Computer goes to sleep when HDMI monitor is turned off
I am running a Windows 7 system as a home theater PC (HTPC), through which I have a TV tuner, hold all my stored movies / photos / music / etc.
The monitor for the PC is an LCD TV which is connected to the computer via an HDMI port which is part of my
The system had been working fine until last month when my hard drive crashed.
I couldn't find my original Windows 7 install discs, so I had to buy all new software (Windows 7 Home Premium) as well as a new hard drive.
Now, whenever the TV is turned off, the computer goes to sleep.
This is a big problem because (1) I want to be able to access media stored on this computer from other PC's / devices in my house, but can't do so when it is asleep, and (2) it misses recording
shows when it is asleep.
I have changed all the power options such that the computer should not go to sleep or hibernate at all, I have updated all the video drivers, and nothing seems to help.
Any ideas would be appreciated!
The system I am running is:
OS: Windows 7 Home Premium
Processor: AMD Athlon II X3
Motherboard: Gigabyte GA-MA785G-UD3H
Onboard Video Chipset: ATI Radeon HD 4200
Thanks in advance for any suggestions.
Keys to the Problem Computer goes to sleep when HDMI monitor is turned off
Clean boot: To help troubleshoot error messages and other issues, you can start Windows by using a minimal set of drivers and startup programs.
This kind of startup is known as a "clean boot." A clean boot helps eliminate
If the computer is connected to wireless internet then on restart you will lose your internet as clean boot will disable all the third party software.
Please make sure you connect through cable and then perform clean boot.
a. Click on Start à type MSCONFIG in
start search box and press Enter.
b. In open System Configuration window, choose the option:
c. Under that, uncheck the option: Load System services.
Note: Ensure that you have
Load Startup items option check marked.
d. Go to Services tab.
e. Click on Hide all Microsoft Services at the bottom left of the window.
f. Click on Disable All.
g. Click on Apply and then
h. Restart the computer.
Check if it works fine
Steps to configure Windows to use a Normal startup state:
After you used the clean boot to resolve your problem, you can follow these steps to configure Windows XP to start normally.
a. Click Start,
b. Type msconfig, in
start search and then click OK.
c. The System Configuration Utility dialog box is displayed.
d. Click the General tab, click
Normal Startup and then click OK.
e. When you are prompted, click Restart to restart the computer.
Hope it helps
Use the System File Checker tool to repair corrupted or missing system files:
- Click Start.
- Type cmd, and then press CTRL+SHIFT+ENTER to open the elevated command prompt (I.e. Command prompt with administrative rights).
- The User Account Control window should appear, be sure that the action it exhibits is correct, and then press the Continue button.
- Type or copy paste the below command line into it without quotes:
- "Sfc /scannow"
Another Safe way to Fix the Problem: Computer goes to sleep when HDMI monitor is turned off:
How to Fix Computer goes to sleep when HDMI monitor is turned off with SmartPCFixer?
1. Click the button to download Error Fixer . Install it on your computer. Open it, and it will perform a scan for your system. The junk files will be shown in the list.
2. After the scan is done, you can see the errors and problems need to be fixed. Click Fix All.
3. The Fixing part is finished, the speed of your computer will be much higher than before and the errors have been removed.
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