Bug#508685: linux-image-2.6.26-1-amd64: Cannot mute cx8800 v4l card

[Moritz Muehlenhoff <jmm@inutil.org>]

On Sun, Dec 14, 2008 at 04:32:22AM +0100, Stefan Ott wrote:
> Package: linux-image-2.6.26-1-amd64
> Version: 2.6.26-11
> Severity: normal
> 
> 
> Hi
> 
> I cannot seem to mute my cx8800 tv/radio tuner card (tried with various radio
> applications). The commands run without errors (eg. "radio -c /dev/radio0 -qm")
> but the card keeps sending audio. Reloading the kernel module doesn't help
> either, it only resets the tuner's frequency.
> 
> If I manually set the tuner type (eg. using radio=59 or radio=61), muting
> suddenly seems to work - unfortunately, this breaks tuning (ie. i get white
> noise when i start the radio application but as soon as i change frequency all
> audio stops).
> 
> IMHO this means that there might have to be a new tuner type, using the tuning
> mechanism from the auto-detected type and muting/unmuting from type 59 or 61.
> 
> My lspci entries for the card are:
> 
> 	05:04.1 Multimedia controller [0480]: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [Audio Port] [14f1:8811] (rev 03)
> 		Subsystem: Hauppauge computer works Inc. Hauppauge WinTV 34xxx models [0070:3401]
> 
> (for details, see below)

Does this still occur with more recent versions of the kernel?

Cheers,
        Moritz