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Messages - sharkcz

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GPU Compute / Accelerators / Re: Blackbird Radeon RX580
« on: November 10, 2021, 03:15:35 am »
Hi Sharkcz, so you too have noticed that changes have been made starting from version 5.14 onwards, which have affected the functioning of AMD GPUs. Is it possible to hope for a correction in good times of this problem in the Linux Kernel by the Kernel team? I had written about the problem, already at the beginning of version 5.14 and therefore I tried to make everyone aware of this problem but at the time, unfortunately few followed me ...
5.14 was OK for my WX4100, the breakage came with 5.15 rc1

The highest chance to get amdgpu driver issues fixed is to report them in the AMD bug tracker ( with an information what particular commit caused the issue (identified using the bisection process).

GPU Compute / Accelerators / Re: Blackbird Radeon RX580
« on: November 10, 2021, 03:09:46 am »
grub is using the GRUB_CMDLINE_LINUX variable defined in /etc/grub/default to set the default value of the kernel parameters for the host Linux

GPU Compute / Accelerators / Re: Blackbird Radeon RX580
« on: November 09, 2021, 08:17:52 am »
@ClassicHasClass, no output during petitboot, but the aspeed's HDMI does. The card's backlight LEDs for its logo *do* light during petitboot but then go out on boot. I seem to recall they used to stay on when the card was working.F35 is Wayland without the xorg option that earlier Fedoras had.

@sharkcz, I'm really, really hoping to not have to go down any sort of a kernel compiling rabbit Hole.

It's not that bad, I was worried myself :-) I would suggest to start with the drm-next-5.14 branch from the AMD tree and it should be ~10 iterations.

GPU Compute / Accelerators / Re: Blackbird Radeon RX580
« on: November 08, 2021, 03:32:10 pm »
For the record, you might hit on a Polaris card starting with 5.15

If you know the version that worked and what does not, then you can bisect. In this case the iteration times would be short, mine was 1 iteration in a day for the bug above ... If you want a "minimized" kernel config derived from the Fedora one which reduces the compile times significantly, let me know. If you need help about bisecting, I can provide that too :-)

Operating Systems and Porting / Re: Fedora 33 LTS 5.10.x kernel RPMs
« on: April 21, 2021, 04:10:39 am »
So at least some good news after the recent fixes :-)

@MPC7500, thanks for testing, it's really a different backtrace.

Due a recent issue with 5.11 kernels breaking Polaris-based cards (like my WX4100) we have now a couple of fixes to the 64k support in the amdgpu driver. We are interested in feedback from other cards as well.

Please install 5.11 kernel from my scratch build - and let us know. The 3 patches are submitted for inclusion in the next Fedora kernel builds via, until they reach mainline. They are in the AMD's drm-next tree.

Operating Systems and Porting / Re: [NEWS] Fedora 32 is released
« on: August 04, 2020, 03:17:02 am »
FWIW there is another bug in the 5.7+ kernels with the amdgpu driver, see, but workaround exists.

User Zone / Re: Fedora Linux Thread
« on: December 16, 2019, 12:31:52 pm »
Best way to install a desktop for a Power machine is to start from the Everything netinstall ISO, it will offer you all desktops in the installer GUI.

Regarding the "release" conflict, does it go away when you pass "--allowerasing" option to dnf (as suggested)? Also as this is nothing specific to Power I suppose it has been discussed on regular user focused Fedora forums already.

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