чт, 14 июл. 2022 г. в 10:53, Michael <confabul...@kintzios.com>: > > On Thursday, 14 July 2022 07:19:14 BST gevisz wrote: > > пт, 11 мар. 2022 г. в 20:15, gevisz <gev...@gmail.com>: > > > пн, 19 окт. 2020 г. в 00:15, gevisz <gev...@gmail.com>: > > > > вс, 18 окт. 2020 г. в 21:15, Dale <rdalek1...@gmail.com>: > > > > > gevisz wrote: > > > > > > вс, 18 окт. 2020 г. в 17:20, Dale <rdalek1...@gmail.com>: > > > > > >> gevisz wrote: > > > > > >>> No sound at least in Firefox. Tried it on youtube. Skype is > > > > > >>> currently > > > > > >>> uninstalled. So, I cannot check using it. > > > > > >> > > > > > >> Just a thought. Are you sure that everything is unmuted? Years > > > > > >> ago, > > > > > >> all the sound control software, Kmix, alsa and others, default to > > > > > >> mute. > > > > > >> If just one of them is muted, no sound. I seem to recall when I > > > > > >> did my > > > > > >> install on this rig that I had to unmute the sound in three places, > > > > > >> Kmix, alsa and one other that I can't recall the name of. I think > > > > > >> I had > > > > > >> to turn up the volume on alsa as it was set to a really low level > > > > > >> once > > > > > >> it was unmuted. Usually, I turn all of them to the max except the > > > > > >> one I > > > > > >> mainly use. In my case, Kmix is the one I use to really control > > > > > >> things > > > > > >> since it sits on the panel thingy. The others are set at the max. > > > > > >> > > > > > >> It's a silly thing but thought it worth a mention just in case > > > > > >> there is > > > > > >> a muted setting somewhere. > > > > > > > > > > > > Thank you for your input. Yes, it seems that something is muted but > > > > > > what? > > > > > > I have no KDE and no kmix installed. No pulseaudio. > > > > > > > > > > Type in alsamixer in a console or whatever you use and hit tab twice. > > > > > I > > > > > suspect you have that installed. You should have a text version, like > > > > > a > > > > > console uses, and a gui version, that should work in any DM. Pick > > > > > your > > > > > poison and see if anything there is muted or the volume is set really > > > > > low, like 1 out of 100 or something. I think hitting the "m" key > > > > > toggles the mute. > > > > > > > > I am sorry to confess that I forgot that I should use M to unmute > > > > a channel in alsamixer (as I did about 14 years ago) and thought > > > > that arrows up and down do all the work. :( > > > > > > > > So, now the problem has been solved. > > > > > > Last time I have ended the discussion on my > > > "no sound" problem acknowledging that I was > > > so stupid that "forgot that I should use M to > > > unmute a channel in alsamixer." > > > > > > However, it turned out that it was not the case: > > > currently I have all channels in alsamixer unmuted > > > and have sound only in about 1 from 10 bootings of > > > my Gentoo system, while I do always have sound > > > on the same computer while I boot it with Ubuntu 20.04. > > > > > > I have also compared the output of lsmod command > > > on both systems and found out that my Gentoo system > > > had all sound kernel modules that my Ubuntu system has > > > and even more. (In Gentoo, I still have quite an old 5.4.97 > > > kernel, but I do not think that it is the cause of my > > > "no sound" problem.) > > > > > > Of course, it is completely my responsibility that > > > I have built my Gentoo system in such a way that > > > I never know if I will have sound after its next boot. > > > However I am lost guessing what I did wrong. > > > (Comparing with Ubuntu 20.04, my Gentoo system > > > has no systemd and no pulseaudio, no consolekit, > > > and no policykit.) > > > > > > I leave this just for history, as I am currently > > > in a war zone and so investigating this problem > > > further is not in my priority list. :( > > > > I have accidentally found that the problem with > > absence of sound on my Gentoo box appears > > only when my USB Logitech webcam is connected > > to the computer during the boot time. > > > > Moreover, if it happens and the sound is absent, > > the alsamixer shows that my USB Logitech webcam > > is considered by the system as a default sound device. > > > > So, it tries to send sound there even though it does > > not have any speaker. > > I'll blame some relatively recent change in the kernel > or some interaction with udev.
Yes, it is quite probable that udev, evdev or the like is responsible for the problem.
