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Re: text-mode : console : resolution : vga 80x25 : how to set?




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On Fri, Oct 06, 2017 at 05:45:07PM +0530, Mayuresh Kathe wrote:
> On 2017-10-06 05:30 PM, Darac Marjal wrote:
> >On Fri, Oct 06, 2017 at 03:00:50PM +0530, Mayuresh Kathe wrote:
> >>i tried my level best to do it, but have failed.
> >>i used 'dpkg-reconfigure console-setup' and followed the
> >>appropriate steps, but yet my console's screen resolution
> >>is way to high. not that it's a big problem, just an
> >>irritant, the text is usually too tiring to read.
> >>
> >>can i be helped?
> >
> >Yes. Presumably your system is using "kernel mode setting", wherein
> >the kernel is able to set the resolution of the screen. This results,
> >as you note, in a high-resolution console.
> 
> would there be any simple way (instead of recompiling the kernel) to
> disable that kernel mode setting for the resolution?

This should be possible from the Linux kernel "command line", which
you can append in the boot loader line. Try appending "nomodeset" to
the boot line in grub (go into grub menu, press "e" on the entry
you are going to boot, go one down for the kernel line, press "e"
again to edit, append the "nomodeset", with space separator. Then
ENTER to close the edit and "b" to boot). Depending on your video
module you have to append other incantations, see e.g. [1].

Once you know it is working you can add it to the grub config to
make it permanent.

Cheers

[1] https://wiki.archlinux.org/index.php/Kernel_mode_setting#Disabling_modesetting
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