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Message-ID: <CAB4CAwd6AanNEMyKDmkEPREbqUA_Q_iQ2oJ_UUw7rhFvk5eWfg@mail.gmail.com>
Date:   Mon, 3 Feb 2020 10:51:56 +0800
From:   Chris Chiu <chiu@...lessm.com>
To:     Alexander.Deucher@....com, christian.koenig@....com,
        David1.Zhou@....com, amd-gfx@...ts.freedesktop.org,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Linux Upstreaming Team <linux@...lessm.com>
Subject: Fails to lauch X on laptop with Ryzen 7 4700U

We are working with new laptops that have the Ryzen 7 4700U.

It fails to launch X so I can only access via the virtual terminal.
I tried with the latest mainline kernel and kernel from
https://cgit.freedesktop.org/~agd5f/linux but no luck. I also boot
the kernel with parameter amdgpu.exp_hw_support=1, but
the system freezes after loading amdgpu and I can't even switch
to the virtual terminal.

I post the bug description and related information on
https://gitlab.freedesktop.org/drm/amd/issues/1031.

Please kindly advise what I should do next.

Thanks
Chris

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