| semitones_rex | arraybolt3: is lubuntu+1 liveISO supposed to have paplay installed, or aplay, or both? | 01:43 |
|---|---|---|
| semitones_rex | mine has aplay, but it plays garbled playback | 01:43 |
| arraybolt3 | a play should be there, not sure about paplay | 01:46 |
| arraybolt3 | What are you trying to play? | 01:46 |
| arraybolt3 | aplay only supports .WAV files as far as I know. | 01:46 |
| arraybolt3 | Also how does it behave if you try playing some audio from YouTube or Pixabay or some such? | 01:47 |
| semitones_rex | ah ok. Youtube works as expected, so does VLC. I did 'aplay /usr/share/sounds/freedesktop/stereo/complete.oga' | 01:48 |
| arraybolt3 | oh yeah that won't work | 01:49 |
| arraybolt3 | try `aplay /usr/share/sounds/alsa/Front_Center.wav` | 01:50 |
| arraybolt3 | That should sound normal. | 01:50 |
| semitones_rex | yup that works, sounds great. | 01:51 |
| semitones_rex | thanks :) | 01:53 |
| arraybolt3 | Happy to help! | 01:55 |
| sem | arraybolt3: this is a problem... Xscreensaver crashed the system, and I was taking my notes in noblenote | 02:01 |
| arraybolt3 | Crashed the system? How badly? | 02:01 |
| arraybolt3 | X server crash? Kernel panic? | 02:01 |
| sem | The mouse moved slowly and then stopped moving. I see the desktop but it's unresponsive | 02:02 |
| sem | This happened when I checked "ok" for "Warning: the Xscreensaver daemon doesn't seem to be running on display ":0". Launch it now?" | 02:03 |
| sem | I don't seem to be able to access a virtual terminal with ctrl-alt-f1, etc | 02:04 |
| sem | Do you have any suggestions for how to recover any of this? The contents of noblenote are all I care about | 02:07 |
| sem | I could also just reboot and write what I can remember | 02:08 |
| arraybolt3 | sem: sounds like you ran out of RAM | 02:09 |
| sem | oom-killer strikes again | 02:09 |
| arraybolt3 | All those symptoms are characteristic of "thrashing". | 02:09 |
| sem | I have 6 GB ram | 02:09 |
| arraybolt3 | Best hope is to wait and hope something kicks in and kills whatever is overloading things, otherwise force-reboot. | 02:10 |
| arraybolt3 | How many apps and browser tabs were you using? | 02:10 |
| arraybolt3 | Slow mouse movement transitioning to stop, and inability to switch to TTY, is what thrashing generally does. | 02:11 |
| sem | Noble note, quassel, file manager, terminal, firmware-updater (hung) 1 tab in Firefox, configuration center, and xscreensaver | 02:11 |
| sem | Thanks for teaching me some new vocab | 02:11 |
| sem | I also tried to start discover twice and that didn't work, but I didn't see it in top | 02:12 |
| sem | VLC was giving me some errors about private memory, but I was closing it each time | 02:12 |
| sem | Oh, also open in notifications bar: nm-applet, clipper, redshift, pavucontrol... | 02:13 |
| sem | *qclippr | 02:13 |
| arraybolt3 | hmm | 02:22 |
| arraybolt3 | Doesn't sound like that much, that's weird. | 02:22 |
| sem | Would you recommend I file this "thrashing" bug against xscreensaver since that was the trigger? Or xorg-nouveau since it seems to be display related | 02:26 |
| arraybolt3 | I don't think it was either really. | 02:35 |
| arraybolt3 | Without seeing what program was eating RAM, there's no way to know. | 02:35 |
| arraybolt3 | The program that tipped it into thrashing could be entirely unrelated. | 02:36 |
| arraybolt3 | if for instance the X server suddenly ate up almost all your RAM, you might not thrash yet, but then open another app (like the screensaver) and boom, thrashing | 02:36 |
| sem | arraybolt3, sounds like i could try to reproduce it, maybe while writing a log to a USB drive so there's something persistent | 02:38 |
| arraybolt3 | Do that, and also open htop and sort by memory used to see if you can spot the top offender. | 02:39 |
| arraybolt3 | (to be clear, open htop, then try to trigger the bug) | 02:39 |
| sem | gotcha | 02:45 |
| sem | i'm going to give it some time to see if something in the system recovers enough to kill whatever is misbehaving so I can get my notes back | 02:46 |
| lotuspsychje | on my NUC i have this xscreensaver bug it consumes 99% cpu | 02:47 |
| lotuspsychje | but didnt test it on noble yet | 02:47 |
| lotuspsychje | i got xscreensaver running on my new 24.04 laptop on ubuntu-desktop without issues on wayland | 02:48 |
| sem | i use xscreensaver extensively on lubuntu 20.04, but I think it is X11 | 02:48 |
| lotuspsychje | never had a crash on lubuntu before | 02:49 |
| lotuspsychje | i would go the arraybolt3 road, memory and cpu going high on xscreensaver and killing your desk? | 02:49 |
| sem | this was in the liveISO environment. What you describe sounds likely to me | 02:49 |
| lotuspsychje | but on the other hand, my nuc is an i7 with intel 650 uhd, should be able to handle a matrix screensaver like a charm | 02:50 |
| lotuspsychje | so im not sure how this works yet | 02:50 |
| sem | what does 'nuc' mean in this context? My pc is an antique at this point :) built in 2007 | 02:51 |
| lotuspsychje | bug #1862150 | 02:51 |
| -ubottu:#ubuntu-next- Bug 1862150 in xscreensaver (Ubuntu) "Xscreensaver produces high cpu and fan on 18.04" [Undecided, New] https://launchpad.net/bugs/1862150 | 02:51 | |
| lotuspsychje | intel NUC | 02:51 |
| lotuspsychje | what are your specs like sem | 02:52 |
| sem | AMD athlon 64 x2, 6 gb ram | 02:53 |
| lotuspsychje | i ran xscreensaver for long on an amd 3200 | 02:54 |
| lotuspsychje | with 2gb | 02:54 |
| sem | yeah, xscreensaver seems to have no problem on my 20.04 install on the same machine. The main difference is that install uses the nvidia drivers; this one is using nouveau | 02:56 |
| lotuspsychje | so we can assume this is machine related | 02:56 |
| lotuspsychje | but we have to prove, why it happens on decent hardware? | 02:56 |
| sem | yeah; i guess we have to first see if it is indeed the same bug | 02:57 |
| sem | it probably is though | 02:58 |
| lotuspsychje | problem with xscreensaver is the moment you move, cpu load goes down and you cant see it anymore | 02:58 |
| lotuspsychje | so you need to log cpu | 02:58 |
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