G
Guest
Hi,
I did a Windows Update (ie. WU) on a PC today and it hosed the audio.
Actually, I tried this back in December of 2005, it hosed the audio, and I
just did a “Rollback†on the “C-Media AC97†driver. Today I decided to see if
I could get to the bottom of this.
Asin December, today WU detected the sound card as a “C-Media AC97†and
suggested that an updated driver was available. After the update and the
suggested reboot the audio was gone.
I researched this and apparently WU is incorrectly detecting this particular
chipset as “C-Media AC97â€. In reality, the chipset is “Realtek AC97â€. For a
discussion of this problem and resolution please see
http://www.annoyances.org/exec/forum/winxp/t1057893747 .
In short, the discussion’s fix is to <do a Restore Point first> uninstall
the C-Media AC97 driver via Device Manager, do not reboot, then immediately
install the correct driver set (ie. WDU_A390.zip or exe) from
http://www.realtek.com.tw/downloads/dlac97-2.aspx?series=8&Software=True ,
then reboot as suggested.
My personal additions to the “fix†are:
1) before doing anything, do a Restore Point.
2) After installing WDU_A390 and rebooting, you will need to manually remove
a couple of the old C-media tombstones, as follows:
a. Delete "Cmaudio"="RunDll32 cmicnfg.cpl,CMICtrlWnd" from the Run key.
b. Search for cmicnfg.cpl and delete it as well.
c. Restart again
I think we can safely say, that if you lose sound after allowing WU’s
C-Media driver to be installed, the audio chipset has been incorrectly
detected as a C-Media at some time in the past. I noticed that after doing
the “fixâ€, the device manager correctly shows the sound device as “Realtek
AC97†(not C-Media AC97 as before).
For what that’s worth. . .
Regards,
Brcobrem
I did a Windows Update (ie. WU) on a PC today and it hosed the audio.
Actually, I tried this back in December of 2005, it hosed the audio, and I
just did a “Rollback†on the “C-Media AC97†driver. Today I decided to see if
I could get to the bottom of this.
Asin December, today WU detected the sound card as a “C-Media AC97†and
suggested that an updated driver was available. After the update and the
suggested reboot the audio was gone.
I researched this and apparently WU is incorrectly detecting this particular
chipset as “C-Media AC97â€. In reality, the chipset is “Realtek AC97â€. For a
discussion of this problem and resolution please see
http://www.annoyances.org/exec/forum/winxp/t1057893747 .
In short, the discussion’s fix is to <do a Restore Point first> uninstall
the C-Media AC97 driver via Device Manager, do not reboot, then immediately
install the correct driver set (ie. WDU_A390.zip or exe) from
http://www.realtek.com.tw/downloads/dlac97-2.aspx?series=8&Software=True ,
then reboot as suggested.
My personal additions to the “fix†are:
1) before doing anything, do a Restore Point.
2) After installing WDU_A390 and rebooting, you will need to manually remove
a couple of the old C-media tombstones, as follows:
a. Delete "Cmaudio"="RunDll32 cmicnfg.cpl,CMICtrlWnd" from the Run key.
b. Search for cmicnfg.cpl and delete it as well.
c. Restart again
I think we can safely say, that if you lose sound after allowing WU’s
C-Media driver to be installed, the audio chipset has been incorrectly
detected as a C-Media at some time in the past. I noticed that after doing
the “fixâ€, the device manager correctly shows the sound device as “Realtek
AC97†(not C-Media AC97 as before).
For what that’s worth. . .
Regards,
Brcobrem