[PLUG] External monitor remains black

[Matt McKenzie]

Hello,

Following this thread, something occurs to me, and sorry if this has been
discussed already.
Is it possible the video out on the laptop is not functioning properly?  As
in it doesn't actually output a good video signal, even though the monitor
senses there is something there (doesn't show "no signal" anymore)?

It sounds like you have tested a few different OS'es with a few different
monitors.
It is still possible of course it is just a nouveau issue.

I would suggest trying a few more different live CDs.  Have you tried
Knoppix with the same monitor(s)?
You may also want to try a live bootable CD of that "other" OS, something
along the lines of BartPE [1]
(bootable live Windows CD for repairs and such).

[1] http://www.nu2.nu/pebuilder/

----------
Matt M.
LinuxKnight


On Sun, Nov 28, 2010 at 10:41 PM, John Jason Jordan <johnxj at comcast.net>wrote:

> On Sun, 28 Nov 2010 10:22:05 -0800
> John Jason Jordan <johnxj at comcast.net> dijo:
>
> >On Sun, 28 Nov 2010 10:08:00 -0800
> >John Jason Jordan <johnxj at comcast.net> dijo:
> >
> >>At this point I'm wondering if it's a bug in the nouveau driver.
> >
> >While looking at the nouveau site I found a troubleshooting page:
> >
> >http://nouveau.freedesktop.org/wiki/TroubleShooting
> >
> >I'm going to run through the suggestions, especially the parts about
> >other drivers interfering. I did have the nVidia proprietary driver
> >installed at one point.
>
> After several hours of trying I have failed to get the nouveau driver
> to light up the external Viewsonic monitor. I did all the
> troubleshooting things on the nouveau page, but nothing helped.
>
> I booted to an Ubuntu 10.10 live CD and to a Fedora 14 live CD as well.
> Both were able to see the external monitor, but neither could get it to
> display anything. They act the same as my installed Fedora 14.
>
> I have another monitor that my desktop is normally connected to
> (Samsung). The nouveau driver sees it as well, but still can't get it to
> display anything. If I connect the Viewsonic to the desktop computer it
> works fine. So we know the cables and monitors are good.
>
> I searched the nouveau bugs on bugzilla and found only one bug that was
> close to the same. It was from last spring and was never resolved.
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