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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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AMD GPUs are cursed for me (self.linux)

submitted 9 months ago by aksdb to c/[email protected]

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Each time I try AMD graphics, something is fucked for me. Back with fglrx, fglrx just sucked, so I used Nvidia. Then I had an AMD right around when they finally had opensource drivers, but it was still buggy as hell. So I went with Nvidia again (first a GTX 790, then a GTX 1060). In the meantime I had a new work notebook where I also went with an AMD APU, and had driver crashes for a long time when I was in video calls and it had to decode multiple streams. That thankfully stabilized with Linux 6.4.

Since sooo many people in the community swear by AMD, I thought "dammit, let's try it again for my new desktop" and got an 7800rx ... and I have to reboot ~5 times until I finally make it to a running xserver or wayland session. Apparently I am hit by this problem (at least I hope so). But that doesn't even read nice ... the fix seems to be to revert another fix for powermanagement. So I either have a mostly non-booting card or suboptimal power management.

I start to regret having chosen AMD .... again :-/ I seem to be cursed.

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[–] [email protected] 5 points 9 months ago (1 children)

Having a bleeding edge kernel can and will come back to bite you. There's a reason why many distros hold back with kernel updates for so long, there's issues that only can be found with user feedback.

From experience, "stable" in the kernel world doesn't mean much unfortunately. I encountered dozens of issues over various versions and different hardware already and it's the main reason I don't run rolling release distros on my main rig.

There's also been enough times where the latest Nvidia driver borked my test system at work so I'm fine with just not running the latest kernel instead.

[–] aksdb 1 points 9 months ago (1 children)

I have the same problem with the LTS kernel. Just tried. First time it booted but locked up on shutdown. The next cold boot it immediately went to black screen after loading amdgpu. ([drm:amdgpu_gfx_enable_kcq [amdgpu]] *ERROR* KCQ enable failed). Next boot too. All with kernel 6.6.14.

[–] [email protected] 1 points 9 months ago (1 children)

That's strange, 6.6.14 is the same version that's on Fedora currently. My friend with a 7900 XTX is still on 6.5.0 so I can't get him to test that version right now.

Fix is merged already though: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9c2f0338bbd132a4b12b988004d796798609d297 Should hopefully not be long before it is backported.

[–] aksdb 1 points 9 months ago

In the linked issue the user uncle jack wrote

I've set up Fedora Workstation 39 with hibernate to rule out potential issues caused by my current system. Rebooting from Linux to Linux still leads to dark boots before reaching the OS. This has kernel 6.6.12. Cold boots seem to be fine after having cut power to the PSU earlier.

So I fear that there is still a deeper issue somewhere. But I'll see what happens after those fixes get backported to 6.7 and hit archlinux. Until then I might have to live with Windows or don't reboot too often. I have yet to figure out how long I need to keep this machine off the power for it to behave like a cold boot. 10s apparently didn't cut it in my latest try (it's a new PC so I still have to learn its quirks).