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To:     Aditya Garg <gargaditya08@live.com>
From:   Orlando Chamberlain <redecorating@protonmail.com>
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Subject: Re: [BUG] AMD Radeon Pro 5600M with 8GB of HBM2 memory shows blank screen on Linux
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On Mon, 26 Dec 2022 21:44:06 +1100
"Aditya Garg" <gargaditya08@live.com> wrote:

> The AMD Radeon Pro 5600M with 8GB of HBM2 memory GPU is found in
> MacBook Pro 16 inch, 2019 (MacBookPro16,4).
>=20
> The GPU fails to work on Linux, thus a blank black screen gets
> displayed on boot.
>=20
> If nomodeset is added as a kernel parameter, we are able to access
> Linux easily.
>=20
> The link below contains the journalctl of the failed boot :-
> https://gist.github.com/AdityaGarg8/dfe1a1c23bf2b92b640dad89f55b73c7
>=20
> Thanks
> Aditya

I'm not sure if it was an unrelated issue, but on older versions
including 5.17.1, psp_v11_0_bootloader_load_sysdrv would timeout and
return -ETIME. I'm not sure when it started having Mode Validation
Warnings instead, but these errors are what it previously had:

[    5.136077] [drm:psp_hw_start [amdgpu]] *ERROR* PSP load sys drv failed!
[    5.136233] [drm:psp_hw_init [amdgpu]] *ERROR* PSP firmware loading fail=
ed
[    5.136351] [drm:amdgpu_device_fw_loading [amdgpu]] *ERROR* hw_init of I=
P block <psp> failed -22
[    5.136458] amdgpu 0000:03:00.0: amdgpu: amdgpu_device_ip_init failed
[    5.136477] amdgpu 0000:03:00.0: amdgpu: Fatal error during GPU init
[    5.136540] amdgpu 0000:03:00.0: amdgpu: amdgpu: finishing device.
[    5.137815] amdgpu: probe of 0000:03:00.0 failed with error -22

The patch used to test this and the kernel log I received from someone
using that patch are on this page:
https://gist.github.com/Redecorating/645a62eec4fb06e03f384396f483fa37



From mboxrd@z Thu Jan  1 00:00:00 1970
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To: Aditya Garg <gargaditya08@live.com>
From: Orlando Chamberlain <redecorating@protonmail.com>
Subject: Re: [BUG] AMD Radeon Pro 5600M with 8GB of HBM2 memory shows blank
 screen on Linux
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On Mon, 26 Dec 2022 21:44:06 +1100
"Aditya Garg" <gargaditya08@live.com> wrote:

> The AMD Radeon Pro 5600M with 8GB of HBM2 memory GPU is found in
> MacBook Pro 16 inch, 2019 (MacBookPro16,4).
>=20
> The GPU fails to work on Linux, thus a blank black screen gets
> displayed on boot.
>=20
> If nomodeset is added as a kernel parameter, we are able to access
> Linux easily.
>=20
> The link below contains the journalctl of the failed boot :-
> https://gist.github.com/AdityaGarg8/dfe1a1c23bf2b92b640dad89f55b73c7
>=20
> Thanks
> Aditya

I'm not sure if it was an unrelated issue, but on older versions
including 5.17.1, psp_v11_0_bootloader_load_sysdrv would timeout and
return -ETIME. I'm not sure when it started having Mode Validation
Warnings instead, but these errors are what it previously had:

[    5.136077] [drm:psp_hw_start [amdgpu]] *ERROR* PSP load sys drv failed!
[    5.136233] [drm:psp_hw_init [amdgpu]] *ERROR* PSP firmware loading fail=
ed
[    5.136351] [drm:amdgpu_device_fw_loading [amdgpu]] *ERROR* hw_init of I=
P block <psp> failed -22
[    5.136458] amdgpu 0000:03:00.0: amdgpu: amdgpu_device_ip_init failed
[    5.136477] amdgpu 0000:03:00.0: amdgpu: Fatal error during GPU init
[    5.136540] amdgpu 0000:03:00.0: amdgpu: amdgpu: finishing device.
[    5.137815] amdgpu: probe of 0000:03:00.0 failed with error -22

The patch used to test this and the kernel log I received from someone
using that patch are on this page:
https://gist.github.com/Redecorating/645a62eec4fb06e03f384396f483fa37