Windows 7 Cannot Detect Primary Monitor Trying Both Screen Resolution Detection / Missing From Devices Menu
Jun 20, 2012
I recently updated my nVidia drivers to the latest and also my SiSandra Lite software (for quick access to accurate specs of my PC). After updating SiSandra Lite, I looked at the GPU section. As usual it loaded the primary monitor first where everything was fine. I then changed to look at my secondary and my primary monitor turned off and my desktop was shifted to my second.Now when I boot my computer, my primary comes on, but after the pre and post bios. Only when Grub comes on does something appear on my primary monitor, but it's very low resolution (compared to what it used to be). The windows 7 loading bar appears on my primary but before the logo can appear and glow, it swaps to my secondary monitor where it stays.
Windows 7 cannot detect my primary monitor trying both screen resolution detection and it's missing from the devices menu. Really confused about this whole business.I realise this may have been posted as a problem before. I did find little snippets of information about it but nothing sufficient.
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Mar 6, 2009
I'm using a Sager 3790 notebook with 2 GB of memory, a Centrino 1.7 Ghz and a Mobility Radeon 9700.Installation went perfectly. The card was detected by Windows Update and drivers were isntalled for it. They're from December 2008. Okay, that's fine and dandy.As soon as the drivers install the highest resolution available on the primary display is 640x480. Why? Because Windows won't/can't detect my primary monitor. It shows up as an "Unknown display device."I can attach an external monitor and adjust its resolution all day. I can also remote into the laptop and that works fine.I am nearly 100% confident that I cannot change the display resolution because the monitor won't detect correctly. I can't manually force an install of a monitor or change the "Unknown display device" driver because that section is grayed out in the "Advanced Settings" under the Display Resolution tab.
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Mar 8, 2012
Of course, it is easy to get a print screen of my primary monitor, but how do I get one on my secondary? Simply clicking on it's background doesn't work.
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Dec 14, 2011
i've finally got the system up and running.lm using the same gfx card as l used to the Radeon 4650 HD after installing the cards drivers it seems to cause issues where the monitor gives me an "unsupported" resolution error when on my previous setup said card had no trouble going to 1350*768 (cant seem to go above 1024*768 without having to roll back drivers)
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Sep 14, 2009
Every time I try to run a program (fullscreen) with lower resolution than the monitor (1920x1080) it gives screen waiting ... and only comes out if I press alt tab ... how do I fix this? I called the tech support .. and said that it has seven windows drive yet .. anyone know what do I get?
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Nov 8, 2008
I installed 7 with two monitors hooked up and turned on and it detected both of them just fine. But after the install when I boot to windows if both monitors aren't "on" when I boot it won't detect the second monitor when I turn it on. I have to boot with both monitors on for it to detect both of them.
I just want to see if anyone else has experienced this same problem?
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Nov 23, 2010
i have connected my monitors via displayport to my computer. displayport is very nice, but it has one feature that is - in combination with windows vista/7 - very bad. displayport specification says that if a device (Monitor) will be turned off (standby) it will not be visible to the computer anymore. that is very annoying because windows has a routine which permanently checks if all monitors are still connected. if one monitor will be physicly disconnected, then windows will reorganize the desktop (all content that was on the disconnected screen will be moved to the others). if the monitor will be turned on again windows will move the windows back to the place where it has been before, but often it does not work correctly.
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Nov 2, 2012
I recently got a copy of Warhammer Dawn of War II. The game seems to be consulting" dxdiag.exe when I adjust the graphics detail of the game.Here is the problem, dxdiag when launched insists on displaying my secondary Intel GPU. My laptop has switchable graphics, but even if I force the usage of the primary Nvidia GPU (GT540M) through the Nvidia control panel it still detects the Intel one.
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Oct 21, 2010
I recently had an older HP Pavilion Media Center m7760n Desktop PC rebuilt. The old power supply fried the motherboard so I need to get a new power supply and motherboard. Here are my current specs.
Mainboard : Asus P5QPL-VM EPU
Chipset : Intel G41
Processor : Intel Core 2 Duo E6420 @ 2133 MHz
Physical Memory : 2048 MB (2 x 1024 DDR2-SDRAM )
Video Card : Intel(R) G41 Express Chipset (Microsoft Corporation - WDDM 1.1)
Hard Disk : WDC (1000 GB)
[code]....
