Only get 1 of my 2 monitors when Win7 boots

captnorm said:

I'm not sure this is the best place to post, but will try here.

I've been using dual monitors for a long time w/XP & for a few months Win7 Pro. All of a sudden, when I re-boot (or cold boot) Win7, I get the bios tag lines & the Microsoft screen with the moving bars on both monitors. Then get the desktop on my primary monitor and "no signal" message on the secondary monitor, & it stays black. If I bring up "adjust resolution" and "detect", both monitors get my desktop. "Multiple Displays" is set to "extend these displays".

Has anyone else seen this, or does anyone have any idea on how to get both monitors the way they used to be? If I boot XP (have dual boot), both monitors behave as they should. Btw, I'm running an ATI Radeon HD 2600 Pro vid card.

Thanks,

Norm

mpcrsc562 said:

same thing here, but i never knew it was a "problem." it happened to me as well when i ran vista. i never had a dual screen setup when i ran xp so i can't speak of xp. i though that was the way it was... as soon as i logon, both screens come up no problem. (ati set up here too)

i'm not trying to diminish your problem, but is it really a problem? as i stated with my setup (not in exacting detail, but here goes): when i first boot, i get the post screen on both monitors. during boot up and showing the "windows is starting" screen, i receive a signal to both monitors. when the logon screen shows, i only have a signal on the primary monitor. when i logon, both screens have a signal. i'm running a 64-bit version of 7, with two ati radeon hd4870s in crossfirex. the way my computer starts now, is the same way it started in vista. i never had a dual monitor config running xp, so i don't know how to speak on that. so my question is: is dual screen working fine when windows is running, and if so, is it really a "problem" that there is only one screen showing a picture on the logon screen? my best GUESS is that that it has something to do with how the ati drivers interact with windows, but that is only a guess.

i apologize...
i thought your statement was that you had only one signal at the LOGON screen--only after re-reading just now did i see that you get no signal when you get to the desktop. again, my apologies.

i'd say, first, check marktherob2010s post. second, i'll get back...