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Re: Radeon HD 3470 dual monitors on Squeeze



On Sat, May 05, 2012 at 09:05:35AM -0400, Rob Owens wrote:
> I've been trying to get dual monitors to work on my Squeeze system.
> Originally I was using both the onboard video and an additional video
> card.  Now I have two monitors hooked up to the same video card (thanks
> to a cheap craigslist purchase).
> 
> When I begin booting, both monitors give me a display.  But when the
> boot process gets to the point where text display changes (framebuffer
> turning on?) one monitor goes blank and I cannot get it working again,
> even when logged into a GUI.
> 
> Both monitors work properly with Knoppix 6.4.4.  I tried using the
> Knoppix xorg.conf, but that did not work.  Here are some differences
> between Squeeze and Knoppix:
> 
> 				Squeeze		Knoppix
> kernel:				2.6.32-5	2.6.37
> xserver-xorg-video-radeon:	1:6.13.1-2	1:6.13.2-1
> libdrm-radeon1:			2.4.23-0.0	2.4.23-1
> radeontool:			none		1.6.1-1
> 
> I don't know if the above differences are important or not.  
> 
> Any ideas why one monitor always goes blank in Squeeze?
> 
> -Rob
> 
> 
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> 

Have you tried xrandr?

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 Indulekha 


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