🚀 go-pugleaf

On a sunny day (Thu, 15 Mar 2012 09:00:52 GMT) it happened nico@puntnl.niks
(Nico Coesel) wrote in <4f61af65.197889641@news.kpn.nl>:

>Jan Panteltje <pNaonStpealmtje@yahoo.com> wrote:
>
>>On a sunny day (Thu, 15 Mar 2012 13:57:24 +1100) it happened Chris Baird
>><abuse@brushtail.apana.org.au> wrote in
>><ufipi6bmgb.fsf@brushtail.apana.org.au>:
>>
>>> > Why is X limited to a fixed frame-rate, though?
>>>
>>>It isn't. "Someone is Wrong on the Internet."
>>>
>>> > It seems like having an API to deal with an adjustable frame-rate
>>> > would be a pretty straightforward addition?
>>>
>>>Most desktops today have disabled the "Ctrl-Alt-plus" binding
>>>for changing screen mode on the fly, but you can put it back in,
>>>and software that uses SDL often changes screen mode to what
>>>it wants.
>>
>>You not even understand the problem.
>>I have one system here with more modelines then you have ever seen
>>in XF86Config, and yes you can change between them with ctrl alt +/-
>>That is not the point, and not even that not every monitor will like that,
>>The point is locking the frame rate of the X server to the video played.
>>I gave a good link that explains it, try reading it,
>>The other point is that people happily play 50 Hz video on a 60 Hz
>>display these days, and then dare call that configuration a 'media player'.
>>lack of real knowledge about video.
>
>If you have a TFT screen then the controller inside the TFT screen
>will convert the incoming frame rate to the frame rate native to the
>TFT panel. You are jumping through hoops for nothing.

That depends on the type of TFT monitor.
And actually also on the type of screen.
And there is the start of it all, 'that 'controller' you talk about.
Still the X server frame refresh is not normally locked to the frame
change, only, as I pointed out if special measures are taken.
On top of that, if you have a LCD teevee with VGA input then
50 Hz is NOT a VGA standard, adding even more problems.
So then there are the guys running a 60 Hz display, probably
most of the peesees, and feeding that with HDMI into the latest LCD TV,
and then play a 50 Hz movie on it.
I have tried all that to see what happens, and it is shit.
I had, as referring to 'controller' a litte few inch 12 V composite in
monitor.
It did 50 Hz no problem, as it would just PAL decode and refresh the
LCD at that rate,
Those  TFTs are simple analog in RGB and you can control the scanning.
Nothing was 'converted'.
The big LCD TVs and monitors do indeed conversion, are basically a frame store,
but even those have to flip in a new frame in sync, else you get a tared picture,
 
It is amazing how little people really know about video these days,
And then do not even get me started on interlace.