SavvyBeardedFish

That dump didn't reveal any particular useful information, however it seems like multiple people are reporting issues with mesa + segfault, e.g. https://bbs.archlinux.org/viewtopic.php?id=301550

Mesa v24.3.2-1 in Arch should revert that issue, Mesa v24.3.1 seems to be the problem one

You could check the backtrace of one of your crashes

coredumpctl debug
> bt

And then dump that trace here

It might be related to Mesa/GPU drivers

Sounds like you might just be max'ing out the capacity of the coax cable as well (depending on length/signal integrity). E.g. ITGoat (not sure how trustworthy this webpage is, just an example) lists 1 Gbps as the maximum for coax while you would typically expecting less than that, again depending on your situation (cable length, material, etc)

What's your situation into the wall? Depending on country/ISP/regulations they might give you up to 1000 Mbps under the assumption that it's a single line going to a single user, however quite often that line is shared with potentially a lot of different customers.

Some countries allows you to buy packages where you have a standalone line going to your wall, however at an additional cost

If all nodes are connected through ethernet to each other (or at least one common node) you could go for OpenWRT's 'Dumb AP' setup as well

Edit: Already mentioned here; https://feditown.com/comment/1980836

Maintainer has been absent for some time so kernel v6.11 and v6.12 isn't supported OOTB, to get it to work with kernel v6.11 you need to pull the fix from: !48

Additionally you can try and force use amdgpu rather than radeon, by setting the kernel flags:

radeon.cik_support=0 radeon.si_support=0 amdgpu.cik_support=1 amdgpu.si_support=1 amdgpu.dc=1

Source

Device initalization failed according to the Xorg logs;

1. Dump your firmware version
2. Dump your kernel version
3. Dump your kernel logs (dmesg or journalctl -k)

No bios update, but you most likely received both microcode updates (which is what will fix/mitigate the Intel issue, the bios is only to ensure everybody gets the microcode update) and firmware updates (from linux-firmware)

Of course non-mainlined (i.e. not in the linux kernel) firmware is a bit more iffy, luckily it's getting slowly better with OEMs using fwupd for those scenarios

Could it be an issue with the Nvidia drivers, boot with acpi=off and then install the (proprietary) nvidia drivers and then reboot to see if it boots normally now?

Running: swaymsg for_window "[app_id=mpv] opacity 0.5"

Works as expected on my end, are you missing just executing for_window?

Note, you can also add multiple rules in the same execution, e.g.

for_window {
    [app_id=mpv] opacity 0.85
    [app_id=LibreWolf] opacity 0.85
}

Also, note that app_id of LibreWolf is capitalized in that manner. You can get that information [app_id, shell etc] by running swaymsg -t get_tree

Feel like most people still do the scripting in Bash for portability reasons, and then just run Fish as the interactive shell