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Thread: No sound, fresh 12.04 install

  1. #1
    Join Date
    Feb 2013

    Sound issue: External speakers not working

    Dear everyone,

    I recently decided to install Ubuntu 12.04 LTS on my almost 3 year-old laptop (Dell studio 1747, specifics below). I encountered some problems, most of which were solved by updates and driver installs. However, one remains: I cannot use external speakers.

    The built-in speakers on my laptop work fine. When I plug in the 3,5mm jack plug, sound settings shows them as ' headphones', and the volume output even changes, so it definititely detects them. They just refuse to make a sound.

    The speakers and the two jack ports on my laptop are fine. They've always worked while windows 7 was on there. I even tested them using windows after installing ubuntu, and they still do.

    The speakers are a fairly cheap Thrust 2:1 set. I forgot the type. Laptop is connected to sub, sub is connected to speakers. I see sound settings has actually set subwoofer volume to minimum, but I cannot change it.

    Any help would be greatly appreciated. If any more info is needed, let me know.


    P.S. How can I get Ubuntu to show a list of hardware, equivalent to Windows' device manager?

    CPU: Intel Core i7 Q720 @1,6 GHz
    Mainbord: Intel PM55
    RAM: 4,00 GB DDR3 – 1333 MHz
    GPU: ATI Mobility Radeon HD 4650
    Harddisk: Seagate Momentus 7200.4 ST9500420ASG, 500GB 7200 RPM
    Display: 17,3 inch 16:9 1600x900
    Network: Dell wireless 1397 WLAN-mini
    Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
    Sound: Not sure. According to the internet: IDT 92HD73C1 / 92HDW74C1 / 92HDW74C2 @ Intel Ibex Peak PCH - High Definition Audi Controller
    Optical Drive: HL-DT-ST DVD+-RW GA11N
    Battery: 56Wh Lithium-Ion 6 cell
    OS: Windows 7 professional x64
    Ubuntu 12.04 LTS x64
    Last edited by Kenbeek; February 11th, 2013 at 06:58 PM.

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