Het probleem is opgelost omdat ik onderstaande heb uitgevoerd en/of op de juiste plek heb ingetikt en opgeslagen:
tar -xzf patch_realtek_mitac8227.tar.gz
rm alsa-driver-1.0.16/sound/pci/hda/patch_realtek.c
mv patch_realtek.c alsa-driver-1.0.16/sound/pci/hda/
cd alsa-driver-1.0.16/
./configure --with-cards=hda-intel --with-oss=yes
make
sudo rm /lib/modules/`uname -r`/ubuntu/sound/alsa-driver/pci/hda/snd-hda-intel.ko
cp pci/hda/snd-hda-intel.ko /lib/modules/`uname -r`/ubuntu/sound/alsa-driver/pci/hda/
sudo gedit /etc/modprobe.d/alsa-base
*** put in the end ***
options snd-hda-intel model=mitac
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
alias sound-slot-0 snd-card-0
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
In ieder geval bedankt voor het meedenken.
Groeten,