As you can see from above, the "video card" is actually integrated into the motherboard.The computer works perfectly except for one major problem. I have 2 monitors, one is 22" with 1680 x 1050 resolution and the other is a 15" monitor with 1024 x 768 resolution. At the back of my computer I have a VGA port and a DVI port. The 15" is connected to the VGA port and the 22" is connected to the DVI port.When first starting the computer, the 15" monitor was recognized as the primary monitor while the 22" was recognized as the secondary monitor. No problem. I simply went to the display settings and set the 22" to be the primary monitor and the 15" to be the secondary monitor. Unfortunately, this setting seems to reset as soon as I reboot the computer. The 15" is always set as the primary monitor on start up, forcing me to set the proper settings all over again. What's worse is that even after I have set the proper settings, they sometimes revert back when using Media Center or other programs. Worse yet, sometimes the monitors both go completely black ... as if the monitor settings were about to switch but got locked up some how.I'm assuming that perhaps the on board video has a primary port (VGA) and a secondary port (DVI) but even still, shouldn't Windows 7 be able to over-ride this and save these settings so that the monitor settings remain the same during startup and regular usage?
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Nov 30, 2011
I have an Iogear bluetooth dongle that until a couple of weeks ago was working fine. I use it to connect to a bluetooth keyboard. I went on a trip and took the keyboard with me, where I paired it with my iPad. When I came back, the bluetooth could no longer find the keyboard, or any other bluetooth device for that matter.I've gone through all of the usual troubleshooting steps, including making sure it is set to run automatically, making sure the device drivers are updated, removing and reinstalling the device drivers, making sure the bluetooth settings are correct as far as set to find devices etc. with no luck.It does appear to be working as far as the device goes. There is a blue light on the dongle that blinks when I click to find a bluetooth device. When I put the bluetooth on the computer into discover mode, my phone is able to find the bluetooth radio, but it cannot connect with it. All of this, and the fact that it worked fine before, leads me to believe it may be a problem with my computer. I ran antivirus software, and although it found a couple of malware programs, nothing changed.
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Jul 2, 2012
When I plug in or unplug my external display to my laptop, my display options no longer automatically reconfigure as they used to do. Now if I unplug the monitor, Windows acts as if it's still there, and windows that were on the monitor stay offscreen (as does the cursor, if that's where it was). I can manually move the cursor back, right-click load graphics properties and make changes OR do an F-key combo to move everything back on the laptop screen OR program a hotkey but these are all pretty annoying for one reason or another. Unfortunately this must have started happening sometime in the last two weeks--at the same time as I made a load of major computer changes.
However this did NOT include a graphics driver change (my graphics driver is current). At this point I feel it could be anything, but I'm wondering if it could be a recent BIOS update I did that HP recommended. By way of troubleshooting I did run Windows in safe mode with ONLY the "ATI Catalyst" and "AMD External Events utility" running on top of the basic services, in case a newly installed service was stealing hotplugging messages, but that didn't do anything. I've also gone exhaustively through my graphics driver settings to make sure everything there looks correct.
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Oct 17, 2011
I run a dual monitor setup, and I use two user profiles and switch between them throughout the day. I set up both user profiles identically, which is as: In each profile, I run multiple instances of Internet Explorer 9, so I have four or five Internet Explorer windows open with multiple tabs open within each window. I keep two IE9 windows open on my left monitor, and three open on my right monitor. I also have MS Word and MS Excel open on my left monitor, and two notepads open on my right.
When I click on Start and switch user accounts, if I go back into my first user account, my windows will have either moved off screen somewhere, or they will have moved to the first monitor. The behavior is inconsistent in which windows are shifted around, but the windows end up moving none the less, and it ruins my work flow. I spend all my time setting up the windows back to their 'correct' positions.
Switching users to the 2nd user account will cause the same consequences with the windows set up on the 2nd account, thus defeating the purpose of utilizing multiple profiles to make work more efficient. I recently switched to Windows 7 on a new computer. My "old faithful" has Vista 64 does not exhibit the window shifting issue.
I am running a new 2nd gen sandybridge system, with an asus h67 motherboard and an i7-2600. I have 16 gigs of ddr3, and Win 7 64 Home Premium. I have an ATI Radeon HD 6570 running both monitors, with the latest video drivers installed. I've encountered this issue with and without ATI Catalyst suite installed and with/without Ultramon installed.
I don't want to revert back to Vista 64 just because it will be a lot of downtime to install and transfer my profiles again on the new machine, and I'd like to stay on the most current OS regardless, but I may have to switch back to Vista if this is a known issue on 7. We use dual monitor Windows 7 setups at the company I work for (my day job), and Ive verified 3 of my coworkers also have this issue. I also replicated this issue myself on one of the work Win 7 comps.
