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wilbertnl
Tux's lil' helper
Joined: 01 Jul 2002
Posts: 89
Location: Tulsa, OK, USA
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 Posted: Tue Jul 02, 2002 1:56 am Post subject: vga=971 and FrameBuffer settings |
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I would like to improve my virtual console output when I use VESA 1024x768
I have a nVIDIA GeForce2 MX200, which is VESA compliant, according to fbset.
My startup string is:
vga=0x317 video=vesa:xres:1024,yres:768,depth:16,left:196,right:52,upper:32,lower:1,hslen:96,vslen:3,pixclock:10582
Actually, all these parameters don't change the output at all!
The output on my screen is too wide and the depth is too short.
fbset:
mode "1024x768-76"
___# D: 78.653 MHz, H: 59.949 kHz, V: 75.694 Hz
___geometry 1024 768 1024 768 16
___timings 12714 128 32 16 4 128 4
___rgba 5/11,6/5,5/0,0/0
endmode
Who can shine some light on this?
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Wilbert van Bakel
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shie
n00b
Joined: 19 Jun 2002
Posts: 6
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| Posted: Tue Jul 02, 2002 12:08 pm Post subject: vga=791 ??? |
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i have a geforce2 ti, and use vga=791 and not 971
with great results.
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Shie Erlich
Krusader Krew
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CoronaLover
Retired Dev
Joined: 20 Jun 2002
Posts: 163
Location: Rosh-ha'ayin, Israel
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| Posted: Tue Jul 02, 2002 12:25 pm Post subject: |
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0x317 is 791!!!
try 0x31A |
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wilbertnl
Tux's lil' helper
Joined: 01 Jul 2002
Posts: 89
Location: Tulsa, OK, USA
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| Posted: Tue Jul 02, 2002 2:14 pm Post subject: I tried... |
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| CoronaLover wrote: | 0x317 is 791!!!
try 0x31A |
You are right, I use 791 (or 788 for 800x600)
I gave 0x31A a try, on a 17" monitor the text is small.
And also in this resolution, the output is shifted to the left.
I guess I need 85Hz to get it right, but so far I don't seem to have any control over that.
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Wilbert van Bakel
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CoronaLover
Retired Dev
Joined: 20 Jun 2002
Posts: 163
Location: Rosh-ha'ayin, Israel
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| Posted: Tue Jul 02, 2002 2:17 pm Post subject: |
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i dont know how to change the refresh rate too
and the shifted output is a problem too.
maybe someone can help us? |
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rommel
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Joined: 19 Apr 2002
Posts: 1145
Location: Williamsburg Virginia
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wilbertnl
Tux's lil' helper
Joined: 01 Jul 2002
Posts: 89
Location: Tulsa, OK, USA
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| Posted: Wed Jul 03, 2002 4:52 am Post subject: |
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| rommel wrote: | | [url]...i just added vga=788 to grub...and for me its all good. |
vga=788 works for me too, but my monitor is capable of 1024x786. And actually it works, but the output is too wide and too short.
Even 1280x1024 works, although the output is shifted to the left.
I am hoping to find a way to adjust the refresh rate to 85Hz, I bet it looks great then!
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Wilbert van Bakel
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rommel
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Joined: 19 Apr 2002
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Location: Williamsburg Virginia
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| Posted: Wed Jul 03, 2002 5:17 am Post subject: |
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well didnt that howto cover something about refresh rates?...my monitor is a 24" sony....anything higher then 788 is just too small
edit:
Refresh rates
=============
There is no way to change the vesafb video mode and/or timings after
booting linux. If you are not happy with the 60 Hz refresh rate, you
have these options:
* configure and load the DOS-Tools for your the graphics board (if
available) and boot linux with loadlin.
* use a native driver (matroxfb/atyfb) instead if vesafb. If none
is available, write a new one!
* VBE 3.0 might work too. I have neither a gfx board with VBE 3.0
support nor the specs, so I have not checked this yet. |
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wilbertnl
Tux's lil' helper
Joined: 01 Jul 2002
Posts: 89
Location: Tulsa, OK, USA
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| Posted: Thu Jul 04, 2002 1:04 am Post subject: 1024x768 works now fine on my monitor |
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Last night I wanted to see how vga=791 looks like after adjusting my monitor. So I did, and I expected that X and MS Windows would be messed up after playing around with the monitor buttons.
But surprisingly, that didn't happen! Must be the advantage of 'multisync', but I had never seen that before.
So, I adjusted the output for the console, and Windows is stilling positioned right on my monitor.
Great, Problem solved! 
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Wilbert van Bakel
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rommel
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| Posted: Thu Jul 04, 2002 2:11 am Post subject: |
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| well so your happy then with the vga=791 option in linux?...i thinkon a regualr screen like 17 0r 19 inch that would be nice looking |
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wilbertnl
Tux's lil' helper
Joined: 01 Jul 2002
Posts: 89
Location: Tulsa, OK, USA
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| Posted: Thu Jul 04, 2002 3:57 am Post subject: |
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| rommel wrote: | | well so your happy then with the vga=791 option in linux?...i think on a regular screen like 17 or 19 inch that would be nice looking |
I do have a 17" tube, and yes, I'm happy with 1024x768.
It gives me 48 lines and 128 columns. 
Now I want to try SVGAText... I found the source.
I understand from the README that this application has even more options.
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Wilbert van Bakel
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