Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: My AMD card is set as default, but windows doesnt detect my monitor

23 May 2013   #1
eold012

Windows 7 Professional x64
 
 
My AMD card is set as default, but windows doesnt detect my monitor

This is very frustrating.
I have a Radeon HD6450 on my desktop pc, and a monitor which is plugged into its VGA output. I installed windows 7, and it installed and ran fine, but it didnt have the ati drivers, so the resolution was low. I installed the windows updates, including the ati drivers. When I restarted, the windows loading screen displayed, but when it finished the screen went black. After a bit of research, I think the problem is that the radeon card is switching output to DVI:
Computer doesn't start up after Catalyst install... what's wrong? [Archive] - AnandTech Forums
Unfortunately, I dont have a DVI cable to test this, and I dont want to buy one if I dont need to.
To get into windows I need to go into the bios and set the onboard graphics to be the default graphics, and connect my monitor to the motherboards VGA output.
I can then connect a second monitor to the Radeon's VGA output, and windows detects it and all is dandy, except I have to use onboard graphics.
Does anyone know why my Radeon card is switching to DVI on startup? Catalyst control panel didnt seem to have any relevant settings..

Thanks!
Ethan


My System SpecsSystem Spec
.
23 May 2013   #2
Faladu

Windows 7 Ultimate Retail Box (64-bit installed) + Service Pack 1
 
 

What version of Catalyst are you running?

I'd go to your video card manufacturer's website and use the one they offer, instead.

I'd keep dropping back versions, if there is no website offerings, you can go version crazy here:

guru3d.com [site has been around a long time, no worries]

Follow the normal removal procedures for video card drivers.

I would check ASRock's web site for motherboard chipset driver updates also (Southbridge/Northbridge).

Having to use DVI sounds ridiculous to me.

Just extra:
Is your HD LED light staying bright during the bootups when screen goes BLACK?
Doubtful in your case, but that is a sign the hard drive needs defragged.
Other common time the video goes black like that is a RAM problem.
My System SpecsSystem Spec
23 May 2013   #3
eold012

Windows 7 Professional x64
 
 

Thanks for the quick reply!

I found the manufacturers website, sapphiretech.com
From there I tried Catalyst 13.4, 13.1, 12.8 and 12.6, but the problem remains.
Also, when using 12.6 and 12.8 with onboard graphics as primary, the catalyst control center wouldnt start, with a message saying "Catalyst control centre host application has stopped working".
Ill try more Catalyst versions later, as its getting late.
My System SpecsSystem Spec
.

23 May 2013   #4
Dude

Windows 10 Pro X64
 
 

eold12, also check if your bios has a multi-monitor enable setting. Sounds like it was set to one or the other not allowing both or conflicting.

Never mind, I don't think you can do that config
My System SpecsSystem Spec
23 May 2013   #5
Solarstarshines

Windows 10 Home Premium 64bit sp1
 
 

Quote   Quote: Originally Posted by eold012 View Post
This is very frustrating.
I have a Radeon HD6450 on my desktop pc, and a monitor which is plugged into its VGA output. I installed windows 7, and it installed and ran fine, but it didnt have the ati drivers, so the resolution was low. I installed the windows updates, including the ati drivers. When I restarted, the windows loading screen displayed, but when it finished the screen went black. After a bit of research, I think the problem is that the radeon card is switching output to DVI:
Computer doesn't start up after Catalyst install... what's wrong? [Archive] - AnandTech Forums
Unfortunately, I dont have a DVI cable to test this, and I dont want to buy one if I dont need to.
To get into windows I need to go into the bios and set the onboard graphics to be the default graphics, and connect my monitor to the motherboards VGA output.
I can then connect a second monitor to the Radeon's VGA output, and windows detects it and all is dandy, except I have to use onboard graphics.
Does anyone know why my Radeon card is switching to DVI on startup? Catalyst control panel didnt seem to have any relevant settings..

Thanks!
Ethan
Go into Bios into IGPU turn it off and make the GPU primary that is your issue you must turn off the onboard in Bios and let the main GPU take over it will give you this option on IGPU

There also should be a order of how you can change the way the GPU Is configured if you have a old board this may be the issue the screen shot is of a motherboard i have that has a IGPU and it shows that you can turn it on and off I suggest if you have this turn yours off and it should register the main GPU


Attached Images
 
My System SpecsSystem Spec
23 May 2013   #6
eold012

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by Solarstarshines View Post
Go into Bios into IGPU turn it off and make the GPU primary that is your issue you must turn off the onboard in Bios and let the main GPU take over it will give you this option on IGPU

There also should be a order of how you can change the way the GPU Is configured if you have a old board this may be the issue the screen shot is of a motherboard i have that has a IGPU and it shows that you can turn it on and off I suggest if you have this turn yours off and it should register the main GPU
Thanks, I set my onboard graphics to auto instead of enable, and now it works
Even though it worked fine on windows xp before.
Thanks everyone for your help!

Ethan
My System SpecsSystem Spec
Reply

 My AMD card is set as default, but windows doesnt detect my monitor




Thread Tools




Similar help and support threads
Thread Forum
Pc Doesnt detect Ethernet Cable
Like the title's says my doesnt detect the ethernet cable . the cable is not broken because i tested on my laptop worked normally i opened device manager and checked my network adapter tab and it says This device is working properly. i hate my wireless adapter as it is so shit . i want to...
Network & Sharing
graphics card doesnt detect monitor correctly
hi i have this big problem is that my graphics card as a problem that in almost 2 years it never did this i never had problems with this computer but what happend is that i use a LCD screen the resolution is use is 1768x992 and i use a Nvidia GeForce 9800 GT graphics card what happends is...
Graphic Cards
Windows doesnt detect Sound Card
hello guys, i need some about my computer.. recently, i've been re-format my computer and change XP to windows 7 home premium. then when i go to you*ube.com, it doesnt came up any sound. and go to Run>dxdiag>Sound and the windows doesnt detect my sound card !!! My audio device was Simbadda CST...
Sound & Audio
Windows Doesnt detect when I unplug my headphones
I've tried rolling back the driver, updating the driver, reinstalling the driver. I've looked at other threads for solutions with regards to the realtek audio manager with no luck there. Essentially, one day everything was fine, and the next, when i unplugged my headphones, there was no sound,...
Sound & Audio
WMC doesnt detect my music
it is all very well organized like so: C:\Music\Artist\Album\Artist - Year - Album - Track - Title.mp3 help?
Media Center
Windows 7 doesnt have Screensaver on by default?
Windows 7 doesnt have Screensaver on by default? It has the nice dimming feature but then doesnt set the screensaver on by default!!
General Discussion


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 07:46.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App