vbe-edid

[Luc Verhaegen]

On Sun, Oct 17, 2010 at 08:14:19PM +0200, Kai-Uwe Behrmann wrote:
> Am 16.10.10, 17:48 +0200 schrieb Luc Verhaegen:
>> When looking into #24348 i dug out the read-edid code to see what i
>> needed to do to separately test the failing 0x4F01 call on vbe with
>> vm86.
>>
>> I ended up rewriting the get-edid tool completely, it is tiny and its
>> functionality is trivial anyway, and now we have:
>> * actual readable C code, MIT license.
>> * useful verbosity.
>> * dumping of only the main edid block to mmm-dddd.edid (just 128bytes as
>> i am too lazy to do things properly).
>>
>> So, vbe-edid is available here:
>> http://cgit.freedesktop.org/~libv/vbe-edid
>
> Error: iopl failed: Operation not permitted
>
> It seems to need privileged rights.
>
> As root:
> Found VBE Version 3.0.
> VBE Call 0x15 failed!
>
> What are the requirements to run vbe-edid successfully?
>
>
> kind regards
> Kai-Uwe Behrmann

No idea what is going wrong there, but the laptop i tested it on here 
refused to provide the edid of the panel, and only provided an edid 
block when i attached an external monitor, which then return the 
standard VBE call failed error back too.

What does the tool in read-edid provide?

Luc Verhaegen.