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Refresh rate going from X back to the console is too high.
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lnxtech
n00b
n00b


Joined: 14 Feb 2006
Posts: 3
PostPosted: Tue Feb 14, 2006 6:26 pm    Post subject: Refresh rate going from X back to the console is too high. Reply with quote
In my kernel under Graphics support i have the Vesa VGA Graphics support turned on and I set the VESA default mode to "1280x1024@60" (This is for the optimal setting for the LCD I use).

In my xorg.conf I have the modeline
Code:
Modeline "1280x1024" 109.62  1280 1336 1472 1720  1024 1024 1026 1062

Which gives me 1280x1024 @ 60 in X11.

All of this works fine, but once I'm in X if I use Ctrl+Alt+F# to go back to a console window my refresh rate jumps to 85hz and my LCD freaks out.
Anyone know why this happens or how I can fix this?
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billiob
Guru
Guru


Joined: 30 Dec 2004
Posts: 425
Location: Paris, France
PostPosted: Thu Feb 16, 2006 1:07 pm    Post subject: Reply with quote
I've got almost the same problem.
I fixed it by adding to my grub.conf the option nocrtc as in the following line :
/boot/grub/grub.conf wrote:
kernel /kernel-2.6.15-gentoo-r1 init=/sbin/bootchartd root=/dev/hda7 CONSOLE=/dev/tty1 splash=verbose,theme:mosaique video=vesafb:nocrtc,ywrap,mtrr,1280x1024-32@60

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