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| === smb` is now known as smb | ||
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| nessita | hello everyone. diwic, re: bug # 1201528, on Saturday I installed a fresh precise, and audio broke when I installed the raring kernel. Verbose pulseaudio log attached to the bug | 12:01 |
|---|---|---|
| diwic | nessita, yeah, I saw. So, it looks like the kernel is at fault here... | 12:02 |
| nessita | diwic, apparently... | 12:02 |
| nessita | diwic, I still have the installation on a separated partition, so if you need me to run more tests, just let me know | 12:03 |
| diwic | nessita, I guess rtg could set up a git bisect between 3.2 and 3.8 for you | 12:06 |
| nessita | diwic, sounds good | 12:06 |
| nessita | diwic, do we have a newer kernel in saucy? I could try that too | 12:07 |
| diwic | nessita, saucy is 3.10. | 12:07 |
| nessita | diwic, would you recommend that path? | 12:07 |
| diwic | nessita, I think you tried saucy at one point and it was still broken, right? | 12:08 |
| nessita | diwic, no, at that point you considered it wasn't going to help | 12:08 |
| nessita | or it likely wasn't ging to help | 12:08 |
| diwic | nessita, I still think it's more likely it does not help, but feel free to try | 12:09 |
| nessita | diwic, I have no leftover space in my disk for a separated partition, so I would have to upgrade this raring to saucy. Would you know if the transition is "smooth"? | 12:10 |
| diwic | nessita, try saucy from a live USB stick. | 12:10 |
| nessita | or is there a package with saucy's kernel for raring? | 12:10 |
| nessita | ah, can do that | 12:10 |
| diwic | nessita, btw, is your computer home-built? | 12:10 |
| diwic | nessita, or does it have a common name (like "Dell inspiron D505")? | 12:11 |
| nessita | diwic, I bought the separated parts and I assembled it | 12:11 |
| nessita | so, I guess the answer is "yes" | 12:11 |
| diwic | nessita, okay, what graphics card is in there? | 12:11 |
| nessita | nvidia gforce (grabbing exact model) | 12:12 |
| nessita | 8400 GS | 12:12 |
| nessita | diwic, FYI, I did not install the propietary drivers in the precise installation | 12:13 |
| diwic | nessita, since it has been the graphics showing up on the wakeup_rt tracer reports - do you have another card around that you don't use, you could try switching and see what happens? | 12:13 |
| nessita | diwic, hum, no, I don't have, and this MB does not have integrated graphics | 12:13 |
| diwic | nessita, okay | 12:13 |
| diwic | nessita, so, a long boring git bisect, or possibly switching graphics cards are my best bets at the moment - but saucy could be worth a try too if it is easy for you to test | 12:19 |
| diwic | nessita, but I'm far from sure it's the graphics card at all so don't go buy a new one just for this :-) | 12:20 |
| nessita | diwic, right, I wasn't planning on getting a new video card... is hard for me to understand how video can mess up with audio like this. Specially since this computer has "a lot" of cores, so I would expect audio and video to not mess each other | 12:21 |
| nessita | diwic, will do the sacuy test. I'm also happy to do the git bisect, but I'd need instructions/packages for that | 12:22 |
| diwic | nessita, yeah, I too think that is surprising. I'm not an expert on scheduling. And I'm not ruling out audio either, it's just that that biggest weirdness are these latencies. | 12:22 |
| ohsix | oh my god, i can't even believe bfq and deadline came up in discussion as a reasonable thing to do | 12:23 |
| ohsix | bug #1201528 | 12:24 |
| ubot2` | Launchpad bug 1201528 in alsa-driver (Ubuntu) "[Realtek ALC889] - Audio Playback Unavailable" [Undecided,New] https://launchpad.net/bugs/1201528 | 12:24 |
| ohsix | heh oh man, raymond is on launchpad now ;O | 12:27 |
| === fmasi_lunch is now known as fmasi | ||
| ohsix | diwic: doesn't have to be a scheduling problem, but that is indeed weird stuff | 13:07 |
| ohsix | i'd be interested to see if some of the power state latencies and stuff were correctly reported and if it's entering them | 13:08 |
| rtg | apw, I updated overlayfs. looks like it builds OK. maybe you could do your testing on it ? | 13:14 |
| apw | rtg, is that post what i build this morning ... assume so | 13:15 |
| rtg | apw, just now. updated to v19 | 13:15 |
| apw | rtg, ok | 13:15 |
| diwic | nessita, could you attach the output of /proc/interrupts ? It does not have to be any specific kernel or release. | 13:42 |
| nessita | diwic, sure, will grab them from this session. Do I need to "break" audio first? | 13:45 |
| diwic | nessita, does not matter. | 13:46 |
| nessita | ack, attached https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1201528/comments/41 | 13:47 |
| ubot2` | Ubuntu bug 1201528 in alsa-driver (Ubuntu) "[Realtek ALC889] - Audio Playback Unavailable" [Undecided,New] | 13:47 |
| nessita | diwic, properly formatted https://pastebin.canonical.com/95432/ | 13:48 |
| ohsix | 45 is a busy one | 13:48 |
| nessita | FYI, audio playback is still working (haven't opened mumble yet) | 13:49 |
| diwic | nessita, just curious if nvidia and snd-hda-intel were on the same cpu but it seems like nvidia is spread across all CPUs. | 13:50 |
| nessita | and nvidia interrupts values seem "reasonable" | 13:51 |
| nessita | snd_hda_intel interrupts are crazy high | 13:51 |
| diwic | nessita, and this was raring, right? | 13:52 |
| nessita | diwic, yes, 13.04 with 3.8.0-26-generic | 13:52 |
| diwic | ok | 13:52 |
| nessita | that makes me remember... /me needs to download saucy iso | 13:53 |
| diwic | nessita, are you running with tsched=0 ? | 14:01 |
| nessita | diwic, not that I know of, let me check | 14:01 |
| diwic | nessita, if you are that could explain the large values on snd-hda-intel | 14:01 |
| nessita | diwic, can you please remind me where to look? | 14:02 |
| diwic | nessita, /etc/pulse/default.pa | 14:02 |
| nessita | diwic, full content of the file https://pastebin.canonical.com/95438/ | 14:03 |
| nessita | i don't see tsched there | 14:03 |
| diwic | nessita, nope, looks like the origina | 14:04 |
| diwic | l | 14:04 |
| nessita | yeah, my recall was that I reverted all the changes I tried | 14:04 |
| rtg | apw, laid down some hacks on lttng in unstable. can you have a look to make sure what I did makes sense ? | 14:10 |
| brandon__ | hello | 16:12 |
| brandon__ | hi | 16:13 |
| nessita | ohsix, I see that diwic left, but just wanted to mention that booted a saucy live from pendrive, and auido playback broke as soon as I opened mumble, attached to the bug the pulse verbose log (with lots of underuns), and the /proc/interrupts from before | 17:24 |
| === fmasi is now known as fmasi_afk | ||
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