[Bug 235275] New: Sound problems with Alsa and Intel8x0 (82801) - wobbly audio
https://bugzilla.novell.com/show_bug.cgi?id=235275 Summary: Sound problems with Alsa and Intel8x0 (82801) - wobbly audio Product: openSUSE 10.2 Version: Final Platform: 32bit OS/Version: All Status: NEW Severity: Normal Priority: P5 - None Component: Sound AssignedTo: tiwai@novell.com ReportedBy: davidgiles@f2s.com QAContact: qa@suse.de OpenSUSE 10.2 installed on a Toshiba A50 laptop. Hardware reports as: Toshiba America Info 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller Playing sound via aplay, ie: aplay /usr/share/sounds/alsa/test.wav Will, randomly, result in 'wobbly' playback - slight pitch shifts, slowing down. This appears to be random; sometimes Ogg files can be played error-free for some time (Amarok), other times playing any audio straight after bootup will result in wobbly sound. I've tried an install several times - the problem persists. I've also patched Alsa to 1.0.13 - problem persists. Also tried playback with ac97_clock=48000 - problem persists. This hardware has worked fine with SUSE 9.x and OpenSUSE 10.[0|1]. Is this a known issue? Is there a fix for this? Let me know if there are any logs/tracing I can produce to assist. Many thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #1 from davidgiles@f2s.com 2007-01-16 03:39 MST ------- Additional info: Does not appear to be linked to CPU usage. Can happen with just Amarok running (CPU usage 4%). Conversely, audio playback can work fine whilst cpu usage at 100%. Apologies for the reproducibility of the bug, however it does seem to be totally random. Many thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #2 from tiwai@novell.com 2007-01-16 03:55 MST ------- Hm, it's hard to debug, honestly. I've not heard much about such problems. IIRC, there were some problems with cpufreq. Is it your case, too? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 tiwai@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO Info Provider| |davidgiles@f2s.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #3 from davidgiles@f2s.com 2007-01-16 04:08 MST ------- Hi, That's understandable - it can run for some time before it starts to happen. I've checked some logs - /var/log/messages and dmesg - but there's no indication of anything untoward going on. Worst sort of problem, really. I'm not aware of any cpufreq problems - how were these manifesting themselves? Interesting - it could be a timing/clock issue somewhere (hence no errors being reported, as alsa thinks it's working fine). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #4 from tiwai@novell.com 2007-01-16 04:16 MST ------- You can adjust the powersave setting via yast to avoid lowerning cpu freq. If this helped -- well, then still difficult to fix properly ;) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #5 from davidgiles@f2s.com 2007-01-16 04:24 MST ------- Ah - right! Ok - I'm not in a position to test this right now. I'll update in six hours or so. Many thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #6 from davidgiles@f2s.com 2007-01-16 10:41 MST ------- Created an attachment (id=113171) --> (https://bugzilla.novell.com/attachment.cgi?id=113171&action=view) wobbly audio file - by way of an example Hi, I've recorded this using Krecord whilst playing the test.wav using aplay - just to give you an idea of the problem. Many thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #7 from davidgiles@f2s.com 2007-01-16 11:01 MST ------- Hi, I've set the CPU frequency policy to performance (in KPowerSave) and confirmed that the CPU speed is pinned at 1500MHz. However, this doesn't appear to solve the problem. Monitoring other aspects of the system at the moment - I'll post back. Many thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #8 from davidgiles@f2s.com 2007-01-16 11:05 MST ------- Including sound part of hardware config for completeness: 21: PCI 1f.5: 0401 Multimedia audio controller [Created at pci.286] UDI: /org/freedesktop/Hal/devices/pci_8086_24c5 Unique ID: W60f.3klTCwbWI_3 SysFS ID: /devices/pci0000:00/0000:00:1f.5 SysFS BusID: 0000:00:1f.5 Hardware Class: sound Model: "Toshiba America Info 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x24c5 "82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller" SubVendor: pci 0x1179 "Toshiba America Info Systems" SubDevice: pci 0x0412 Revision: 0x03 Driver: "Intel ICH" Driver Modules: "snd_intel8x0" I/O Ports: 0x1000-0x10ff (rw) I/O Ports: 0x1400-0x143f (rw) Memory Range: 0x3a080800-0x3a0809ff (rw,non-prefetchable) Memory Range: 0x3a080a00-0x3a080aff (rw,non-prefetchable) IRQ: 11 (175374 events) Module Alias: "pci:v00008086d000024C5sv00001179sd00000412bc04sc01i00" Driver Info #0: Driver Status: i810_audio is not active Driver Activation Cmd: "modprobe i810_audio" Driver Info #1: Driver Status: snd_intel8x0 is active Driver Activation Cmd: "modprobe snd_intel8x0" Config Status: cfg=yes, avail=yes, need=no, active=unknown -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275 ------- Comment #9 from davidgiles@f2s.com 2007-01-16 12:48 MST ------- Hi, I've manually created a file and cat'd this into /dev/audio whilst monitoring it with the spectrum analyzer in KWaveView. The wobbly-sound issue doesn't seem to be impacting this. (this is working outside of Alsa?) I'm not sure I'd have too much success compiling Alsa up in debug mode - is it possible you could supply me with a tarball (or similar) with debug enabled? Thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=235275#c10
Stephan Kulow
https://bugzilla.novell.com/show_bug.cgi?id=235275#c11
Takashi Iwai
https://bugzilla.novell.com/show_bug.cgi?id=235275
User aj@novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=235275#c12
Andreas Jaeger
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