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framebuffer

Tips and Instructional topics. Not for support questions.

framebuffer

Postby nadir » Mon Jun 18, 2012 2:53 pm

Kinda like this:

1) install v86d package

2) add uvesafb to initrd configuration:

# echo uvesafb >> /etc/initramfs-tools/modules

3) determine available video modes:

# modprobe uvesafb
# cat /sys/bus/platform/drivers/uvesafb/uvesafb.0/vbe_modes

4) configure uvesafb mode_option:

# echo options uvesafb mode_option=1024x768-32 scroll=ywrap > /etc/modprobe.d/uvesafb.conf

5) rebuild initrd:

# update-initramfs -k all -u

by Penguin Skinner, from here:
http://www.debianuserforums.org/viewtop ... =10#p17059

More links:
http://blog.samat.org/2010/11/09/High-r ... ffer#GRUB2
http://kmandla.wordpress.com/2010/04/16 ... lications/
So i herd u liek mudkip?
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Re: framebuffer

Postby fsmithred » Wed Jun 20, 2012 3:17 am

Why? What does it do?
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Re: framebuffer

Postby nadir » Thu Jun 21, 2012 6:15 pm

That is a more tricky question than it seems, at least for me.
Why did i do it?
I had bad font-quality in tty and
after startx, logging out of X again, resolution has changed (it was tiny, barely readable).

What people usually do with it, i think is using quasi-gui apps on tty:
fbi -> image-viewer, comes with a pdf-reader, but i can't find the name right now.
fbterm -> terminal like
directvnc -> VNC
bb -> ASCII-art demo based on AAlib
... etc

On my encrypted installations i run into problems. Some stop booting. Can't figure it out. I need to use a live-CD, cryptsetup luksOpen the partitions, mount them, mount {sys, dev, prog}, chroot, remove v86d, update-initramfs -k all -u. In short: you have been warned. :-)

I am pretty sure that it is only interesting for people who regulary use their systems CLI-only
(on my old PCs the gui can be annoying, say if all i do is a bit of programming training)
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Re: framebuffer

Postby anticapitalista » Thu Jun 21, 2012 8:59 pm

nadir,

You might be interested in this thread over at the antiX forum.

http://antix.freeforums.org/further-adv ... ilit=Xless
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Re: framebuffer

Postby fsmithred » Fri Jun 22, 2012 3:44 pm

Thanks. I actually added uvesafb almost a year ago, after I replaced my motherboard, and I couldn't remember if it did anything. I know it didn't fix the problem I was having (unresponsive console after a few commands - that ended up being the cool 'n' quiet setting in the bios.) If I ever get some spare time, I'll play with the settings and see what happens. BTW, I'm using encrypted /home and / here, and I don't recall any problems with uvesafb.
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Re: framebuffer

Postby nadir » Fri Jun 22, 2012 4:08 pm

anticapitalista: thanks for the link
(lots of good tips to be found at the antiX forum, btw. I don't know a lot, but for a few i have to go there regulary...)

fsmithred:
The problem is that i deal with two subjects i don't know well: encryption and framebuffer.
Even if i remove v86d again, i still got sharp fonts and avoid the problem with cli->gui-cli -> little fonts. So for me it is fine to remove it again.

One thing i would love to have got:
colored boot (like antiX and other distros too), and a background behind the tty
(that is above me, but that i would love to have)
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Re: framebuffer

Postby fsmithred » Sat Aug 31, 2013 7:48 pm

nehal, did you reply to the wrong thread? This sounds like part of a different discussion.
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