At Wed, 29 Jul 2009 15:06:02 +0200, Christian Steffen wrote: > > Hello to all subscribers, > > > I'm new to this list and will start directly with my problem: > > I'm running some ubuntu linux on a device called "o2 Joggler", which is a > digital picture frame with touchscreen control. > Its chipsets are from intel, the cpu is an intel atom, and the other > hardware devices are controlled by an Intel System Controller Hub "Poulsbo". > > I'm running kernel 2.6.30 and the newest alsa version 1.0.20. > > This is lscpi output: > >>00:1b.0 Audio Device: Intel Corporation System Controller Hub (SCH > Poulsbo) HD Audio Controller (rev 07) > > cat proc/asound/cards: > >>0 [MID ]: HDA-Intel - HDA Intel MID > >> HDA Intel MID at 0xd01c000 irq 16 > > The Codec is a > >>Sigmatel STAC9202 > > > My problem is, that sound is working, but has constant clicking noise in the > background, also if the sound is completely muted. > First I thought this sound would come from some hdd or whatever, but the > device has no mechanical parts. But this is what it sounds like - Irregular > clicking noise. > > This noise immediately starts during boot up as soon as the module is loaded > and before X11 has started. > I already tried options like "position_fix=1 or 2" and different > "model="-options with no success. > "position_fix" didn't do anything at all and different model-options have > muted the device completely. > > > Has someone any idea to get this working? > The device comes with an own (hardly) closed linux which runs a 2.6.24 > kernel - here sound is working with no problems at all. Is the older kernel as is even with the same user-space stuff? If so, run alsa-info.sh (with --no-upload option) and save the content. Then run with the newer kernel and save the content. Attach both files to compare. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
