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Use EDID data to set screen physical size at server startup.

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Screen physical size is set to a random value before the RandR code gets
control, override that and reset it to a value based on the compat_output
physical size (if available). If that output has no physical size, just use
96dpi as the default resolution and set the physical size as appropriate.
This commit is contained in:
Keith Packard 2007-03-05 23:36:00 -08:00
parent bcade98cca
commit 843077f23a
1 changed files with 22 additions and 2 deletions
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24
hw/xfree86/modes/xf86RandR12.c
View file

@ -422,8 +422,28 @@ xf86RandR12CreateScreenResources (ScreenPtr pScreen)
}
else
{
mmWidth = pScreen->mmWidth;
mmHeight = pScreen->mmHeight;
xf86OutputPtr output = config->output[config->compat_output];
xf86CrtcPtr crtc = output->crtc;
if (crtc && crtc->mode.HDisplay &&
output->mm_width && output->mm_height)
{
/*
* If the output has a mode and a declared size, use that
* to scale the screen size
*/
DisplayModePtr mode = &crtc->mode;
mmWidth = output->mm_width * width / mode->HDisplay;
mmHeight = output->mm_height * height / mode->VDisplay;
}
else
{
/*
* Otherwise, just set the screen to 96dpi
*/
mmWidth = width * 25.4 / 96;
mmHeight = height * 25.4 / 96;
}
}
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Setting screen physical size to %d x %d\n",