Freebsd 8.1 + xorg + radeonhd hang

[Warren Block]

On Tue, 14 Sep 2010, Eivind E wrote:
>

First, the intermittent nature of the problem sounds like it might be 
hardware failure.  The only easy way to test that would be to swap in 
another video board, but people rarely have extras.

You also mentioned upgrading from 7.x to 8.1.  It's worth running 
pkg_libchk from sysutils/bsdadminscripts to make sure nothing was 
missed.

Back to the xorg.conf...

Adding Option "Log" "Sync" to ServerLayout may help preserve the 
Xorg.0.log file.  Untested by me so far, but shouldn't hurt.

> I'll repost the xorg.conf here
>
> Section "ServerLayout"
> 	Identifier     "Layout0"
> 	Screen      0  "Screen0" 0 0
> 	InputDevice    "Tastatur" "CoreKeyboard"
> 	InputDevice    "Mus" "CorePointer"
> 	Option	"AllowEmptyInput" "off"
> EndSection

AllowEmptyInput (and fire) bad!  Use AutoAddDevices Off instead.
(http://www.wonkity.com/~wblock/docs/html/aei.html)

> Section "Files"
> EndSection

Looks wrong, but works here.  I'd suggest leaving out the section 
entirely rather than leaving it empty, though.

> Section "Module"
> 	# Load "freetype"
> 	# Load "xtt"
> 	Load  "extmod"
> 	Load  "glx"
> 	Load  "dri"
> 	Load  "dbe"
> 	Load  "record"
> 	Load  "xtrap"
> 	Load  "type1"
> 	Load  "speedo"
> EndSection

All but the commented first two and last three are default.  Worth 
commenting out the last three and testing, too.

> Section "Monitor"
> 	Identifier   "Skjerm"
> 	HorizSync    31.5 - 48.5
> 	VertRefresh  50.0 - 70.0
> EndSection
>
> Section "Device"
> 	Identifier  "Grafikkort"
> 	Driver      "radeonhd"
> 	Option	"HPD" "off"
> EndSection

My success rate with the radeonhd driver is pretty much nonexistent.

> Section "Screen"
> 	Identifier "Screen0"
> 	Device     "Grafikkort"
> 	Monitor    "Skjerm"
> 	DefaultDepth     16
> 	SubSection "Display"
> 		Depth     16
> 		Modes    "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
> 	EndSubSection
> EndSection

16-bit?  That may actually be slower than 24, depending on how the card 
is built.  Should still work, though it's worth commenting out in both 
places for testing.

> Section "DRI"
> 	Mode 0666
> EndSection

Should not cause a problem, although I use 0660.

My full xorg.conf for the X1650 is here:
http://wonkity.com/~wblock/radeon/x1650/xorg.conf