Re: [pygame] Display set_mode FULLSCREEN hang

hi,

ah. VideoCapture uses directx to do its thing... and as you are on XP, it is likely choosing directx video driver. So that's probably why the two are mixing weirdly.

thanks for reporting back with what you found out.

I'm not sure if you can select a refresh rate (yet).
From the SDL release notes... "The default fullscreen refresh rate has been increased to match the desktop refresh rate, when using equivalent resolutions. A full API for querying and selecting refresh rates is planned for SDL 1.3"

Of course, if you want to go and implement it yourself... you could always patch SDL to do your bidding.

However... with LCD screens, the like the native resolution... so you could choose the desktop resolution and use pygame.transform.scale to draw. That should give you the refresh rate you want. So that is one possible work-around.

cu,

On Mon, May 11, 2009 at 2:48 PM, Adam Li <adamli@xxxxxxxxxxxxxx> wrote:

It seems that the pygame initialization has to be before the VideoCapture initialization. If the VideoCapture camera is created first, the pygame.display.set_mode((0,0), pgame.FULLSCREEN) will hang.

By the way, how can I specify the refresh rate of the display? For me, pygame selects a 70Hz refresh frequency, but I prefers 60Hz.

Thanks,

Adam

René Dudfield wrote:

ah ok.

It would be good to know the failing order... so other people can work around it... or maybe we can fix it.

cu,

On Mon, May 11, 2009 at 11:25 AM, Adam Li <adamli@xxxxxxxxxxxxxx <mailto:adamli@xxxxxxxxxxxxxx>> wrote:

Hi Rene,

Thanks for your reply. The little Atom board (it is a custom-built
board) is running standard Windows XP.

pygame.display.list_modes() returns:

[(1280, 1024), (1280, 1024), (1280, 960), (1280, 768), (1280,
720), (1152, 864), (1024, 768), (960, 540), (800, 600), (800,
480), (720, 480), (640, 480)]

The LCD is 1280x1024. I have tried to call set_mode with (0, 0),
(1280, 1024), and (640, 480) and all getting the same problem.

On a plus note, after a lot of tried this afternoon, I was able to
get it to work by shuffling the order of the initialization code
between pygame and other modules I am loading. So maybe the
problem is with the conflicting access to resources, or something.

I am using pygame, PIL, and a webcam module called VideoCapture.
Hope it helps.

Thanks,

Adam

René Dudfield wrote:

hi,

definitely sounds like a bug... but most likely in the X.

Have you used list_modes first?
http://www.pygame.org/docs/ref/display.html#pygame.display.list_modes

What does your little computer say are available?

cu,

On Mon, May 11, 2009 at 8:47 AM, Adam Li
<adamli@xxxxxxxxxxxxxx <mailto:adamli@xxxxxxxxxxxxxx>
<mailto:adamli@xxxxxxxxxxxxxx <mailto:adamli@xxxxxxxxxxxxxx>>>

wrote:

Hi there,

Just wrote small code to test different screen mode. It
works well
on my desktop, but when I moved it to an Atom-based computer,
there is a problem.

The code appears to hang when I set_mode with FULLSCREEN.
Again,
the same code works without problem on my desktop, but not
on this
small Atom-based computer. Other modes works fine on both
computers as well, as long as I don't set the FULLSCREEN flag.

The display adapter is "Intel US15 Embedded Graphics Chipset
Function 0".

Any idea? Could it be a bug?

Thanks,

Adam