In my case I had to patch the install script given in the Realtek package (I had version 5.18):
tar -xvjf LinuxPkg_5.18.tar.bz2
cd Rt-Linux-HDaudio-5.18/
... then edit file 'install', and change the line
cd alsa-driver-RTv5.18
into
cd alsa-driver-RTv5.18/alsa
then run install script:
sudo ./install
reboot for the changes to take effect (I guess you could try something like "sudo alsa force-reload" instead). Afterwards, plugging / unplugging headset should work flawless. Also these new driver should handle better the bass speaker on the Vostro 3750 (now the bass speaker and speaker volume are sync'ed - in alsa mixer, there is actually no more separate volume for bass speaker, just a toggle to enable / disable it).
On Ubuntu 12.04 LTS, I solved this issue perfectly on the Vostro 3750 simply by updating to the latest Realtek drivers from
http:// www.realtek. com.tw/ downloads/ downloadsView. aspx?Langid= 1&PNid= 24&PFid= 24&Level= 4&Conn= 3&DownTypeID= 3&GetDown= false#High% 20Definition% 20Audio% 20Codecs.
(this page is referenced from https:/ /help.ubuntu. com/community/ HdaIntelSoundHo wto, scroll to the end).
In my case I had to patch the install script given in the Realtek package (I had version 5.18):
tar -xvjf LinuxPkg_ 5.18.tar. bz2 HDaudio- 5.18/
cd Rt-Linux-
... then edit file 'install', and change the line
cd alsa-driver-RTv5.18
into
cd alsa-driver- RTv5.18/ alsa
then run install script:
sudo ./install
reboot for the changes to take effect (I guess you could try something like "sudo alsa force-reload" instead). Afterwards, plugging / unplugging headset should work flawless. Also these new driver should handle better the bass speaker on the Vostro 3750 (now the bass speaker and speaker volume are sync'ed - in alsa mixer, there is actually no more separate volume for bass speaker, just a toggle to enable / disable it).