On Wed, 2003-06-11 at 21:47, Alex Deucher wrote: 
> I've had several reports of DRI not working after a screen resize using
> mergedfb code.  I haven't really had time to tackle it, and
> unfortunately, i'm not real familiar with how DRI interacts with a mode
> change or xrandr.

AFAIK it doesn't care about them at all yet (and it shouldn't need to
for the former at least).


> As background, mergedfb provides a single framebuffer with two
> viewports looking into it.  HW accelerated 3D works fine on both heads
> in the inital mode, however I've gotten reports from users that the DRI
> stops working when you change "metamodes" using ctrl-alt-+/-. 
> metamodes are just mode combinations that describe the mode on each
> head for mode changes (e.g., 1024x768-1024x768 1024x768-800x600, etc.).
> 
> More details about the problem are listed here:
> http://bugs.xfree86.org/cgi-bin/bugzilla/show_bug.cgi?id=276

Looks like the hanging ioctl is DRM_IOCTL_LOCK, maybe there's a DRILock()
with no corresponding DRIUnlock()?


-- 
Earthling Michel Dänzer   \  Debian (powerpc), XFree86 and DRI developer
Software libre enthusiast  \     http://svcs.affero.net/rm.php?r=daenzer



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