XRandR: Screen Rotation animation effect

Bipin George Mathew bipingm at gmail.com
Fri Feb 13 21:01:33 PST 2009

Yep, using a compositor would be an option. But like I mentioned  
before, we would require input redirection support on the xserver.

On 13-Feb-09, at 8:41 PM, Corbin Simpson <mostawesomedude at gmail.com>  

> Bipin George Mathew wrote:
>> Currently, when we use Xrandr to rotate the screen, the screen goes  
>> blank
>> for a second or two and then shows the screen in the new  
>> orientation. I was
>> exploring if it was possible to avoid the flicker and substitute it  
>> with a
>> relevant animated effect - Is this code change even do-able, given  
>> the way
>> xserver interfaces with the video drivers? Any pointers?
>> The alternative would be not to use XRandR at all, and let the window
>> manager do the effect - but this requires the Input redirection  
>> patches
>> (which has limitations)
> Going off the top of my head; I'm sure somebody will correct me.
> The flicker could be avoided if load detection were skipped, but I  
> think
> that discussion's already been had.
> An animation could be done by a compositor, but at that point the
> compositor (not xrandr) would be handling the rotation.
> ~ C.

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