[Openicc] VMs and display correcotions

Stefan Döhla color at doehla.de
Wed Mar 9 03:58:33 PST 2011


Am 09.03.2011 13:33, schrieb Kai-Uwe Behrmann:
> Am 09.03.11, 11:11 -0000 schrieb Richard Hughes:
>> On 9 March 2011 11:45, Kai-Uwe Behrmann <ku.b at gmx.de> wrote:
>>> To what extend shall a host generate EDIDs? display size, extensions,
>>> colorimetry ...?
>>
>> The host already generates a virtual EDID for most VMs. At the moment,
>> I'm pretty sure all the fields are hardcoded, but it might sense to
>> mirror some values from the active output that the VM is being
>> displayed on.
>
> Ah. In case the host EDID's colorimetry gets passed to the host EDID's 
> colorimetry, than it should as well be ensured that the VM window is 
> itself not colour managed by the host or set the guest EDID back to sRGB.

If LUT changes happened, the display's EDID is no more valid. Hence, a 
new one would have to be generated by the VM - or the same profile be 
simply used within the VM (knowing that it's currently not possible to 
do LUT changes there again) ...

- Stefan


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