Dev1 Galaxy Forum / Scrolling Output in the Console Window

Re: Scrolling Output in the Console Window

dummy@example.com (GlennW) — Tue, 11 Apr 2023 22:07:59 +0000

Has anybody worked out how to get the tty's to stay after updating/upgrading Daedalus?

I use them sparely, but very often it's the only way to edit configs and/or install required packages.

Sorry for the hijack... it is a pita.

Re: Scrolling Output in the Console Window

dummy@example.com (bai4Iej2need) — Tue, 11 Apr 2023 19:20:48 +0000

steve_v wrote:

bai4Iej2need wrote:
Scrolled up and down on the local console and it works again.
Wait, what? Are you telling me that this stupid "nobody uses TTYs any more" regression has actually been fixed?

No sorry , I must have been in another -what ever - world
Today I have seen that busybox still can do the scroll, but pure kernel tty console cannot.
So I must take that back.

Re: Scrolling Output in the Console Window

dummy@example.com (Head_on_a_Stick) — Fri, 27 Jan 2023 06:41:08 +0000

Head_on_a_Stick wrote:

I've been using it for about five years on both the family laptops (running stable ofc) with no problems at all.

^ This is a lie. I've just remembered https://bugs.debian.org/cgi-bin/bugrepo … ug=1022042 — I had to boot up an Arch live ISO image, mount the root partition, arch-chroot in, downgrade the kernel and hold it to that version for a few days until the fixed kernel was pushed. A simple fix but the system was effectively un-bootable without intervention. So that's one breakage in five years. Not bad, I suppose, but not perfect either.

Re: Scrolling Output in the Console Window

dummy@example.com (steve_v) — Tue, 24 Jan 2023 20:43:38 +0000

Head_on_a_Stick wrote:

It's been enabled by default since stretch, at least for the GNOME desktop.

I was unaware that it's enabled by default now, but then I would be, because "expert" mode netinstalls with --no-recommends, and, well, GNOME *shudder*.

Re: Scrolling Output in the Console Window

dummy@example.com (Head_on_a_Stick) — Tue, 24 Jan 2023 20:36:45 +0000

steve_v wrote:

unattended-upgrades has been available (as opposed to mandatory, ala microsoft) in debian

It's been enabled by default since stretch, at least for the GNOME desktop.

I've been using it for about five years on both the family laptops (running stable ofc) with no problems at all. It's really nice, I don't have to touch those machines at all, which is the ideal for me.

EDIT: the only caveat would be if the kernel was upgraded and then a device needing a new module to be loaded was plugged in, which would then fail. I've never actually encountered that though.

Re: Scrolling Output in the Console Window

dummy@example.com (steve_v) — Tue, 24 Jan 2023 20:33:23 +0000

blackhole wrote:

What could possibly go wrong?

IME, very little. unattended-upgrades has been available (as opposed to mandatory, ala microsoft) in debian and derivatives for as long as I can remember, and I have several machines that have been running it for well over a decade without any drama (with one notable recent exception, but that was a "devuan shipped nonfunctional configs", not "unattended-upgrades ate my lunch").

I probably wouldn't bother with it on a desktop pc, but for headless boxes, especially if you have many headless boxes you can't be arsed updating manually one at a time (or remembering they exist for that matter), it's pretty dang handy.

bai4Iej2need wrote:

Scrolled up and down on the local console and it works again.

Wait, what? Are you telling me that this stupid "nobody uses TTYs any more" regression has actually been fixed?

Re: Scrolling Output in the Console Window

dummy@example.com (blackhole) — Tue, 24 Jan 2023 16:00:12 +0000

Unattended upgrades: What could possibly go wrong? (ask Microsoft)

Re: Scrolling Output in the Console Window

dummy@example.com (bai4Iej2need) — Tue, 24 Jan 2023 15:47:12 +0000

My headless X-less server sent me a mail this morning, it had a new kernel from unattended upgrades in the last night.
Told me I should restart. Which I did. Which failed.
I had to move the server to a place with kbd mouse and monitor. Fixed it. Scrolled up and down on the local console and it works again.
Explanation : The unattended upgrade was not the cause of the failure. This would have happened on any restart. It was an error in one of my scripts. (file not found)

new is 5.10.0-21-amd64

Wonder still happen.

Server is now back in place.

Re: Scrolling Output in the Console Window

dummy@example.com (bai4Iej2need) — Sun, 03 Apr 2022 21:05:32 +0000

tested now with kernel linux-image-4.19.0-20 from beowulf, but the function is the same missing.

vgacon.c patch has been backported to 4.19. to remove the code.

Re: Scrolling Output in the Console Window

dummy@example.com (bai4Iej2need) — Sun, 03 Apr 2022 19:30:00 +0000

https://www.phoronix.com/forums/forum/s … ost1207037

Not everybody is happy with dropping this code, when LTv makes a ... decision

AND : /usr/bin/less is not available in runlevel 1 !

Re: Scrolling Output in the Console Window

dummy@example.com (chris2be8) — Sun, 03 Apr 2022 16:22:11 +0000

I've just pressed ctrl-alt-f2, logged on, typed ls to get a few screenfuls of ouput and shift-page_up and shift-page_down work. But if I press ctrl-alt-f7 to get back to the GUI, then ctrl-alt-f2 the scroll buffer is cleared.

This is on ascii (I run CUDA on an old GPU and dare not update it because Nvidia have probably removed support for the GPU from current releases of their drivers and runtime).

Chris

Re: Scrolling Output in the Console Window

dummy@example.com (yeti) — Sun, 03 Apr 2022 15:05:53 +0000

bai4Iej2need wrote:

I tested tmux and screen on the DUT console.
They do not bring this functionality with them.

Try harder.

Screen gives me a scrollback in "real texmode" and GUIy terminals. Just not with PgUP. Use doping: Read a bit more about it. Look for ^A ESC or ^A [.
Tmux probably does it in a very similar way.

Re: Scrolling Output in the Console Window

dummy@example.com (hevidevi) — Sun, 03 Apr 2022 13:18:00 +0000

command | less

command | more

Re: Scrolling Output in the Console Window

dummy@example.com (bai4Iej2need) — Sun, 03 Apr 2022 13:10:11 +0000

and I made another test :
ssh'ed from the console of the kernel 5.10 laptop to the server with Kernel 4.19
and the scrolling function is gone.

As I tend to work on the lowest level necessary this is really a PITA.

Re: Scrolling Output in the Console Window

dummy@example.com (bai4Iej2need) — Sun, 03 Apr 2022 12:42:52 +0000

I tested tmux and screen on the DUT console.
They do not bring this functionality with them.

so Linus Tv is wrong, that nobody uses this functionality.
Anyone, who must access bare HW through the keyboard without intervening ssh tunnels etc, falls back to the functionality.
This haṕpens mostly during the first manual install.
And it is annoying, if the function is there in all other forms of graphic terminals, shells and tunnels, but not during a direct access.

Who tells LTV ?