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From:   Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu, 7 Jan 2021 17:13:58 +0100
Message-ID: <CAKMK7uHQqNjk=1Wv0Mgh+SCTc78wRnRfjS1qQHOb7WE36+_rdA@mail.gmail.com>
Subject: Re: [Patch] fbcon: i want fbcon soft scrollback feature come back
To:     xuhuijie <huijiexu295@gmail.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
Cc:     Greg KH <gregkh@linuxfoundation.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        Peilin Ye <yepeilin.cs@gmail.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
        George Kennedy <george.kennedy@oracle.com>,
        Nathan Chancellor <natechancellor@gmail.com>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        Linux Fbdev development list <linux-fbdev@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Thu, Jan 7, 2021 at 4:48 PM xuhuijie <huijiexu295@gmail.com> wrote:
> This commit 50145474f6ef(fbcon: remove soft scrollback code) remove soft scrollback in
> fbcon. So the shift+PageDown and shift+PageUp is missing. But PageUp is a vary important
> feature when system panic or reset. I can get log by PageUp before, but now there is no
> way to get. Especially on the server system, we always use bmc to control computer.
> So I hope the community can add this feature back.

Adding Linus.

Short summary: Not going to happen without significant effort:

https://lore.kernel.org/stable/CAKMK7uEy-b_nPmoh9WYA4NCsK8AL_Jk+-+FRZsrk6NOqqrvriA@mail.gmail.com/

Cheers, Daniel


--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch