Takashi Iwai wrote On 12-07-2008 00:25:> At Fri, 11 Jul 2008 09:31:59 +0300,> Ozan Çağlayan wrote:> >> Takashi Iwai wrote On 11-07-2008 20:54:>> >>> To make sure: bdl_pos_adj=32 or higher doesn't work, too?>>> Also, if you set bdl_pos_adj=0, do you get any warning messages?>>>>>> It's fine to take bdl_pos_adj=0 as default for Nvidia chips. But,>>> basically this value (when it's big enough) shouldn't disable the>>> sound at all.>>> >>> >> I've tried the values (2,8,16,32,64,128,256,1024,2048,4096,8192).>> When the parameter is set to 2048,4096 or 8192, here's the dmesg message >> we get:>>>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> hda-intel: IRQ timing workaround is activated for card #0. Suggest a >> bigger bdl_pos_adj.>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>> ALSA ../alsa-kernel/pci/hda/hda_intel.c:1056: Too big adjustment 4096>>>> The sound works well with those values.>> >> It's because bdl_pos_adj=0 is taken as fallback.>> >> The other small values avoid pulse to work correctly with ALSA.>> >> What about other applications? Could you run ALSA apps, e.g. aplay,> without pulse?> Yes. I can play an mp3 file with mplayer, using alsa output.Without pulse everything was already fine..> >> When the parameter is set 0, the sound works well and the driver outputs >> this message:>> hda-intel: IRQ timing workaround is activated for card #0. Suggest a >> bigger bdl_pos_adj.>> >> So, it means that the problem still exists. The driver delays the> call of snd_pcm_period_elapsed() with a busy loop. The bdl_pos_adj> adds a constant delay, OTOH.> So If I resume a little bit what we have now: - On a system which does not use pulseaudio, the chipset works with 1.0.16 and all 1.0.16 RC's.- On a system using pulseaudio, it's impossible to get sound when using 1.0.17rc2 and 1.0.17rc3 if bdl_pos_adj is not explicitly set to 0. dmesg output contains also these two lines when the module is loaded: ACPI: PCI Interrupt 0000:00:10.1[B] -> Link [AAZA] -> GSI 22 (level, low) -> IRQ 22hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj. -- Ozan Çağlayan _______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
