Re: FC5 - Intel 82801G - High Definition Audio

[Marcel Groner]

Hi Andy

Thanks for your post. I tried the following but it still doesn't work:

changed my /etc/modprobe.conf to:

alias snd-card-0 snd-hda-intel
options snd-card-0 index=0
options snd-hda-intel index=0 model=laptop-eapd
remove snd-hda-intel { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; 
}; /sbin/modprobe -r --ignore-remove snd-hda-intel position_fix=1

do you have the same configuration? (except the single_cmd option, see 
below)

single_cmd option

options snd-hda-intel index=0 single_cmd=1 model=laptop-eapd

I got the message (dmesg) that single_cmd could not be found in 
snd-hda-intel driver.

with original FC5 alsa drivers (1.0.11-4.rc2) I still get this high 
frequency tone and if I upgrade to 1.0.11-1.rc4.FC5.test there is no 
sound at all. What kind of alsa-build did u use and where did you get it?

Marcel

Andy Green wrote:
>  Marcel Groner wrote:
> > Hi guys
> >
> > I've got a Samsung Q35 - Centrino Duo. Check out my page
>  
> > does anyone know how to fix that issue?
>  
>  Yes I posted this advice last week --->
>  
>  -Andy
>  
>  
>  
>  Hi Mike -
>  
>  I have one of these beasties now, here are some additional notes.  I 
>  appreciated your original documentation and advise so maybe some of this 
>  can help yourself or someone else.
>  
>  
>  Suspend works most of the time, it requires Ctrl-Alt-F1 and then 
>  Ctrl-Alt-F7 to get video back.  Hibernate proceeds correctly, but on 
>  reboot the hibernation data is ignored and it boots as if from cold.
>  
>  By default the audio does not work well.  There is a high frequency tone 
>  while the audio is active and changing mixer settings while audio active 
>  destroys audio until next boot.  I updated to the latest Alsa drivers, 
>  and added the following to /etc/modprobe.conf
>  
>  options snd-hda-intel index=0 single_cmd=1 model=laptop-eapd
>  
>  On reboot sound is great.  There does not seem to be an internal mic but 
>  the external mic jack also works after this.  I don't know if the alsa 
>  upgrade was necessary because I found this solution after it.
>  
>  WPA/WPA2 can be made to work using wpa_supplicant.  I got it working 
>  first by hand, then discovered the wpa_supplicant already existed in FC5 
>  as a service with integration into ifup and ifdown, so chkconfig 
>  wpa_supplicant on will help.  TKIP support has a problem, I found 
>  setting my wireless router to WPA2 AES avoided the problem.  Wireless is 
>  then very solid.
>  
>  When setting your WPA key, note you have to encode the key first using 
>  wpa_passphrase before sticking it in 
>  /etc/wpa_supplicant/wpa_supplicant.conf
>  
>  wpa-supplicant needs to be told the ipw3945 device is to be communicated 
>  with using -D wext protocol.
>  
>  I can't get NetworkManager to recognize that wlan0 exists as an 
>  interface, despite that system-config-networking knows about it.
>  
>  I killed tap to click on the synaptics touchpad by adding
>  
>     Option "SHMConfig" "yes"
>     Option "MaxTapTime" "0"
>  
>  to the Input Device / Synaptics part of /etc/X11/xorg.conf
>  
>  I was only able to get vesa xorg support to work so far, but you can 
>  select 1280x800 layout after setting a generic LCD monitor of 1280x800 
>  resolution.  This is the main deficit left now, no xv.
>  
>  
>  In general it was pretty encouraging.  The chipset in the laptop is very 
>  new but everything works to a greater or lesser extent, most of it to 
>  the greater extent.  In a way that makes a new rod for Fedora's back 
>  because it is so close to perfect that the remaining annoyances are 
>  correspondingly more annoying...
>  
>  -Andy
>