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From:   Aditya Garg <gargaditya08@live.com>
To:     "harry.wentland@amd.com" <harry.wentland@amd.com>,
        "sunpeng.li@amd.com" <sunpeng.li@amd.com>,
        "Rodrigo.Siqueira@amd.com" <Rodrigo.Siqueira@amd.com>,
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        "Xinhui.Pan@amd.com" <Xinhui.Pan@amd.com>
CC:     "amd-gfx@lists.freedesktop.org" <amd-gfx@lists.freedesktop.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Orlando Chamberlain <redecorating@protonmail.com>
Subject: [BUG] AMD Radeon Pro 5600M with 8GB of HBM2 memory shows blank screen
 on Linux
Thread-Topic: [BUG] AMD Radeon Pro 5600M with 8GB of HBM2 memory shows blank
 screen on Linux
Thread-Index: AQHZGRb6uT6dJkmogkGgN01AW6oP/Q==
Date:   Mon, 26 Dec 2022 10:44:06 +0000
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The AMD Radeon Pro 5600M with 8GB of HBM2 memory GPU is found in MacBook Pr=
o 16 inch, 2019 (MacBookPro16,4).

The GPU fails to work on Linux, thus a blank black screen gets displayed on=
 boot.

If nomodeset is added as a kernel parameter, we are able to access Linux ea=
sily.

The link below contains the journalctl of the failed boot :-
https://gist.github.com/AdityaGarg8/dfe1a1c23bf2b92b640dad89f55b73c7

Thanks
Aditya=