Randomly kills all my windows and logs me out

[dangerous001]

I bought a refurbished Lenovo IdeaPad with core i9 and 32GB RAM. It came with windows 11. I installed ubuntu 24.04 on it. It runs amazingly fast - loving it.

Several times a day, it will close all my windows and log me out. How do I debug this? There are so many log files in linux. Which ones should I look at?

I used to use ubuntu/linux a lot around 10 years back and then switched to mac for the last 10 years.

I get so frustrated sometimes that I am thinking of just moving back to mac though I love the feeling of using linux/OSS and would like to continue using it.

The programs I run:
- brave browser
- gvim
- terminal
- winamp in wine
- Discord
- Transmission
- mac os inside qemu.
- signal
- telegram
- nordvpn
- pihole/dnsmasq
- Thinkorswim (java)
- calibre



$ sudo apt upgrade


Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
Get more security updates through Ubuntu Pro with 'esm-apps' enabled:
libcjson1 libpostproc57 libavcodec60 libavcodec60 libavutil58 libavutil58
libswscale7 libswresample4 libswresample4 libavformat60 libavfilter9
Learn more about Ubuntu Pro at https://ubuntu.com/pro
The following upgrades have been deferred due to phasing:
file-roller python3-distupgrade shotwell shotwell-common
ubuntu-release-upgrader-core ubuntu-release-upgrader-gtk
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.



$ sudo apt update
Hit:1 https://brave-browser-apt-release.s3.brave.com stable InRelease
Hit:2 https://updates.signal.org/desktop/apt xenial InRelease
Hit:4 https://tvd-packages.tradingview.com/ubuntu/stable jammy InRelease
Hit:3 https://linux-packages.resilio.com/resilio-sync/deb resilio-sync InRelease
Get:5 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]
Hit:6 https://ppa.launchpadcontent.net/ata...elegram/ubuntu noble InRelease
Hit:7 http://in.archive.ubuntu.com/ubuntu noble InRelease
Hit:8 https://ppa.launchpadcontent.net/bra...drtools/ubuntu noble InRelease
Get:9 http://security.ubuntu.com/ubuntu noble-security/main amd64 Components [7,184 B]
Get:10 http://in.archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]
Hit:11 https://ppa.launchpadcontent.net/fle...uickemu/ubuntu noble InRelease
Get:12 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Components [212 B]
Get:13 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Components [51.9 kB]
Get:14 http://security.ubuntu.com/ubuntu noble-security/multiverse amd64 Components [212 B]
Get:15 http://in.archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
Get:16 http://in.archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [599 kB]
Get:17 http://in.archive.ubuntu.com/ubuntu noble-updates/main amd64 Components [114 kB]
Get:18 http://in.archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Components [212 B]
Get:19 http://in.archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [709 kB]
Get:20 http://in.archive.ubuntu.com/ubuntu noble-updates/universe i386 Packages [437 kB]
Get:21 http://in.archive.ubuntu.com/ubuntu noble-updates/universe amd64 Components [305 kB]
Get:22 http://in.archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Components [940 B]
Get:23 http://in.archive.ubuntu.com/ubuntu noble-backports/main amd64 Components [208 B]
Get:24 http://in.archive.ubuntu.com/ubuntu noble-backports/restricted amd64 Components [216 B]
Get:25 http://in.archive.ubuntu.com/ubuntu noble-backports/universe amd64 Components [21.1 kB]
Get:26 http://in.archive.ubuntu.com/ubuntu noble-backports/multiverse amd64 Components [212 B]
Fetched 2,625 kB in 10s (275 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
6 packages can be upgraded. Run 'apt list --upgradable' to see them.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://brave-browser-apt-release.s3.brave.com stable InRelease' doesn't support architecture 'i386'
W: http://linux-packages.resilio.com/re...ync/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
N: Skipping acquire of configured file 'non-free/binary-i386/Packages' as repository 'http://linux-packages.resilio.com/resilio-sync/deb resilio-sync InRelease' doesn't support architecture 'i386'

Log files are here:

$ cat /var/log/syslog > var-log-syslog.txt
$ cat /var/log/auth.log > var-log-syslog.txt
$ cat /var/log/auth.log > var-log-auth-log.txt
$ journalctl -b # View logs from the current boot

How do I enable DEBUG logs?

Thank you!

[1fallen]

Would you please run our system-info script, and at the end it will provide a link; just paste that link back here in your thread.

wget -N -t 5 -T 10 https://github.com/Mafoelffen1/system-info/raw/main/system-info && \
chmod +x system-info && \
./system-info --details

[dangerous001]

Would you please run our system-info script, and at the end it will provide a link; just paste that link back here in your thread.

wget -N -t 5 -T 10 https://github.com/Mafoelffen1/system-info/raw/main/system-info && \
chmod +x system-info && \
./system-info --details

I was using gnome classic before. Now, I installed KDE and switched to plasma window manager.

https://termbin.com/4ol7

[1fallen]

This I need to check, but will you now include:

inxi -m

This is what I'm seeing:

---------- Memory Information:
               total        used        free      shared  buff/cache   available
Mem:           31698       25403        1253        1799        7475        6295
Swap:           8191         564        7627

It's hard for me to imagine why your using 25 Gigs of ram. I only use 16 Gigs total and never come close to that???

[Doug S]

It's hard for me to imagine why your using 25 Gigs of ram. I only use 16 Gigs total and never come close to that???

+1.
I noticed the same. There is a lot of stuff in use, maybe try not using one or two things at a time and see if there is any difference. First, I would try not using the brave-browser as it shows many many times in the tty list

[dangerous001]

$ inxi -m
Memory:
System RAM:total: 32 GiB available: 30.96 GiB used: 24.14 GiB (78.0%)
Message: For most reliable report, use superuser + dmidecode.
Array-1:capacity: 32 GiB slots: 8 modules: 8 EC: None
Device-1: Controller0-ChannelA type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-2: Controller0-ChannelB type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-3: Controller0-ChannelC type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-4: Controller0-ChannelD type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-5: Controller1-ChannelA type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-6: Controller1-ChannelB type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-7: Controller1-ChannelC type: LPDDR5 size: 4 GiB speed: 7467 MT/s
Device-8: Controller1-ChannelD type: LPDDR5 size: 4 GiB speed: 7467 MT/s

[dangerous001]

Thanks @1Fallen2 & @Doug S for pointing me in the right direction! I will try to debug why so much RAM is being used. Would be nice if ubuntu would show me a warning popup saying that too much RAM is being used instead of just logging out without warning.

[1fallen]

Yes much better now!

available: 30.96 GiB used: 24.14 GiB (78.0%)

I'll bet your random logouts are gone now. (or i hope they are)
You was aware of the many open Brave-browsers in your TTY's right? if not that is a good place to investigate.

[dangerous001]

Yes, random logouts are gone after I switched from gnome classic to plasma. Thank you very much!