Added Clemens and alsa-devel to Cc. At Mon, 18 Aug 2008 19:22:20 +0400, Dmitry Butskoy wrote: > > Hi, > > Recently snd-bt87x driver has started to use CTL_A_PWRDN bit, see > http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commitdiff;h=950fb626dc28e17ae4ad01dba07957bdc6e0b997 > > Unfortunately, it produces a regression, at least in my case. > > I have "AVerMedia TVPhone 98" card, lspci is: > > 03:05.0 Multimedia video controller: Brooktree Corporation Bt878 Video > > Capture (rev 11) > > 03:05.1 Multimedia controller: Brooktree Corporation Bt878 Audio > > Capture (rev 11) > My card has no additional chip for digital sound, hence only analog is > available. > > After upgrading from 2.6.23 to 2.6.25, I have discovered no more sound > from my snd-bt87x device. Considering the code changes in the dirver, > I've guessed that it could be some power issues. > > Compiling the newest driver without CTL_A_PWRDN (ie. with that changes > reverted back) I got the sound back again. > > Note, that it is not enough to rmmod the old module and insmod the new. > I have to reboot computer completely with the new driver to take changes > in effect. This is a nasty problem. Reloading the module doesn't fix means that the PCI enable/disable process also doesn't suffice... Do you see any difference in PCI register space between the fresh boot and the silent state? thanks, Takashi > > > I can perform any tests, debug etc. if needed. > > > Regards, > Dmitry Butskoy > http://www.fedoraproject.org/wiki/DmitryButskoy > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
