That’s more than enough. You can’t do any more.

As an Android flavour it should be safe after uninstalling all apps associated with the university. Did any of them need a “device owner” permission? That’s the only way to be more persistent on Android without root access.

The mobile and TV clients are often limited to the codecs with hardware acceleration. Or just selecting a lower bitrate on the client will cause transcoding.

The FS feature is great, it’s just cumbersome to use without a tool.

Snapper works well for a local backup like history both against botched updates and accidental deletion, but eats up the free space with the default settings.

Timeshift is an easy to use GUI but doesn’t support non-default partitions.

Also the quota support had a nasty side effect: freezing the whole system on snapshot deletion.

Are both drives fully encrypted with LUKS? Is trim enabled in both crypttab and fstab?

Thanks for the links! I updated my config from z3fold to zsmalloc and adjusted the vm.page-cluster to test these out.

Reading a bit more, I think when using large max_pool_percent (>30) with Zswap the two solutions are more similar than not. A crucial difference is what use-case is more acceptable since Zswap can cause unresponsiveness (and potential lockup) under high memory pressure. While Zram could result in an OOM crash in a similar worst-case scenario.

Btrfs with compression enabled and subvolumes set.

And enable/automate maintenance services for BTRFS. For example: balace should be run on heavily used system disks or scrub could help detect errors even on single disks.

ZRAM (With proper sysctl.conf like PopOS does).

Could you explain the preference of ZRAM over ZSWAP? I thought the latter was the more advanced and better performing solution. Is there some magic in Pop’s config?

Happy to help! Tough you are right, this is a rather generic error that doesn’t help much just confirms that the GPU is the issue.

At this point it could be a driver issue since there are similar open bug reports. A hardware problem is still possible since you previously said that it’s unstable on windows too, and power related issues can also lead to this error message.

Most distros use systemd and its logging solution: journald. You can use journalctl to read the logs around the time of the crash for e.g.:

• journalctl -S -5m this shows the last 5 minutes. Use this when a game crashes but the system continues working and did not reboot.
• journalctl -b -1 -S -10m this shows the last 10 minutes from the previous boot. Use this if the crash froze the whole system and rebooted.

Look for red lines (errors) and what wrote them. AMD GPU faults usually have the ‘amdgpu’ mentioned, memory errors could appear as ‘protection fault’.

Did you check the system logs to see what caused it?

Many things can result in seemingliy random crashes. Any overclock (including XMP and Expo) or undervolt or even a bios version can be problematic.

I would check first if it’s stable on windows.

What filesystem are you using? Is it encrypted?

Could you run a benchmark to verify if reads and writes are both affected? KDiskMark is like crystaldiskmark or Gnome Disks has a built in benchmark.

Do I need to disable compression on my swap subvolume?

Short: No

Long: it doesn’t matter when mounting multiple subvolumes of the same btrfs partition the options from the first one (usually /) will apply to all. So even if you disable it, that will be ignored.

The old way of creating swap shows the chattr +C line which disables CoW. The same method should work for your Downloads folder since CoW is needed for snapshotting.

You’re right, I linked an old article and it should have been fixed, but there are newer reports of remaining issues. But even this should be fixed in your kernel version already so it was probably a bad guess.

There were issues with TPM so that might affect the older bios versions. You could try disabling it.

No, there isn’t any more risk buying a mining card than any other used card. In both cases you should use a platform/marketplace with buyer protection options. Maybe one additional step is checking the VBIOS when testing.

The non XT is the best value of the 6600 family but depending on local pricing the 6600XT, 6650XT and even the 7600 could make sense. Just keep in mind that these are the same performance class. Some charts show the mentioned GPUs.

There are some used options e.g. 5700 XT-s are really cheap because many of them were mining card. For new cards there aren’t many options RX 6600 has relatively good value, but it’s only worth it if efficiency or features like hw video codecs are important for you.