A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2016> ====================================================================== Reported By: Ensnared Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 2016 Category: PCI - intel8x0 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Ubuntu 5.10 "Breezy Badger" Kernel Version: 2.6.x ====================================================================== Date Submitted: 04-12-2006 04:40 CEST Last Modified: 05-30-2006 10:40 CEST ====================================================================== Summary: Choppy/skippy sound on onboard SiS SI7012-controller Description: The sound on my specific sound controller is very bad. The times it even plays, the quality is very choppy and it skips almost like a scratched CD, which makes it pretty much unusable. I suspect this might be specific for my model laptop as I'm having a hard time finding anyone else with the same problem, but I've tried several distros and kernel versions, and the card works in Windows. The laptop is an Elite Group G732, which has a SiS mainboard chipset with the SI7012 onboard controller (Realtek ALC202 chip). I've tried messing with the buffer_size and period_size in asound.conf, which seem to have some impact on the "pattern" of the chopping and skipping, but there are no values that I've found that will get rid of them entirely. I'm assuming this is an incompatibility with the driver and this specific hardware, but I could obviously be wrong. I've tried using the version of ALSA in the 2.6.10, 2.6.12 and 2.6.16.2 kernels, as well as compiled the latest stable and developement releases of ALSA myself. The result is the same for them all. ====================================================================== ---------------------------------------------------------------------- Ensnared - 05-15-06 00:29 ---------------------------------------------------------------------- Just installed Alsa 1.0.11 and there's no change, same problem as already described. Is there some kind of obscure module parameter that can have some impact? I've tried buggy_irq=1, ac97_quirk=1 and buggy_semaphore=1, neither of which helped at all - buggy_semaphore made the driver not work at all, but other than that there was no difference. ---------------------------------------------------------------------- razorbroom - 05-30-06 10:40 ---------------------------------------------------------------------- I've been using 1.0.11 as well. Tried configuring a new kernel from scratch just in case I had some bizarre option checked. Same problems. Turned off ACPI and APM in the kernel and still have the same symptoms although the error messages are a bit different: ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -450, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -1110, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -537, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -1106, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -550, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -536, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -1095, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -552, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -1110, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -538, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -538, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -565, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -1106, max jitter = 4456): wrong interrupt acknowledge? ALSA sound/core/pcm_lib.c:254: Unexpected hw_pointer value [2] (stream = 0, delta: -1106, max jitter = 4456): wrong interrupt acknowledge? After much googling I read that high deltas are usually indicative of ACPI errors... but this is when it's turned off. So I'm at a loss once since nobody has even denied this being an ALSA problem. Issue History Date Modified Username Field Change ====================================================================== 04-12-06 04:40 Ensnared New Issue 04-12-06 04:40 Ensnared Distribution => Ubuntu 5.10 "Breezy Badger" 04-12-06 04:40 Ensnared Kernel Version => 2.6.x 04-12-06 06:57 razorbroom Note Added: 0009239 04-13-06 21:47 Ensnared Note Added: 0009271 04-13-06 22:06 Ensnared Note Added: 0009276 04-23-06 06:31 razorbroom Note Added: 0009440 04-23-06 06:32 razorbroom Issue Monitored: razorbroom 04-27-06 22:04 Ensnared Note Added: 0009536 05-15-06 00:07 Ensnared Note Added: 0009811 05-15-06 00:29 Ensnared Note Edited: 0009811 05-30-06 10:40 razorbroom Note Added: 0010018 ====================================================================== _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
