[03:33] Hi looking for help. :) My DAW was working great. After an Ubuntu update and reboot, qjackctl stopped seeing my USB-sound card (a Soundcraft MTK12). Going crazy to understand why. Doesn't appear in "readable" or "writable" clients in qjackctl Connections. But the USB sound device does appear when I do aplay -l. Ubuntu 19.10. Pulse routed into jack. Used to work great. Ideas? [08:29] jkasha: 19.10 is about to loose support anyways, i'd just upgrade to 20.04 and look into solving it there IF it's still an issue. [10:30] thank you Tomreyn. I will try that. [10:33] you're welcome :) [12:43] Tomreyn - I upgraded to Ubuntu 20.04, but I am still having same problem ... qjackctl does not list my USB soundcard (which is a Soundcraft MTK mixer/interface) in the readable/writable audio clients. It was working perfectly until yesterday. Upgrade to 20.04 seems not to have changed anything :( [12:43] Any ideas, Tomreyn or anyone? Thank you! [13:41] hi sending S.O.S. again in case anyone can help! My sound card (a USB-interface) stopped appearing in readable/writable clients in qjackctl. Seems to have happend after an unnounced kernel upgrade. I upgraded to Ubuntu 20.04 to see if it would help, but did not. Any ideas? Thank you!!! [13:42] ... btw ... Linux recognizes the device is there. It is listed when I do "aplay -l" [13:42] seems to be a jack or qjackctl or d-bus or jack dbus or something.... [16:25] jkasha: sorry, i missed your messages here [16:26] hmm, i'm afraid i won't be able to help there, i really have no clue about audio interfaces [16:26] nor about jack(d) really [16:27] if you can stay around for longer, i bet someone else will jump in. also see the /topic for more suggestion son how to find help [16:31] thank you. appreciate your help so far. Hopefully someone else will come to my rescue! [17:33] btw - a friend with a similar setup just told me he is also having similar problems. Is it possible something went wrong for many people? Anyone else having trouble reaching their usb-audio interface in qjackctl? not appearing as readable/writable client? [18:18] since you say you upgraded to 20.04, i assume this can be relevant: https://wiki.ubuntu.com/FocalFossa/ReleaseNotes/UbuntuStudio https://help.ubuntu.com/community/UbuntuStudio/UbuntuStudioControls [18:56] jkasha: in a terminal (all one line): cd /tmp && wget https://community.ardour.org/files/adevices.sh && bash ./adevices.sh |pastebinit [19:40] Overnwerks - just did. Thx for any help you can give! [19:41] The device I want to use is the MTK. It has 14 ins/outs. It worked fine, until Fri. [20:13] Wheres the URL that should have given? [20:14] https://paste.ubuntu.com/p/XhNkVy69PX/ [20:17] I am at a loss as to why qjackctl can't see that. Have you tried ubuntustudio-controls for running jack? [20:20] Yes [20:20] BTW we have found that a rm ~/.config/jack/conf.xml after having run qjackctl can be helpful [20:21] thx. i just did rm etc. but still same. [20:22] could it have smthg to do with dbus or jack d-bus? i get rather confused... [20:23] in ubuntustudio-controls->audiosetup->jack master settings->USB device that should be Master ..... you can't find your device? [20:23] -controls uses the same way for finding devices as the script you used to produce the URL above. [20:24] I find the device in "USB device that should be Master", and I have it selected [20:24] ok and then start jack button [20:25] Then there is a button that says Carla [20:26] when Carla opens, there is a tab called patchbay [20:27] system:capture and playback shold be your USB device [20:28] It only shows "system", which is only 2 channels, whereas my device (MTK) is 14ins/12outs (or vice versa). And I tried to see if that even corresponds to the first two inputs on my device ... it doesn't. [20:28] ok what does the script above show now? [20:28] When it used to work, in qjackctl, my device was listed as "system," but had all the inputs & outputs and worked. [20:28] I understand [20:29] I am trying to figure out what happened [20:29] which script? sorry i'm confused. :) [20:29] this? [20:29] cd /tmp && wget https://community.ardour.org/files/adevices.sh && bash ./adevices.sh |pastebinit [20:29] /tmp/adevices.sh |pastebinit [20:29] Yeah [20:30] https://paste.ubuntu.com/p/4c3rZw2SCG/ [20:30] well it is your device for sure.... but why only two chanels [20:31] Oh!, I see it. [20:31] maybe not. [20:31] 192000? [20:31] why? [20:32] it appeared difftly in the earlier version.... what changed [20:32] anything above 48k is for bats [20:32] jackdbus is now running [20:32] that was there by default. maybe that was the problem? [20:32] changing to 48k, which is what i always use. [20:33] you will have to restart Carla after hitting the apply audio settings button [20:33] do you recommend Carla over qjackctl? [20:34] many devices change chanel count with SR [20:34] personally I don't care :) but ubuntustudio policy is that Carla is the way forward [20:34] and Caitia when that shows up [20:35] Still not showing the channels. Will do that script again. And btw - (if you know) in qjackctl, there is a setting for frames/period just below SR (48k)... not sure what that is. It's set to 64, but not sure if that's good. [20:35] I would stay away from using qjckctl to start jack, but the connections panel is still just fine [20:36] https://paste.ubuntu.com/p/V88hzxz863/ [20:36] 64 should be fine... [20:38] That looks like you started it with qjckctl. [20:39] yes [20:39] i'll restart from pulse and do again. [20:39] assuming so... under advanced in settings [20:39] there is a "Channels I/O" [20:40] is that set to 2 by chance? [20:40] no it's on default [20:40] Ah, yes if jack is stopped, [20:41] pavucontrol may be able to set chanels [20:42] pavucontrol->Configureation-> drop down may show more than one chanel setup [20:42] so should I set that while Jack is stopped in qjackctl? And if so, I presume I should set it to the correct number of ins/outs, right? [20:42] yes [20:43] if jack is running pavucontrol may not have access [20:43] ok. i'll try in qjackctl, because I'm more familiar, unless you think it's important i use pavucontrol? [20:43] you have to use pavucontrol I think [20:44] Unless there is a switch/control right on your device that can change number of chanels [20:47] you're not gonna believe this... i just changed the usb cable and it's working. it's the one i was using all along. when it stopped worked, i put in a newer longer one. i just put the older, short one back, and boom! my 14/12 channels are back. [20:47] \o/ [20:47] good [20:48] i'll do some tests to see if it actually works. sorry to have taken up so much of your time. much appreciate your help. i'll let you know after I test. [20:48] If you are used to qjackctl feel free to keep using it [20:49] on the advanced page I would change the "Port Maximum" to 1024 [20:49] (default is 2048 but qjackctl doesn't seem to allow that) [20:49] I think that is it for the advanced page [20:50] In general the default settings are good [20:51] https://www.youtube.com/watch?v=3GwjfUFyY6M [20:51] Thank you so much!!! [20:51] you're welcome [21:01] i'm getting weird behavior nonetheless. :( i'm going to reboot and see if that helps. [21:07] Youtube doesn't play correctly now. for whatever reason, it was working before i did the Port Max change. now it doesn't work, even when i set it back. [21:07] or i should say, youtube won't play media. the MTK device is there and the channels are correct. [21:19] Ovenwerks ... now i can't even start jack... :( I get an error that says "D-BUS: Jack server could not be started." [21:19] my head is looping!