Terminal window resolution better than 80x24?

dmellem · 06-05-2003, 08:11 PM

I've heard that there's a way to set the terminal to a higher resolution the 80x24 using SVGATextMode but that's not in the Red Hat 9 distribution. Is there another method to bump up the number of characters on the screen?

Thanks.

-Dan

zmedico · 06-05-2003, 08:36 PM

I guess your talking about the framebuffer. I use vga=0x318 in my lilo.conf file and that gives me a console with 24 bit color and 1024x768 resolution. The standard Redhat kernel has framebuffer support. Here is the howto:

http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html

kazuni · 06-05-2003, 08:52 PM

Code:

Colours   640x400 640x480 800x600 1024x768 1280x1024 1600x1200
--------+-----------------------------------------------------
 4 bits |    ?       ?     0x302      ?        ?         ?
 8 bits |  0x300   0x301   0x303    0x305    0x307     0x31C
15 bits |    ?     0x310   0x313    0x316    0x319     0x31D
16 bits |    ?     0x311   0x314    0x317    0x31A     0x31E
24 bits |    ?     0x312   0x315    0x318    0x31B     0x31F
32 bits |    ?       ?       ?        ?        ?         ?

easy char i got from the faq

dmellem · 06-06-2003, 12:42 PM

Thanks, guys! That did it.

I did some experimenting and each character is 8px x 16px . When I use the following modes, $COLUMNS x $LINES were:

640 x 400 = 80 x 25
640 x 480 = 80 x 30
800 x 600 = 100 x 37
1024 x 768 = 128 x 48
1280 x 1024 = 160 x 64
1600 x 1200 = 200 x 75

Some of the modes didn't work on some of my computers. When it failed it provided a list of alternatives:

F00 80 X 25
F01 80 X 50
F02 80 X 43
F03 80 X 28
F05 80 X 30
F06 80 X 34
F07 80 X 60
F09 132 X 25
F0A 132 X 43
F0B 132 X 50
F0C 132 X 60
100 40 X 25
154 132 X 43
155 132 X 25
164 132 X 60
165 132 X 50
120 132 X 25
121 132 X 43
122 132 X 50
123 132 X 60

(These probably need to be prefaced by 0x as well....)

Thanks again.

-Dan

dmellem · 06-06-2003, 01:36 PM

Oh, one more question. Is there a way to tell the kernel to change the resolution after boot? Say I want to temporarily change from 128 x 48 to 80 x 25, is there a command I can use to change it to 0x300 until I log out?

Thanks,
-Dan

acid_kewpie · 06-06-2003, 03:14 PM

set vga=blah in the options for your bootloader and it'll be fine.