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Feb 8, 2011
I have two Windows 7 computers, my Desktop, and my Laptop. I also have UPnP capable router, Xbox 360, and networked printer.
Everything used to work fine, but I just noticed the UPnP on my desktop seems broken. I changed my motherboard and CPU about a month ago on it, so I think that may have something to do with it.
My laptop is able to detect all devices fine, but my desktop can only detect my laptop. My laptop can stream music from my desktop, but no other devices can. I have tried completely turning off the firewall, so it isn't that. My desktop can see my Xbox in the network map, but doesn't list it in "Network"
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Feb 19, 2013
My USB 3.0 ports aren't working. I have 2 USB 3.0 front ports that are hooked up to the motherboard and 2 addition USB 3.0 ports back ports pre-installed on the motherboard. None of the four can detect my USB 2.0 devices. The USB 2.0 ports works fine.
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Jun 15, 2011
I start Windows after the machine being off for a while, maybe a day or two, the primary monitor setting changes to my secondary display. As I do actually have two monitors on the video desk, it is fairly easy (for me) to change the setting to what it needs to be. But I am not the only operator that uses this computer, and most of the volunteers know little when it comes to computers of any kind.
Now you would think that someone with my technical background would have been able to fix this issue, and I can...using a 3rd party solution that costs money.
edit: to clarify, I have been having this issue for few years, but I have been the only person using the system. And this was happening on previous systems as well
Specs of the system in question:
Custom Built Desktop;
Windows 7 Professional x64;
[Code].....
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Nov 2, 2011
I just finished upgrading my CPU, ram, and mobo, and everything went off without a hitch. Except that now rage won't play on my default monitor. Other than the hardware, nothing has changed with the setup. All my other steam games play on the default monitor but Rage. I'm at a loss here. As windows sees them, monitor #1 is my secondary monitor and #2 is my primary. For a video card I have an XFX 6870 Black edition. I updated my drivers and Catalyst Control center to the latest versions, after experiencing crash issues with rage, so my drivers are all current.
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Dec 13, 2012
Some background first. I have three 1920x1080 monitors. The central monitor is Landscape. The two side monitors are portrait, used for working with web browsers, code, communication.I find it easer to deal with large amounts of text in portrait, where I can continuously track a lot of text without tracking back and forth across the entire width of a widescreen monitor.So, I'm trying to set a background. It works fine.It's abstract-ish, so I set the 'stretch' option.That works fine on the central monitor.On the two side monitors, the image is compressed between the left and right sides of the screen, but does not stretch to reach the top or bottom of the screen. The extent that they seem to extend up and down seem to exactly match the dimensions and alignment of the central screen. If this is so, then it would mean that on the portrait monitors, the background is filling a 1080x1080 block in the center of a 1080x1920 display.The only thing that functions properly is 'Tile'. None of the other options seem to produce any change in the image displayed.
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Apr 23, 2012
I have a Sceptre X20WG Naga 20.1" monitor on a DVI connection with my EVGA GTX460 card. I was using it yesterday while studying for finals and decided to hook up my 37" Westinghouse TV via VGA connection, using a VGA-to-DVI converter to plug into the graphics card, as the card only has dual-DVI and mini-HDMI outputs. It was working grand as a second screen, no issue at all. Now, today, I turned on my computer and my Sceptre Monitor wasn't outputting any images at all, it just said no signal detected and then went to sleep, though my computer was still on.
So I turned on the TV out of curiosity and found that the TV was now the main screen, still with the VGA connection, and I hadn't unplugged anything since yesterday. So I logged in and right-clicked on the desktop, went to screen resolution, and here it says that the TV is the only screen detected, even after hitting detect. So I unplugged the VGA from to TV and plugged it into the Sceptre Monitor. Turned on the computer and the monitor worked like a charm on the VGA cable. I also plugged the DVI cable that I was using for the monitor into the TV and that worked like a champ too.
The only reason this is bugging me is because I won't always be using the TV as a main display because it's kinda of a pain to sit close to a screen that big. So I am currently on this forum while my monitor is using the VGA connection. It also seems to vary from which DVI port I use on the videocard because if I plug the VGA cable with converter into the 2nd port, there is no video output, but if it's in the first port, works great. I'm going to try just the DVI cable to the TV on each card port to see what the deal is there.
So basically:
The cable isn't the problem.
The VGA needs to be in the 1st DVI port on the card to work.
