Dual Monitor - Composite

[adamk]

Your GPU has a maximum 3D texture size of 2048 pixels. You can't exceed that and still have 3D acceleration work properly across both monitors.

 

[joag]

Your GPU has a maximum 3D texture size of 2048 pixels. You can't exceed that and still have 3D acceleration work properly across both monitors.

You are a monster , my main complain was that I couldn't have transparent Terminals so after following the the link in my prev post (https://wiki.ubuntu.com/MaverickMeerkat/ReleaseNotes) and disabling hardware checking I was able to have konsole with translucent effects but look at the right of the screen, from my site http://www.nixheiser.info/export/ and the file is nep.png, that's where your brilliant point came to the real final solution; I need a better card.

Thanks again adamk, I hope now this can really help other people with this chipsets.

The final file after some of your suggestions looks like this:

Section "Monitor"
	DisplaySize  417   267	# mm
	Identifier   "VGA-0"
	VendorName   "AOC"
	ModelName    "913FW"
	Option	     "DPMS"
EndSection

Section "Monitor"
	DisplaySize  410   256	# mm
	Identifier   "DVI-0"
	VendorName   "ENVISION"
	ModelName    "G19LWK"
	Option	     "RightOf" "VGA-0"
	Option	     "DPMS"
EndSection

Section "Device"
	Identifier  "X300SE"
	Driver      "radeon"
	BusID       "PCI:1:0:0"
	VendorName  "ATI Technologies Inc"
	BoardName   "RV370 5B60 [Radeon X300 (PCIE)]"
EndSection

Section "Screen"
	Identifier "Default Screen"
	Device     "X300SE"
	Option     "AddARGBGLXVisuals" "True"
	SubSection "Display"
		Viewport 0 0
                Depth    24
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier     "ATI Dual Monitor"
	Screen         "Default Screen"
	Option	       "AIGLX" "On"
EndSection

Section "Extensions"
Option         "Composite" "Enable"
EndSection

 

[adamk]

compiz 0.9.* (a development version that is not in ports and, as far as I know, has not been successfully built/run on FreeBSD) actually works around that problem by offering not to use GLX_EXT_texture_from_pixmap, but a slower texture copy path. Till that works on FreeBSD yeah, you are pretty much out of luck getting resolutions higher than 2048 working with 3D compositing on that GPU.