Re: [PATCH v4] drm/omap: plane zpos/zorder management improvements

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On 08/01/18 13:07, Laurent Pinchart wrote:

>> Yes, this is a subject I have complained a few times: DRM keeping the
>> state. I think that will be a problem with many other properties too. An
>> app could change a platform specific property, which no other app is
>> aware of, and after that no other app would work correctly.
>>
>> I believe each app has to know all the DRM properties and set them
>> accordingly on startup, and/or each app has to reset the properties when
>> exiting. Unfortunately I think both cases are not realistic.
> 
> I agree with you. I'd prefer restoring a sane default state on last close. Is 
> there any reason not to do so ?

I have to say I can't remember, but it probably was about fbdev, legacy,
on PCs you don't usually encounter problems related to this, or things
like that.

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