Messages

1

GPU Compute / Accelerators / Re: Blackbird Radeon RX580

« on: November 09, 2021, 07:32:47 pm »

@MPC7500, we have a winner!

Code: [Select]

sudo grubby --update-kernel=ALL --args="modprobe.blacklist=ast"
...achieved the desired result.

Thanks!

2

GPU Compute / Accelerators / Re: Blackbird Radeon RX580

« on: November 08, 2021, 05:46:00 pm »

Progress, of a sort.

Adding 'amdgpu.aspm=0' to the kernel parameters at boot as mentioned at https://gitlab.freedesktop.org/drm/amd/-/issues/1723  results in the card producing video during boot (the Fedora logo at the bottom of the screen and a spinner) but as soon as boot reaches the login screen, video disappears and is only available via the onboard HDMI.

I got all excited seeing video there for a few moments...

--
MC

3

GPU Compute / Accelerators / Re: Blackbird Radeon RX580

« on: November 08, 2021, 03:59:18 pm »

@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.

--
MC

4

GPU Compute / Accelerators / Re: Blackbird Radeon RX580

« on: November 08, 2021, 02:56:51 pm »

@ClassicHasClass, I had tried adding 'amdgpu.dc=0' to the kernel command line on boot but it didn't help.

--
MC

5

GPU Compute / Accelerators / Blackbird Radeon RX580

« on: November 07, 2021, 10:16:19 pm »

A couple of years ago I assembled a Blackbird into a case with a Radeon RX580 GPU, installed a version of Fedora Linux and I don't recall having to do anything special to make it work.

This week I dropped the Radeon back into the Blackbird which now runs Fedora 35 Workstation, and it doesn't produce video.

uname -r
5.14.16-301.fc35.ppc64le

The card is seen along with the aspeed one:

lspci | grep VGA
0000:01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7)
0005:02:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics Family (rev 41)

And the kernel is loading modules for it:

lsmod | grep -i amdgpu
amdgpu               8257536  1
drm_ttm_helper        262144  3 drm_vram_helper,ast,amdgpu
ttm                   327680  3 drm_vram_helper,amdgpu,drm_ttm_helper
mfd_core              327680  1 amdgpu
gpu_sched             327680  1 amdgpu
i2c_algo_bit          262144  2 ast,amdgpu
drm_kms_helper        524288  5 drm_vram_helper,ast,amdgpu
drm                   851968  10 gpu_sched,drm_kms_helper,drm_vram_helper,ast,amdgpu,drm_ttm_helper,ttm
i2c_core              327680  8 drm_kms_helper,i2c_algo_bit,at24,ast,amdgpu,i2c_opal,regmap_i2c,drm

The only clue I have found so far comes from dmesg, which says in part:

[  121.619204] amdgpu 0000:01:00.0: [drm] Cannot find any crtc or sizes
[  133.894384] amdgpu 0000:01:00.0: refused to change power state from D0 to D3hot

I don't recall seeing this in the past (though I may have and have just forgotten) but I wonder if someone could point me in the direction of what I'm missing to get this going?

Thanks,
MC