In the last couple of weeks I've had a curious problem on my Fedora-24/KDE Thinkpad T510 laptop. Sound (on YouTube for example) starts up fine on Firefox, but then suddenly stops working after 5 to 30 minutes. It's exactly the same with Google Chrome. I see nothing at all odd in journalctl -b0 ; alsa and pulseaudio seem to start fine, and then are no longer mentioned.
The only cure I have found is to re-boot. I've looked at https://fedoraproject.org/wiki/How_to_debug_sound_problems and https://fedoraproject.org/wiki/How_to_troubleshoot_sound_problems and followed some of the suggestions there, but to no avail. There does not seem to have been any recent update to alsa or pulse-audio.
I wonder if anyone else has had a similar experience? Or if anyone can suggest any possible alternative to re-booting?
Incidentally, I can boot into Windows 10 on this laptop, and sound seems to work perfectly there. So it seems there is nothing wrong with the hardware.
Timothy Murphy wrote:
In the last couple of weeks I've had a curious problem on my Fedora-24/KDE Thinkpad T510 laptop. Sound (on YouTube for example) starts up fine on Firefox, but then suddenly stops working after 5 to 30 minutes.
I have had a similar problem since a couple of months (since F24ß was released?).
I don't use Chrome enough on a regular basis to be able to confirm, but Firefox is stricken. I'll decide to play some videos on YT using Firefox and there is no sound. I open other tabs and try. Typically, nothing. Rarely, this appears to fix the problem. Sometimes, I open VLC and play a video stored on my computer. This appears to be the most reliable solution for me. Perhaps a logout/in.
I've always managed to get it working without rebooting, but it takes a lot of fiddling. I have no idea what causes it and there are no clues that might suggest a culprit.
There is this report:
https://bugzilla.mozilla.org/show_bug.cgi?id=803042
I haven't tried the suggestion about modifying asoundrc.
There is a similar report on archlinux (I find them to be a pretty reliable bunch of guys that have lots of information that has helped me out a lot with problems).
PS: I got rid of my 2 old computers (a desk- and a laptop) and now have just a laptop. I am not certain if I have experienced the problem since the hardware change, but I will report, if it should occur.
On Sat, 10 Sep 2016 12:43:36 +0100 Timothy Murphy gayleard@eircom.net wrote:
In the last couple of weeks I've had a curious problem on my Fedora-24/KDE Thinkpad T510 laptop. Sound (on YouTube for example) starts up fine on Firefox, but then suddenly stops working after 5 to 30 minutes.
The only cure I have found is to re-boot.
I wonder if anyone else has had a similar experience? Or if anyone can suggest any possible alternative to re-booting?
Hmmm, I have been experiencing this, I think. Occasionally, I'll try playing a video, and there will be no sound. I thought it was just that the video poster had made an error. I don't do anything to fix it, and other videos will play just fine, even after a video has had sound problems, or even while another video is having sound problems. Next time this happens, I'll download the silent video and see if it has audio when played locally.
The only place I recall having this happen is at youtube. I don't use flash, so it might be something to do with their html5 player. Or maybe a plugin?
I suspect that closing the site tab, deleting the cookies from the site where the problem occurred, closing the browser, and then re-opening the browser and the site would fix the problem. Maybe even just closing the tab for the site, removing its cookie, and re-visiting the site would work. Depends if it is the site or the browser causing the problem.
I have never had a problem with audio on local videos, so I conclude it is not a hardware or alsa or pulse problem.
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Peter G. -
stan -
Timothy Murphy