The DVI doesn't work at all when hooked up to the monitor.
What I want is to be able to use DVI on the monitor and VGA on the TV.
Specs:
Intel Core 2 Quad Kentsfield Q6600 2.4GHz @3.0GHz
8Gb Kingston ValuRam DDR3-1333
Asus P5G41T-M LX Mobo
EVGA GTX460(2x Dual link DVI and 1x mini HDMI)
Windows 7 Professional x64
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Nov 12, 2011
I set the monitor resolution to 16800 x 1050 (recommened) with smaller text and it works fine. But when the PC is woken up from standby the resolution is now 800 x 600 with larger text, which is not what I wanted. How do I stop this happening, please? This is a new machine running Windows 7 home premium 64 bit with 22" Edge TFT monitor.
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Nov 22, 2011
my LG w2243s worked fine on my computer before i upgraded to windows 7 from XP proffessional. now it doesn't recognise it. and wont let me adjust the resolution to the monitors settings, i tried updating the driver, but was told i already have the best driver available. my monitor is not listed in DEVICE MANAGER and when i download the driver from LG, it does nothing when i click it..
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Nov 16, 2012
Win7 dual monitor resolution resetting
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Mar 27, 2012
I LIKE XP BETTER.
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Jan 10, 2009
I am running the beta on a Dell M1530 (laptop) and it just won't recognize the second monitor at all. I was running dual-monitors just fine on Vista.
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Mar 7, 2010
I've had a second monitor set up for a while now, but havn't been using it much, i tried to use my second display tonight and its displaying no signal, the second monitor isn't even detecting in windows at all now, nvidia control panal will not detect it even when you try force it, its not in the devices, won't detect through the right click > screen resolutions thing either, its just like its not even connected.
Only changes i have made to computer lately was updating to the latest drivers as i got bad company 2, i tried going back to the old drivers i had and still same problem.
Im using x64 win 7 genuine version, geforce 9800gtx+, 24" acer and 32" LG screens, have had this setup working before, i plugged in the new screen and it worked straight away i didn't have to do anything, now its like its no longer detecting its plugged in, i've tried many restarts, i've tried swapping the plugs around and still can't get it to detect.
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Jan 24, 2012
Whenever i enter to Devices and Printers on the laptop it enters immediately but when i do the same in PC (which is way more powerful machine) it enters but has a little (i mean little LITTLE, almost a second xD) but still noticeable delay...So my only guess right now to explain that behaviour is because PC has more usb devices attached to it (3 usb devices), 2 monitors, also the default Fax and XPS printing icons..Is that correct, im being too paranoic??PS: Please post if you have many devices and you have the same behaviourPS2: I attached the same devices that were connected in my pc to the laptop and menu still loads almost immediately in laptop and has a delay in PC.But i've found something, whenever i right click the PC name icon in Devices and Printers in my pc it delays to show the right click menu and doing the same in my laptop and right click in PC name icon it loads menu faste
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Jan 23, 2012
Whenever i enter to Devices and Printers on the laptop it enters immediately but when i do the same in PC (which is way more powerful machine) it enters but has a little (i mean little LITTLE, almost a second xD) but still noticeable delay...
So my only guess right now to explain that behaviour is because PC has more usb devices attached to it (3 usb devices), 2 monitors, also the default Fax and XPS printing icons..
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Oct 30, 2009
Ok, i love this feature where Windows 7 recognizes my hardware and adds icons to match ,however not all my products model numbers are available thus rendering the feature useless for external h drives etc.
Question:- is is there any way to give the system this information or to change the default icons manually?
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May 12, 2009
I just installed the RC and have been trying everything I can to get it to detect my second monitor. Both monitors are identical and worked in the pre RC version of Windows 7 with absolutely no issues.
I used the Nvidia drivers from Windows update as well as the ones from the Nvidia site. Both will not show my second monitor.
If I switch the cables it works on the other monitor no problem.. It just will NOT detect it when they are both plugged in.
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Oct 24, 2012
i cant get my computer to detect my new monitor. it shows both monitors are the same thing. i want them to be movable.
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Nov 2, 2012
cant get my computer to detect my new monitor?
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Aug 31, 2010
I created a new partition, and accidentally made it my primary partition (C: being my primary one and D: being by other one) now whenever I boot up I get NTLDR missing ctrl+alt+del to restart. So I downloaded the windows 7 repair files from one website and tried to fix it, but I failed and now I wanted to know is there any other way I can fix using command prompt or will I just have to reinstall windows 7.
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