0007500: Sound is missing from vm Squeak-4.0.3.2196-linux_i386

Notes
(0013689 - 234 - 246 - 246 - 246 - 246 - 246) dmoc 04-13-10 09:50 edited on: 04-13-10 10:03	New PA code sent to Ian (April 13th). When available please test both play and record without monitoring audio levels. PA's audio monitoring utility sets a low latency which will mask any latency problems with Squeak's PA plug-in.

(0013694 - 113 - 113 - 317 - 317 - 317 - 317) laza 04-13-10 12:12	This seems to be fixed according to http://lists.squeakfoundation.org/pipermail/squeak-dev/2010-April/148640.html [^]

(0013701 - 456 - 466 - 466 - 466 - 466 - 466) dmoc 04-13-10 12:49	@laza, thanks for the link. It was that post which prompted me to check sound today using 4.0.3.2200. If you try "Beeper beep" it may appear to play ok because it is a short sample but if you do it several times in quick succession then it doesn't sound too healthy. Using the PianoKeyboard morph to play a steady note reveals playback to be choppy. I replaced the PA plugin with a version done for Scratch in Feb and now playback and record work properly.

(0013706 - 113 - 119 - 119 - 119 - 119 - 119) laza 04-13-10 18:10	This issue is about no sound at all on linux, which has been resolved. I opened a new issue for the new PA code.

(0013707 - 832 - 922 - 1090 - 1090 - 1090 - 1090) wiz 04-14-10 00:23	From the post laza refered to: http://piumarta.com/tmp/Squeak-4.0.3.2196-linux_i386.tar.gz [^] Ok. Sounds back. pulseaudio does NOT latch up. Good. There may still be some problem with terminating the sound. I am finding after I have played with squeak, using the firefox browser to play youtube video's can lead to the browser slowing down to a painful crawl. Things don't clear up until the browser is closed. So I am suspecting that there is an interaction between a resource squeak is not properly releasing and the browsers rendering of the video's. How would one test for this at squeaks end of things? If I can figure how to support my suspicions I'll open a new report. It's a little off topic for this one. This one is resolved by the new vm package above. Yours in curiosity and service, --Jerome Peace

(0013714 - 955 - 1063 - 1063 - 1063 - 1063 - 1063) wiz 04-17-10 03:23	The title here is wrong. There is sound in 2196. The lack of sound was in an early tentative version of 2022. That was fixed before it was released with Squeak RC5. The 2196 vm apparently solved the latch up problem by missing the pulseaudio plugin. That allowed my Ubuntu system to have sound thru some other mechanism probalby the alsa? plugin. Unfortunately leaving the module out has an unfortunate interaction with the #stopSoundWhenDone preference. See the related report. So current state of affairs: linux vm for RC5 = vm2022 (with pulseaudio sound plugin) Sound works but will latch up the cpu. The stopSoundWhenDone preference is preset in Squeak 4.1.1 RC5. This works around the problem of cpu latchup by shutting off the sound. Then the cpu usage goes back to normal. It would be nice to have an even better solution but the current one is sufficient for goverment work. Yours in curiosity and service, --Jerome Peace

(0013715 - 1672 - 1933 - 1933 - 1933 - 1933 - 1933) wiz 04-17-10 04:00	Okay ran things from the console and got the following console log. This confirms the problem was with the sound module. And completes this investigation Problem is fixed with RC5 release and RC5 vm2022. ==== hubuntu@hubuntu-desktop:~$ '/home/hubuntu/Documents/squeakish/trunk/Squeak-4.0.3.2196-linux_i386b/Squeak-4.0.3.2196-linux_i386/bin/squeak' '/home/hubuntu/Documents/squeakish/trunk/4.1rc5/Squeak4.1.1.image' SQUEAK_ENCODING='UTF-8' SQUEAK_PATHENC='UTF-8' SQUEAK_PLUGINS='/home/hubuntu/Documents/squeakish/trunk/Squeak-4.0.3.2196-linux_i386b/Squeak-4.0.3.2196-linux_i386/lib/squeak/4.0.3-2196' + exec /home/hubuntu/Documents/squeakish/trunk/Squeak-4.0.3.2196-linux_i386b/Squeak-4.0.3.2196-linux_i386/lib/squeak/4.0.3-2196/squeakvm /home/hubuntu/Documents/squeakish/trunk/4.1rc5/Squeak4.1.1.image setlocale() failed (check values of LC_CTYPE, LANG and LC_ALL) openPulseAudio() play, rate: 22050, chans: 2 setlocale() failed (check values of LC_CTYPE, LANG and LC_ALL) sound_Start() frameCount >> 1: 1322 closePulseAudio((): play <got this far with first control p over Beeper Beep. Tried ctrl-p a few more times over Beeper. Then selected Beeper beep again. Next ctrl-p caused the segmentation fault.> openPulseAudio() play, rate: 22050, chans: 2 sound_Start() frameCount >> 1: 1322 Segmentation fault 1988865796 SoundPlayer class>playLoop 1988865616 Semaphore>critical: 1988865524 BlockClosure>ensure: 1988865408 Semaphore>critical: 1988832920 SoundPlayer class>playLoop 1988832828 SoundPlayer class>startPlayerProcessBufferSize:rate:stereo:sound: 1988833196 BlockClosure>newProcess Aborted hubuntu@hubuntu-desktop:~$

Issue History
Date Modified	Username	Field	Change
04-12-10 05:52	wiz	New Issue
04-12-10 05:52	wiz	Status	new => assigned
04-12-10 05:52	wiz	Assigned To	=> lewis
04-13-10 09:50	dmoc	Note Added: 0013689
04-13-10 10:03	dmoc	Note Edited: 0013689
04-13-10 12:12	laza	Status	assigned => resolved
04-13-10 12:12	laza	Fixed in Version	=> trunk
04-13-10 12:12	laza	Resolution	open => fixed
04-13-10 12:12	laza	Note Added: 0013694
04-13-10 12:49	dmoc	Note Added: 0013701
04-13-10 17:30	laza	Note Added: 0013704
04-13-10 18:03	laza	Note Deleted: 0013704
04-13-10 18:06	laza	Issue cloned	0007503
04-13-10 18:06	laza	Relationship added	related to 0007503
04-13-10 18:10	laza	Note Added: 0013706
04-14-10 00:23	wiz	Note Added: 0013707
04-17-10 03:13	wiz	Relationship added	related to 0007504
04-17-10 03:23	wiz	Note Added: 0013714
04-17-10 04:00	wiz	Note Added: 0013715
04-18-10 21:51	andreas	Status	resolved => closed