linux-kernel - Re: [BUG] AMD Radeon Pro 5600M with 8GB of HBM2 memory shows blank screen on Linux

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Message-ID: <CA3D493A-3695-46ED-A78A-D6C6709FDBF1@live.com>
Date:   Tue, 27 Dec 2022 16:15:33 +0000
From:   Aditya Garg <gargaditya08@...e.com>
To:     Alex Deucher <alexdeucher@...il.com>
CC:     "harry.wentland@....com" <harry.wentland@....com>,
        "sunpeng.li@....com" <sunpeng.li@....com>,
        "Rodrigo.Siqueira@....com" <Rodrigo.Siqueira@....com>,
        "alexander.deucher@....com" <alexander.deucher@....com>,
        "christian.koenig@....com" <christian.koenig@....com>,
        "Xinhui.Pan@....com" <Xinhui.Pan@....com>,
        Orlando Chamberlain <redecorating@...tonmail.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>
Subject: Re: [BUG] AMD Radeon Pro 5600M with 8GB of HBM2 memory shows blank
 screen on Linux

> 
> Can you file a bug report:
> https://gitlab.freedesktop.org/drm/amd/-/issues/

https://gitlab.freedesktop.org/drm/amd/-/issues/2318

> 
> What sort of monitor are you using?  It looks to be failing mode validation:
> [drm] Mode Validation Warning: Urgent latency failed validation.
> 

Well its Apple's 16 inch built in Retina display.

The same is used in models with :-
1. AMD Radeon Pro 5300M with 4GB of GDDR6 memory
2. AMD Radeon Pro 5500M with 4GB of GDDR6 memory
3. AMD Radeon Pro 5500M with 8GB of GDDR6 memory

But these models work perfectly with AMD GPU enabled.