Arch Linux

brittanderson

Member

Registered: 2010-09-16

Posts: 34

fbcon kernel parameter no longer honored with 5.17.1

Using a gpd pocket 3 and kernel 5.16.16 I can rotate the console after boot, but before logging in with startx, by adding the parmeter "fbcon:rotate=1". After upgrading to 5.17.1 this no longer works, and I could not find any other newer method to do so. Reverting back to 5.16 restored the old behavior.

I am unaware if this is expected behavior and a new option is required. I did not see anything obvious looking at the 5.17 release notes.

I am also hoping to be told where to report this if it is the sort of thing that should be reported to the linux kernel developers. Thank you.

Raynman

Member

Registered: 2011-10-22

Posts: 1,539

Re: fbcon kernel parameter no longer honored with 5.17.1

config change in Arch's kernel:
https://github.com/archlinux/svntogit-p … 415beL6549

brittanderson

Member

Registered: 2010-09-16

Posts: 34

Re: fbcon kernel parameter no longer honored with 5.17.1

Okay. Is there any other option for me if I wish to rotate the console and use the newer kernels?

Raynman

Member

Registered: 2011-10-22

Posts: 1,539

Re: fbcon kernel parameter no longer honored with 5.17.1

You mean an alternative if you give up on fbcon:rotate? I don't know (and I don't care to do the research).

But you could just ask for it to be re-enabled; it's not clear whether this was intentional.

Last edited by Raynman (2022-03-30 14:40:14)

brittanderson

Member

Registered: 2010-09-16

Posts: 34

Re: fbcon kernel parameter no longer honored with 5.17.1

No, I wasn't asking for research. You just seemed knowledgeable and might have relevant advice off the top of your head.

Can you tell me, without asking for extra research, the recommended channel for requesting framebuffer console rotation to be re-enabled? Do I use a particular mailing list?

Thanks if you have time to reply and no hard feelings if you don't..

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,593

Re: fbcon kernel parameter no longer honored with 5.17.1

Report a bug/regression against the linux package: https://bugs.archlinux.org/

m040601

Member

Registered: 2020-04-20

Posts: 5

Re: fbcon kernel parameter no longer honored with 5.17.1

The bug/regression has  been reported here,

[FS#74291 : [linux][config] 5.17.1.arch1-1-x86_64 breaks framebuffer rotation of console]
(https://bugs.archlinux.org/task/74291)

Remembering everyone that you can also use the "Votes" option there, if this is important to you.

Signed: another Archlinux console and framebuffer heavy user, who lost the ability to rotate his monitor and use it in portrait mode in his plain normal PC with this change.

Last edited by m040601 (2022-03-31 23:54:00)

Raynman

Member

Registered: 2011-10-22

Posts: 1,539

Re: fbcon kernel parameter no longer honored with 5.17.1

No, I wasn't asking for research. You just seemed knowledgeable and might have relevant advice off the top of your head.

Not knowledgeable about fcon, specifically, but its documentation mentioned a required kernel config option for the rotate function, so I checked the source files for the linux package. I didn't really think you expected me to dive much deeper into this; it's just that sometimes I actually go and learn stuff just to answer somebody's question, but not here because (1) lack of interest and (2) a bug report seemed easier.

I figured that pointing to that Arch package as the cause was enough to answer "if it is the sort of thing that should be reported to the linux kernel developers", but I could have been a little more explicit.

m040601

Member

Registered: 2020-04-20

Posts: 5

Re: fbcon kernel parameter no longer honored with 5.17.1

Good news ! This seems to be fixed, and will be availabel in the next release:

Closed by  Jan Alexander Steffens (heftig)
Friday, 01 April 2022, 16:10 GMT
Reason for closing:  Fixed
Additional comments about closing:  enabled in trunk, pending next release

Relevant commit, https://github.com/archlinux/svntogit-p … 4569088481

OP: Don't forget to mark the thread as "SOLVED"

Last edited by m040601 (2022-04-01 18:01:59)