Re: [PATCH] Use EDID/DDC data to set better refreshrates on VBE3.0+ videocards on boot

[Pavel Machek]

Hi!

> 
> The following patch requests EDID data from the monitor/graphics card, 
> check it against the vga= setting the user set and when it finds a match 
> sets the refresh rate to the EDID supplied mode (So should be safe, even 
> on broken biosses). This makes working in vesafb mode _allot_ better for 
> your eyes. If either no vesa 3.0 card or VBE/DC EDID data is available 
> it just sets the vesa graphic mode the old tried and tested way (60Hz ugh!).
> 
> I have tested the patch on the following cards with different feature 
> support (All same type monitor though):
> 
> - Geforce2 MX/MX 400: Working at 85hz
> - Geforce 256 SDR: Working at 85Hz
> - GeForce2 - nForce GPU: Not working, no EDID data available
> - VMWare v4: Not working, not a VBE v3.00 card
> 
> Not working, in this case, means that it just used normal 60hz vesa 
> mode. The graphic mode was otherwise working fine.
> 
> What do you think? :)

This is really needed for vesafb to be usefull on non-LCD displays...

-- 
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
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