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xsrc/45533: DGA with "Radeon 9200PRO 5960" crashes or locks base-X11 (XOrg)

>Number:         45533
>Category:       xsrc
>Synopsis:       DGA with "Radeon 9200PRO 5960" crashes or freezes base-X11 
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    xsrc-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 28 03:05:04 +0000 2011
>Originator:     Matthew Mondor
>Release:        NetBSD 5.1_STABLE
System: NetBSD behemoth.xisop 5.1_STABLE NetBSD 5.1_STABLE (GENERIC_MM) #0:=
 Mon Aug 1 12:19:58 EDT 2011 root@behemoth.xisop:/usr/obj/sys/arch/i386/com=
pile/GENERIC_MM i386
Architecture: i386 Machine: i386

If I try the dga(1) utility, it appears to enter it but then there is
no way to exit (and it will stop updating colors very soon).

If I tell SDL to use the DGA driver by exporting the VIDEO_DRIVER
environment variable to dga, starting an SDL-using program will crash
X11, returning me back to console.

Currently, DRI is disabled, as I had issues with it at full HD
resolution with my card, if I remember, but I doubt that DGA requires
DRI to work.  XVideo works fine.  xdpyinfo(1) does show XFree86-DGA

=46rom some searches, it seems that other people on other operating
systems also had trouble with DGA on some Radeons, so it's probably not



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