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Atreillou
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Joined: 29 Oct 2002
Posts: 257

PostPosted: Thu Jul 17, 2003 7:24 am    Post subject: kernel vesa framebuffer Reply with quote

Bonjour a tous,

je boot mon kernel en mode framebuffer en 1024x768.
Mon probleme est que le taux de rafraichissement est de 60 hz...
je n'arrive pas a l'augmenter malgré la commande que je passe au boot dans mon grub.conf:
Code:

title=Gentoo (2.4.20)
root (hd0,0)
kernel (hd0,0)/boot/gentoo root=/dev/hda3 vga=791 video=vesa:1024x768@72,mtrr
initrd=/boot/initrd-1024x768


qq un a une id ?

Merci d'avance[/code]
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Dom
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Joined: 25 Mar 2003
Posts: 416
Location: Menton, France

PostPosted: Thu Jul 17, 2003 7:41 am    Post subject: Reply with quote

Moi aussi j'ai le même problème. Apparemment ce n'est pas possible d'avoir mieux que 60 Hz en utilisant le driver vesa (je sais plus trop où j'ai lu ça) :(
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Dom
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Joined: 25 Mar 2003
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Location: Menton, France

PostPosted: Thu Jul 17, 2003 7:48 am    Post subject: Reply with quote

Dom wrote:
je sais plus trop où j'ai lu ça

Ah ben si, c'était là : Pas d'image au boot

Je cite :
Starch wrote:
oui j'ai lu ça qq part aussi, dans Documentation/fb/vesafb.txt

Code:

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.


ce n'est guère rassurant, mais qqpart, j'ai vu qu'il y-avait un fbmodes ou qqch comme ça... enfin, ça doit être possible !

Starch' -- confiant
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Atreillou
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Joined: 29 Oct 2002
Posts: 257

PostPosted: Thu Jul 17, 2003 9:26 am    Post subject: Reply with quote

ok... je vais voir sir je trouve un driver pour une savage...
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