Display Resolution Problem
Jack Lauman
jlauman at nwcascades.com
Tue Apr 14 05:00:31 UTC 2009
I'd be happy with the 80x25 characters if it would actually fill the
screen. I have 3 Compag laptops this is the newwst and the only one that
behaves this way.
For some reason the screen doesn't fill up it ends up centered and uses
only about 1/3 of the available screen area.
I'm not sure what's causing it.
Thanks,
Jack
Richard Shaw wrote:
> On Mon, Apr 13, 2009 at 9:14 PM, Kam Leo <kam.leo at gmail.com> wrote:
>> On Mon, Apr 13, 2009 at 3:06 PM, Jack Lauman <jlauman at nwcascades.com> wrote:
>>> I have a Compaq Presario 2500 (Model No: 2525US)
>>>
>>> When booting into run level 3 (command line) on Fedora 9 the video occupies
>>> less than 2/3 of the total screen. Using startx to launch xwindows works
>>> fine and uses the full screen.
>>>
>>> Is there a way to control the screen size in run level 3?
>>>
>>> Thanks,
>>>
>>> Jack
>> Default runlevel 3 console screen is 80x25 characters. If you have
>> lines of text 132 characters wide then you are at the maximum
>> supported, 132x40 characters.
>>
>> Here is a table of values courtesy of LinuxQuestions.org,
>> http://www.linuxquestions.org/blog/archtoad6-147095/2007/12/29/vga-resolution-codes-for-grub-and-lilo-830/
>>
>> VGA Resolution Codes for GRUB & Lilo
>> --- Depth --
>> Colors bits 640x480 800×600 1024×768 1152×864 1280×1024 1600×1200
>> 256 8 vga=769 vga=771 vga=773 vga=353 vga=775 vga=796
>> 32000 ? vga=784 vga=787 vga=790 vga= ? vga=793 vga= ?
>> 65000 16 vga=785 vga=788 vga=791 vga=355 vga=794 vga=798
>> 16.7M 24 vga=786 vga=789 vga=792 vga=795 vga=799
>>
>> Try appending one of the settings ("vga=value") to kernel line in grub
>> to optimize viewing the screen.
>
> Another option is to have the kernel tell you what modes your chipset
> and display support. When you get to GRUB edit your kernel line and
> append "vga=ask" to it. When you reboot it will give you a list of
> supported modes. You can type in the 3 digit number to try a mode or
> type SCAN to see if it can detect additional modes. Once you find one
> you like, change the "ask" portion to the number of the mode but be
> sure to put "0x" in front of it.
>
> For example, on my desktop I use 1024x768 and I believe that's 318 so
> I would append "vga=0x318" to the kernel line in grub.
>
> Richard
>
>
>
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