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Audio Fix for Samsung 535u3c and Lubuntu/Ubuntu

I recently bought a Samsung Series 5 Ultrabook Model 535u3c, which is powered by an AMD Dual-Core A6-4455M with 7500 Radeon Graphics to replace my 3 years running aging Benq netbook (which is admittedly physically banged up enough with lots of abuse). It’s cheap and fast enough for programming/development use and you can play games on the side too, as it’s IGP is adequate enough for casual gaming use (better than an Intel Graphics Processor), and the Windows 7 64bit edition is running really well (much better than Vista actually and starts up faster too)

I have decided to run Lubuntu 64Bit under Wubi, as I couldn’t care any less for Ubuntu’s hourrible Unity (I hate Unity with a passion, as Gnome 3 and the main Ubuntu has been a pain in the neck for productivity/performance wise).

I intend to use this linux partition for Groovy/Grails and LAMP development.

Bluetooth (been using my bluetooth mouse), network and wireless works as expected with this machine as well as running VPN connections for work and leisure (and using my iPad VPN paid service too on this machine with no problems).

One thing that bothered me was the problem of the sound system not choosing the proper sound card (it always defaults to the HDMI ATI port) and that was a problem especially for applications that doesn’t have a setting for choosing the proper sound subsystem (namely the Adobe Flash Plugin).

Here’s how I solved the problem:

Run aplay to list all playback hardware devices:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0

Create/edit asound.conf in the /etc directory
$ sudo nano /etc/asound.conf

pcm.!default{
type plug slave.pcm{
type hw card 1 device 0
}
}

I used card #1 and device 0 (which is the analog sound card) for the system to recognize this card as the default sound card.

Reboot.

$ sudo reboot

Update:
There is an alternate configuration for asound.conf, which should work better for some laptop configurations:

defaults.ctl.card 1
defaults.pcm.card 1
defaults.timer.card 1

 
 

One comment
  1. vad

    Hi!
    I think about buying this laptop, but have doubt. Currently my stuff is Kubuntu on MSI x370 with AMD E450. It is cool, but have few cons, such as ACPI problem(when waking from suspend on battery it goes hibernate then), no multitouch on touchpad, SD-reader conflicts with USB, no possibility to turn WiFi/bluetooth if it was off on startup.
    So can you please tell about WiFi and touchpad?
    And does it really work for just 4(or so) hours?
    Thank you!
    P.S. Sorry for my English, it’s not my native lang

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