Re: [gentoo-user] Changed monitor and even the BIOS screen doesn't show up.

Dale <rdalek1967@×××××.com> [10-12-14 06:04]:
> Dale wrote:
> >meino.cramer@×××.de wrote:
> >>Dale<rdalek1967@×××××.com>  [10-12-14 05:04]:
> >>>Hi,
> >>>
> >>>I am in the process of switching from the old rig to the new rig.
> >>>While doing the install I was using a Gateway EV700 monitor and it
> >>>worked fine.  I unhooked the cables from my old rig and moved in the
> >>>new rig.  The new monitor is a Gateway EV910.  When I boot with the
> >>>Gateway EV910 hooked up, it doesn't even come out of power saver
> >>>mode
> >>>or show the BIOS screen that pops up when I first turn the puter on.
> >>>It does work with the one I used to install with, EV700.  So, I know
> >>>the card didn't mess up in the switch.
> >>>
> >>>Since it doesn't even work with the BIOS screen, this is not a OS
> >>>issue.  Is there some setting I have to change to be able to change
> >>>monitors or am I just going nuts here?  What is it about hooking up
> >>>a
> >>>different monitor that makes it not work?   Both monitors support
> >>>the
> >>>same resolutions and I have switched these before with my old rig
> >>>and
> >>>not a single problem.
> >>>
> >>>What am I missing?  Some new feature that the video card remembers
> >>>what
> >>>monitor it is supposed to hook up to?
> >>>
> >>>Thoughts?  Fixes would be nice.
> >>>
> >>>Dale
> >>>
> >>>:-)  :-)
> >>>
> >>Hi Dale,
> >>
> >>just a shot in the dark (I did the same a few weeks ago):
> >>
> >>May the non-working monitor has more than one input jack, say
> >>HDMI, DVI and analog.
> >>
> >>May be the monitor is set to await  a signal at the HDMI input
> >>and physically the signal is feed into the DVI input ?
> >>
> >>HTH!
> >>
> >>Best regards,
> >>mcc
> >>
> >
> >This is a older monitor.  It only has the DB-15 connector and the
> >power cord of course.  This is funny tho.  I booted the new puter with
> >the EV700 monitor hooked up.  I logged into KDE and once it was
> >running, I cut off the power to the old monitor and unhooked the cable
> >from the puter.  I then hooked up the EV910 monitor and cut on its
> >power.  It works.  Thing is, if I reboot, it does the same thing
> >again.  No BIOS screen or anything.  Weird huh?
> >
> >I may cut everything off, remove the video card from the system and
> >see if there is a button or battery on it.  Maybe that will do
> >something, reset if nothing else.   For those keeping up, even the
> >BIOS screen doesn't show up so this is not Gentoo, grub or anything.
> >It's just weird.
> >
> >Open to other ideas tho.  This is the weirdest thing I have seen in a
> >while.
> >
> >Dale
> >
> >:-)  :-)
> >
>
> Update with some more info.  This may be a monitor setting or
> something.  I took the video card out and put in a different card, ATI
> actually.  It works with the EV700 but not the EV910.   No BIOS screen
> on the EV910 but works on the EV700.
>
> Another thing I noticed, when I switch displays after logging in, the
> EV910 is not as bright as usual.  I'm not sure how that would matter
> but thought I would mention it.
>
> Anybody ever seen this before?  If it was the OS then that would be one
> thing but not even the BIOS screen works.  I thought that would even if
> nothing else would.
>
> Thoughts?
>
> Dale
>
> :-)  :-)
>

Hi Dale,

I need a machine gun for all the shots in the dark...

May be a bad cable???
If the jack has an "sense pin" to indicate the presence of a
monitor to the graphics card and the cable to that pin (or the 
pin itself is broken...then the grpahics card thinks "No monitor, no need 
to generate a signal...).


The pin layout is here:
http://hep.fi.infn.it/CMS/power/old_site/Cables/50m/ctrl/A4602_DB15_pinout.jpg


HTH 
mcc