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Date:   Sun, 31 Mar 2019 13:19:44 +0100
From:   Sudip Mukherjee <>
To:     Yifeng Li <>
Cc:     Teddy Wang <>,
        Bartlomiej Zolnierkiewicz <>,,,,
Subject: Re: [PATCH 4/8] fbdev: sm712fb: fix boot screen glitch when sm712fb
 replaces VGA.

On Sun, Mar 17, 2019 at 06:25:00AM +0800, Yifeng Li wrote:
> When the machine is booted in VGA mode, loading sm712fb would cause
> a glitch of random pixels shown on the screen. To prevent it from
> happening, we first clear the entire framebuffer, and we also need
> to stop calling smtcfb_setmode() during initialization, the fbdev
> layer will call it for us later when it's ready.
> Signed-off-by: Yifeng Li <>
> Cc:  # v4.4+

Tested-by: Sudip Mukherjee <>


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