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gionnico
Apprentice
Joined: 29 Jun 2007
Posts: 192
Location: Italy
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 Posted: Wed Jul 04, 2007 11:44 pm Post subject: fbcon: setting refresh rate |
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I've compiled the support for framebuffer vesafb-tng.
At boot-time, I would like to set a resolution and a refresh rate.
Well, the handbook isn't very clear to me, there...
I mean, I have a 32-bit machine, so I've chosen vesafb-tng.
Now, the example shows
Is this right for me or should I set "vesafb-tng"?
Secondly, I'd rather to use the second method (without the vga option).
Is this right? I add it after the last option, which, in my case is root=/dev/xxx
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video=vesafb:mtrr:3,ywrap,1280x1024-32@85
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Anyway, it doesn't work. I can set whatever I like there, and the system boots correctly without any change....  |
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didymos
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Joined: 10 Oct 2005
Posts: 4798
Location: California
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| Posted: Thu Jul 05, 2007 3:20 am Post subject: |
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No, it's just a modification of the vesafb code, so it's still called vesafb. See here:
http://dev.gentoo.org/~spock/projects/vesafb-tng/
Is it ignoring all of it? I.e., does it just start in 1024x768x16@60 instead?
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Thomas S. Howard |
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gionnico
Apprentice
Joined: 29 Jun 2007
Posts: 192
Location: Italy
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| Posted: Thu Jul 05, 2007 11:31 am Post subject: |
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Ah, thanks for the clarification!
And yes, the kernel was ignoring it .. because 1280x1024 is what I have set for kernel defaults, whereas the refresh rate is ignored ... 
Now it is 60, and it flickers (particularly while I'm making menuconfig with that grey background  ): I'd like to set 85 (much better).. :\ |
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didymos
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Joined: 10 Oct 2005
Posts: 4798
Location: California
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| Posted: Thu Jul 05, 2007 12:12 pm Post subject: |
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Will it let you change the refresh with the fbset command? I'm not sure how the mode you want translates into fbset-speak, though.
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