Annoying random logouts

I’m on Ubuntu Budgie 18.04 - just installed a week ago. Occasionally, the screen flickers and I get logged out (back to lightdm-slick-greeter). Here’s the output of uname -a:
Linux robot 5.0.0-36-generic #39~18.04.1-Ubuntu SMP Tue Nov 12 11:09:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
And inxi -F:

System:    Host: robot Kernel: 5.0.0-36-generic x86_64 bits: 64 Desktop: Budgie 10.4  Distro: Ubuntu 18.04.3 LTS
Machine:   Device: laptop System: LENOVO product: 2325S3E v: ThinkPad X230 serial: N/A
           Mobo: LENOVO model: 2325S3E serial: N/A UEFI [Legacy]: LENOVO v: G2ET92WW (2.52 ) date: 02/22/2013
Battery    BAT0: charge: 18.5 Wh 100.2% condition: 18.5/25.9 Wh (71%)
           hidpp__0: charge: N/A condition: NA/NA Wh
           hidpp__1: charge: N/A condition: NA/NA Wh
CPU:       Dual core Intel Core i5-3320M (-MT-MCP-) cache: 3072 KB
           clock speeds: max: 3300 MHz 1: 1262 MHz 2: 1466 MHz 3: 1671 MHz 4: 2483 MHz
Graphics:  Card: Intel 3rd Gen Core processor Graphics Controller
           Display Server: x11 (X.Org 1.20.4 ) drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: 1920x1200@59.95hz
           OpenGL: renderer: Mesa DRI Intel Ivybridge Mobile version: 4.2 Mesa 19.0.8
Audio:     Card Intel 7 Series/C216 Family High Definition Audio Controller driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k5.0.0-36-generic
Network:   Card-1: Intel 82579LM Gigabit Network Connection (Lewisville) driver: e1000e
           IF: enp0s25 state: down mac: 3c:97:0e:90:c2:23
           Card-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi
           IF: wlp3s0 state: up mac: 6c:88:14:3b:b3:f0
Drives:    HDD Total Size: 128.0GB (17.2% used)
           ID-1: /dev/sda model: TOSHIBA_THNSNF12 size: 128.0GB
Partition: ID-1: / size: 117G used: 21G (19%) fs: ext4 dev: /dev/sda1
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 54.0C mobo: N/A
           Fan Speeds (in rpm): cpu: 3355
Info:      Processes: 256 Uptime: 22 min Memory: 2241.0/7673.6MB Client: Shell (bash) inxi: 2.3.56 

Please help - I love Ubuntu Budgie, but this is killing me. I did install the budgie extras ppa, but this issue occurred before I did that, so i dont think it’s related.

Question: does it occur on the occasion of switching workspaces?

I don’t use workspaces, so I don’t know.

Also sometimes, after it crashes, it resets budgie-panel. Not always, though :wink:

That points into the direction of a misbehaving applet. What applets are you running?

Also, whenever I open Budgie Desktop Settings, it resets my GTK theme and cursors to the default Budgie ones - I have no idea why

Well, the resetting problem was solved by a reboot, but my other problem still remains. I ran into this problem when I didn’t have the following applets, too:

  • Haste
  • Screenshot Applet
  • Network applet (I used the system tray one)

So it has to be one of the others, I guess?

Unlikely, none of your applets is suspected or perform error-sensitive tasksvas far as I can see.

Please reset your panel and run the desktop for a while without any applet or panel customisation. We need to determine if it is an applet or something else causing issues.

nohup budgie-panel --reset --replace &

Then logout and login.

Been using it like that for a hour with no issues so far.
Also, this information be of interest to you: when I try to login as a guest user from slick greeter, I see the default UB desktop for a second, then the same flickering issue occurs - only it’s reproducible and happens before I get a chance to use the desktop.
Thanks for making this awesome OS!

You must have enabled guest user since it should be disabled by default.

Yeah guest user is broken. It has been for many years now ever since ubuntu moved to systemd

Strange then. Ah well… I wanted to use Guest User sometimes, but okay.