 High Definition Audio
       vendor: nVidia Corporation
       physical id: 8
       bus info: pci at 0000:00:08.0
       version: b1
       width: 32 bits
       clock: 66MHz
       capabilities: pm bus_master cap_list
       configuration: driver=HDA Intel latency=0 maxlatency=5 mingnt=2
       resources: irq:21 memory:fae78000-fae7bfff

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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Only one speaker sounds on asus K50in (mcp79 chipset)
https://bugs.launchpad.net/bugs/596489
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