Archived from groups: comp.sys.ibm.pc.hardware.video (
More info?)
thanks,
however i was wondering if anyone has seen monitors returning 0x80 as
the first byte and all the rest 127 bytes as 0xff in the 128 bytes
EEDID data , when queried over DDC
regards
Taha
"Not Gimpy Anymore" <nospamREMOVplease@msn.net> wrote in message news:<hyk8d.487410$OB3.21514@bgtnsc05-news.ops.worldnet.att.net>...
> "M Taha Masood" <m.tahamasood@gmail.com> wrote in message
> news:a350f7d.0410041337.39d81f2a@posting.google.com...
> > hello,
> > i was curious about how common it is to have Monitors that return back
> > bad EDID information
> > also is it true that monitors with blue or black video connector cable
> > end point mean they support DDC/EDID?
> >
> > regards
> > Taha
>
> The blue colored connector is supposed to indicate VESA compliance.
> A black colored connector does NOT imply lack of compliance, nor does
> a blue one guarantee compliance. There is presently no official compliance
> policing method (nor is there likely to be one). So, the connector cover
> color
> it is not something you should count on. Also, over the years, the EDID
> standard has been revised, so you really need to read the entire file
> content,
> including the revision level, and interpret it according to that revision.
> It is not common for a monitor to return "bad" information, but it is
> entirely
> possible that the information returned may not accurately represent the full
> capability of the monitor. You should depend on the monitor specification
> more than the EDID content, especially in older units, to understand the
> monitor's capabilities. The whole intention of EDID is to facilitate
> Plug-n-Play
> connectivity that will use as much of the monitors capabilities as possible.
> But
> not all graphics systems nor operating systems use the information
> effectively,
> especially when it comes to non-standard pixel formats and/or refresh rates.