[Patch] fbcon: i want fbcon soft scrollback feature come back

STALE2101d

3 messages, 3 authors, 2021-01-07 · open the first message on its own page

[Patch] fbcon: i want fbcon soft scrollback feature come back

From: xuhuijie <hidden>
Date: 2021-01-07 15:49:13

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.

Re: [Patch] fbcon: i want fbcon soft scrollback feature come back

From: Daniel Vetter <hidden>
Date: 2021-01-07 16:15:12

On Thu, Jan 7, 2021 at 4:48 PM xuhuijie [off-list ref] 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

Re: [Patch] fbcon: i want fbcon soft scrollback feature come back

From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: 2021-01-07 22:58:27

On 2021/01/08 0:48, xuhuijie 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.
You can configure kdump for panic, and netconsole for reset.
(I don't know whether PageUp key works after panic...)
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