Solved No video output from PC, boots normally.

watsonega

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My Windows 7 64-bit custom-built PC stopped outputting video suddenly. I thought it was just the monitor entering power-saving mode, but no such luck.

I tested the monitor by plugging it into my iMac that sits alongside my PC, and the monitor works just as it did before.

The monitor was plugged into my Nvidia GeForce GTS 250 graphics card that has two DVI ports. I got desperate and tried swapping ports (I knew it wouldn't do anything but I tried anyway :))

I figured the graphics card had died on me and removed the DVI-VGA adaptor connected to my monitor, and plugged it into the VGA port on the motherboard.

It worked, and displayed my boot sequence and then the desktop. However, as I had not used the motherboard's built-in graphics since I bought the card several years ago, and had reinstalled windows many times since then, it had no drivers. So I watched in 800x600 as Windows detected the hardware and installed the drivers, and then asked me to restart, which I did, and later found to be a mistake.

Upon restart, the VGA port was doing the same thing as my graphics card, not showing anything. However, I was able to access it through remote desktop and LogMeIn, and saw that no hardware errors were detected. I then tried using msconfig to restart it in Safe Mode, however, the screen still doesn't display anything, and the LogMeIn software won't run automatically in safe mode. I haven't tried remote desktop yet, but i'd imagine the results would be the same.

Sorry for the long post, but please has anyone got any ideas/suggestions? :)
 

My Computer My Computer

At a glance

Windows 7 Ultimate 64-bitAMD Athlon 64 X2 Dual Core Processor 5200 +3 GBNvidia GeForce GTS 250
Computer Manufacturer/Model Number
Custom-built
OS
Windows 7 Ultimate 64-bit
CPU
AMD Athlon 64 X2 Dual Core Processor 5200 +
Memory
3 GB
Graphics Card(s)
Nvidia GeForce GTS 250
Monitor(s) Displays
HP w1907v
Screen Resolution
1440x900
Keyboard
Microsoft Arc Keyboard/Microsoft Wireless Keyboard 800
Mouse
Microsoft Wireless Mouse 1000

My Computer My Computer

At a glance

Microsoft Windows 7 Home Premium 64-bits 7601...Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz4,00 GBATI Mobility Radeon HD 5400 Series
Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
Safe Mode fixed the problem when connected to the VGA port. I've now fixed the problem by using the motherboard rather than the graphics card, which I think must have come loose or needs replacing.

The cable must have come loose when it was connected, hence why the monitor still didn't show anything when connected to the motherboard.

Looks like I'll need to replace the graphics card :(
 

My Computer My Computer

At a glance

Windows 7 Ultimate 64-bitAMD Athlon 64 X2 Dual Core Processor 5200 +3 GBNvidia GeForce GTS 250
Computer Manufacturer/Model Number
Custom-built
OS
Windows 7 Ultimate 64-bit
CPU
AMD Athlon 64 X2 Dual Core Processor 5200 +
Memory
3 GB
Graphics Card(s)
Nvidia GeForce GTS 250
Monitor(s) Displays
HP w1907v
Screen Resolution
1440x900
Keyboard
Microsoft Arc Keyboard/Microsoft Wireless Keyboard 800
Mouse
Microsoft Wireless Mouse 1000
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