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#1 2011-03-06 23:38:14

student975
Member
From: Russian Federation
Registered: 2011-03-05
Posts: 613

too high terminal resolution

Hi!

I have installed AL onto USB flash drive (preparing for home NAS). At some booting point terminal switches to very high resolution mode. How to eliminate all these video-tunings and keep raw terminal mode (without loading unneeded modules, and so on)?


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#2 2011-03-07 00:19:07

lifeafter2am
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From: 127.0.0.1
Registered: 2009-06-10
Posts: 1,332

Re: too high terminal resolution


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#3 2011-03-07 00:36:12

karol
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Registered: 2009-05-06
Posts: 25,440

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#4 2011-03-07 09:00:17

student975
Member
From: Russian Federation
Registered: 2011-03-05
Posts: 613

Re: too high terminal resolution

Thanks for the tips!

Yes, adding '<driver name>.modeset=0' to kernel options prevents mode switching. On the other hand both video driver as well as drm module are loading. At case when X11 will not be used at all I think there is more radical way to prevent all these video-related steps. I'd want to keep console at state it was before loading video related modules. Something must be disabled smile


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#5 2011-03-07 09:49:09

karol
Archivist
Registered: 2009-05-06
Posts: 25,440

Re: too high terminal resolution

What happens if you remove the drivers for you graphics card?

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#6 2011-03-07 10:00:02

student975
Member
From: Russian Federation
Registered: 2011-03-05
Posts: 613

Re: too high terminal resolution

karol, what do you mean by "remove"?


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#7 2011-03-07 10:01:19

karol
Archivist
Registered: 2009-05-06
Posts: 25,440

Re: too high terminal resolution

student975 wrote:

karol, what do you mean by "remove"?

Uninstall, e.g. 'pacman -Rns xf86-video-nouveau'.

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#8 2011-03-07 10:10:27

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: too high terminal resolution

Blacklist the kernel DRM driver.

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#9 2011-03-07 10:30:06

student975
Member
From: Russian Federation
Registered: 2011-03-05
Posts: 613

Re: too high terminal resolution

Removing or bkacklisting a video/drm driver(s) isn't the aim. The aim is to keep raw text terminal regardless current video hardware (which is a matter of change) and installed video drivers. So something in init process must be configured. Who does load video and drm modules? At which point?

Last edited by student975 (2011-03-07 10:31:07)


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#10 2011-03-07 12:13:48

Gusar
Member
Registered: 2009-08-25
Posts: 3,605

Re: too high terminal resolution

udev does. And blacklisting *is* the correct way here. You don't want the driver to load. So you blacklist it.

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#11 2011-03-07 13:30:32

student975
Member
From: Russian Federation
Registered: 2011-03-05
Posts: 613

Re: too high terminal resolution

OK, as far as !drm is an official legal way - done and tried.
Thanks!


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