Re: Radeon HD 3470 dual monitors on Squeeze
On Sat, May 05, 2012 at 08:18:18AM -0500, Indulekha wrote:
> 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?
>
Yes, but it didn't work. The monitor actually gets no signal, so it
goes into power-save mode (whatever it's called). xrandr knows that I
have two outputs on my video card, but I can't get a display on one of
them.
Also, it does not seem to be monitor-specific or output-specific.
-Rob
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