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I put my laptop into sleep mode then when I wake it up most of my open apps when I try to click on them crash, others I can’t do anything with except force them to quit.

When I try to run any command in the terminal I get “input/output error” message and even plasmashell itself closes so I force a shutdown using the hardware power button.

I can consistently replicate this whenever I put my laptop into sleep mode. This is a Kubuntu 24.04 install from earlier this week.

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    It sounds a bit like / is in read only mode / the drive isn't accessible. As a test / workaround you could try and either disable or enable hibernation, depending on your current settings, and see if that changes anything. Commented Aug 2, 2024 at 9:07
  • Fiddling with power management-related options in the BIOS also could help in fixing this. Commented Aug 2, 2024 at 9:09
  • I don't see any related power management-related options in the BIOS I can change to fix this. Sleep was previously working on this same PC until I reinstalled the distro. Enabling hibernation hasn't helped. Commented Aug 3, 2024 at 10:06
  • Can you try and open a terminal, run lsblk and mount | grep sdXY, replacing sdXY with /'s partition, put the laptop to sleep leaving the terminal open, resume from sleep and run both commands again? Is the drive hosting the OS still listed? Is / still mounted rw? Commented Aug 4, 2024 at 4:00
  • If it's not clear from doing that what's the status of the drive after resuming from sleep, please post the output of sudo hdparm -I /dev/sdXY (do the same trick to run the command before putting the laptop to sleep so that hopefully it will be cached and accessible after resuming from sleep despite a possible inaccessible root partition) Commented Aug 4, 2024 at 4:03

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