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[FIX] Read-only file system after waking up from suspend

A new laptop has arrived and of course new problems arise after installing Linux. But this time the problem looked familiar.

This time I was working with an ASUS laptop with an Intel 11th Gen processor and an Intel NVMe SSD.

First thing I did was checking if the evil s2idle sleep mode was enabled, and I that was exactly the case.

$ cat /sys/power/mem_sleep
[s2idle] deep
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The S3 deep mode was available, so this time I didn't need to patch the ACPI table. Then, I just added "mem_sleep_default=deep" line to the GRUB_CMDLINE_LINUX_DEFAULT parameter in /etc/default/grub and updated GRUB according to my distribution.

Now I can suspend and wake up the system without any problem!

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