Monitor not Recognized after Windows Update

[jimbeis462]

Hi guys,

I got this problem probably 3 days ago, I woke up one morning and saw that my computer had restarted itself from a Windows Update.

I turned my monitors on, and it only seemed as if one was plugged in, (the Samsung on the right).

So I checked connections, had a look in screen resolution settings and CCC, and neither could detect my ASUS on the left.

After more screwing around, I unplugged both monitors, and then just plugged in the ASUS using its own cable and port that it always uses, and the screen came on.
So to me, this rules out cable and GFX card problems?

I now see in CCC that the ASUS is an Unknown monitor, it ALWAYS used to say ASUS.

Now when I plug in my Samsung, the ASUS turns off and the image moves over to the Samsung.

For the ASUS I use a DVI to HDMI cable (HDMI end at GFX card)
and the the Samsung uses a regular DVI cable.

Thanks guys

Forgot to add; I also tried graphics driver rollback, uninstall Windows Update and then downloaded latest AMD graphics drivers, none of which seemed to help at all.

 

[Dude]

jimbeis462, try a system Restore

 

[jimbeis462]

hi thanks for reply, in my system restore menu, the only restore point I can choose is labelled as todays date, 29-4-2013,
should I try this anyway?

 

[Dude]

Don't that will work since it is after the problem. Try this click start/devices and printers, right click the monitor and click troubleshoot.

 

[jimbeis462]

hi, I have a couple of screenshots for you:


This is with ASUS plugged in:

This is with Samsung plugged in:

So as you can see, I can't right click it :/

I also tried to right click it in CCC, but its not possible to do much from that program...

cheers

 

[Dude]

does it show in device manager with a bang?

 

[jimbeis462]

nope

 

[Dude]

what is the model number of your vid card? And what ports are you hooking the monitors into?

 

[jimbeis462]

Graphics Card AMD Radeon HD 6700

HDMI port: HDMI-to-DVI cable to ASUS
DVI port: DVI cable to Sammy

It doesnt matter which ports or cable I use though, same thing happens

 

[Dude]

okay lets try this. hook one of the monitors to the onboard video. You will have to go in your bios and enable multimonitor and you IGPU.

Here is a link to your manual to view the BIOS settings


Download

 

[jimbeis462]

ok i did that, when the samsung was plugged into the onboard, it worked fine, but when i plugged in the asus and restarted, the resolution was very low, then after i logged on, the screen went into standby mode, so then i just reset all the bios settings and here i am!

 

[Dude]

Does it now show the asus in device manager? Did you change the bios settings back and disable the IGPU?

 

[jimbeis462]

no, it didn't show up, and yeah i put the settings back the way they were in bios

 

[Dude]

try using a vga or another dvi cable to it and see if that works.

 

[jimbeis462]

still the same problem

 

[Dude]

ok i did that, when the samsung was plugged into the onboard, it worked fine, but when i plugged in the asus and restarted, the resolution was very low, then after i logged on, the screen went into standby mode, so then i just reset all the bios settings and here i am!

Try the steps mentioned here, resetting your card, booting in safe mode.

Then let's try going back to this point (BOLD in above quote). Don't reset the bios and see if the asus shows up in device manager.

 

[Dude]

hi thanks for reply, in my system restore menu, the only restore point I can choose is labelled as todays date, 29-4-2013,
should I try this anyway?

Had to ask, did you click show more restore points


And also lets try uninstalling CCC and see how windows handles it.

 

[Faladu]

So if you have both connected and right click the desktop of the one that appears, and take Screen Resolution, they are not both showing up as 1 & 2 in some fashion, then you just have to go to the last item and make it extended desktop?

You have reinstalled Catalyst 13.1 also, right?



I have one DVI, one HDMI (used as main desktop) and there have been some quirks, but it's rare and just a matter of having the HDMI one on when I boot up for sure, not after.

 

[carwiz]

Might not help but worth a try: I have an Asus display that will occasionally loose track of what connector is in use. It will come up saying HDMI NO Signal when in fact I have a DVI cable connected. It's happened about three times over the last couple of years. When it happens, I turn it off and unplug the power cord for a minute or so. After that, it works fine. Just turning it off never worked--It has to have the power cord unplugged. (PC powered down.)

 

[jimbeis462]

well you wouldn't believe it, but carwiz wins!

Cheers for the help all