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: Random crash/freeze with dual monitors

01 Oct 2009   #1
Smiler

Win 7
 
 
Random crash/freeze with dual monitors

Whenever I move my mouse along the bottom of my primary screen to my secondary screen, there is a chance of the mouse cursor glitching out and looking weird. When that happens, I would say there is a 50/50 chance of the cursor then turning into a square and soon after that my monitors turn solid colors and my computer freezes.

I have already tried moving the taskbar away from the area, and the problem still persists. I am using a Radeon HD 4670 graphics card, but I tested it with XP and it works fine. I tried the 9.9 and 9.8 drivers for the card, but the glitch still happens.


My System SpecsSystem Spec
.

01 Oct 2009   #2
H2SO4

Win7x64
 
 

That sounds very hardware/driver-ish. Can you confirm whether it also happens if you go into "basevideo" mode?

BCDEDIT /SET VGA ON

You'll need to reboot at least once after running that command. (To go back to normal after you're done testing, use the same command with OFF on the end.)
My System SpecsSystem Spec
01 Oct 2009   #3
Smiler

Win 7
 
 

Do I just put that in the Start menu box? I tried that and nothing seems different after rebooting. I was still able to crash the computer as well.
My System SpecsSystem Spec
.


01 Oct 2009   #4
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by Smiler View Post
Do I just put that in the Start menu box? I tried that and nothing seems different after rebooting. I was still able to crash the computer as well.
Open an elevated CMD prompt (right-click, run as admin), and run the command that way.
My System SpecsSystem Spec
01 Oct 2009   #5
Smiler

Win 7
 
 

Okay, it worked this time, but I can't use my second monitor. Is there a way to turn it on in this mode? If there isn't, I can't test anything.
My System SpecsSystem Spec
01 Oct 2009   #6
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by Smiler View Post
Okay, it worked this time, but I can't use my second monitor. Is there a way to turn it on in this mode? If there isn't, I can't test anything.
If it worked in "basevideo", that strongly suggests a problem in your normal video driver. That's what we just tested - a different (low performance/high reliability) video driver that's built into the OS.

You shouldn't try to add more functionality to basevideo mode (it won't work anyway). Instead, I'd suggest focusing on finding a driver revision that works with your setup.
My System SpecsSystem Spec
01 Oct 2009   #7
Smiler

Win 7
 
 

No, I mean I booted into basevideo mode. That worked. I can't see if the problem is the driver or not since the crash happens when I move the mouse between monitors. I can't test it right now because I only have one monitor on.
My System SpecsSystem Spec
01 Oct 2009   #8
H2SO4

Win7x64
 
 

Quote   Quote: Originally Posted by Smiler View Post
No, I mean I booted into basevideo mode. That worked. I can't see if the problem is the driver or not since the crash happens when I move the mouse between monitors. I can't test it right now because I only have one monitor on.
Oh, right, gotcha. Still, it does prove that there aren't any no-go areas on your (primary) monitor with a different driver, so once again the card-specific driver becomes the main suspect.

Are you running any desktop "enhancers" perhaps? Ultramon, some type of 3rd-party desktop "extender", or anything like that?
My System SpecsSystem Spec
01 Oct 2009   #9
Smiler

Win 7
 
 

Actually, I was running Ultramon for a period of time. I turned it off to test whether it was causing the crash, but it did not happen for the few hours I had it off. This was before I found out what caused the crashes, though. I then switched to Displayfusion, but I never tested that.

I did try moving the taskbars to the top of the screen, but the mouse moving between screens at the bottom of the desktop still caused the crash. I'll switch back to the regular drivers and try causing the crash without Displayfusion on.
My System SpecsSystem Spec
01 Oct 2009   #10
Smiler

Win 7
 
 

But now I can't get my computer back to normal. I tried BCDEDIT /SET VGA OFF, but it doesn't seem to do anything. I still can't turn my second monitor back on.

Edit: Okay, so I did BCDEDIT /SET VGA ON OFF, and the resolution went back to the smallest setting. I still can't get everything back to normal though (Second monitor).
My System SpecsSystem Spec
Reply

 Random crash/freeze with dual monitors




Thread Tools





Similar help and support threads
Thread Forum
Is Nvidia dual monitors a poor cousin to Windows 7 dual monitors?..
Having just upgraded from XP using the Nvidia dual monitor desktops for years, I was surprised to find Windows 7 has this feature in-built with the added bonus of slideshow desktop images C00L! So beyond Win7 eye candy which is better, Does it come down to games running faster under the Nvidia...
Graphic Cards
Dual Monitors, random blacks sections of Desktop
I have a Elitebook docked on a dockingstation with two monitors connected to the docking station via one DVI and one VGA. Everything works fine, but randomly one of the monitors will either get a completely black desktop screen or partially black. Roughly 75% will be black. The computer runs...
Customization
Random freeze/crash/BSOD's Please Help
Hello all! This is my 1st post in the forums but it comes under bad circumstances. Ever since I installed Sims 3(and since removed) for my daughter on my PC it has been crashing a lot. Sometimes I'll go to the CPU and that little box saying "windows is recovering from an unexpected shutdown" ...
BSOD Help and Support
explorer.exe crash when I switch to dual monitors display
Hi, my explorer.exe crash when I change my display to dual monitors, both screens appears well, but my mouse cursor changes to the loading one (blue circle turns in row) and when I click anywhere in my desktop (both on screen one and two), explorer says a problem occured and I must close it... ...
BSOD Help and Support
Random Freeze, Crash, BSOD
Hi all. I've been having random BSOD's for some days now with my Windows 7 64-bit. Age of system (hardware): 1 year 9 months Age of OS installation : Fresh Reinstall Original installed OS on the system : Linux My pc: Motherboard Name MSI P43 Neo (MS-7519)
BSOD Help and Support
Random Freeze/Crash
Hello I'm currently having trouble with this random Freeze/Crash. I just find it happening when it feels like it. Usually when these freezes occur what comes to mind is scanning my computer for Spyware and updating windows. Sometimes it works and sometimes it doesn't. I still can't able to find...
BSOD Help and Support

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 14:53.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App