How To Fix Black Screen on Windows 7 After Resume from Hibernate or Resume from Sleep
There are a number of potential issues that could cause Windows 7 to not show a black screen.Improper configuration for your hardware, video drivers or your computer'sBIOS can range from this.If your computer doesn't come back from a black screen after a few seconds, you will need to restart it to change some settings.
Step 1: Turn off or restart your computer.
If you don't see a picture on your computer, you can power it off by holding the power button down for a few seconds.Turn off the power supply on your desktop or remove the battery from your laptop if the computer doesn't power off.The bootup sequence can be initiated by turning the computer back on.
Step 2: You can open the settings.
You can change the settings of your computer, including the fan speed, with the help of theBIOS.If you want to get to the setup menu, you will have to hit one of the function keys.If the computer is pre-built, make sure to read the user's guide on how to setup the screen.You can see the function key on the splash screen.The menu can be activated by pressing the key repeatedly during the startup sequence.
Step 3: The fan speed is identified.
Use the arrow keys on your keyboard to navigate to the Hardware Monitor, where you can find the listing of theCPU fan speed.If the fan speed is too slow, the BIOS may show an alert.If there is no warning, you should know what the fan speed is.The fan speed can be changed by the BIOS.Refer to your computer's manual for where the settings are located in the bios.
Step 4: Change the fan speed.
The arrow keys can be used in the hardware monitor.Press enter then use the arrow keys to change the fan profile information to match the settings.The recommended fan setting can be found in the user guide of your computer.The issue may be related to the graphics driver if the fan speed is set at the recommended setting.
Step 5: Fan-controlling software can be downloaded.
If your computer supports third party applications such as SpeedFan, you can try to control your fan's speed outside of the BIOS.To make sure your computer is compatible with fan controlling software, check the compatibility documentation on the developer's website.You may not be able to use these programs in Windows due to the BIOS.If you use a pre-built computer, you should check the user's guide or support to see if there are any programs dedicated to controlling the fans.
Step 6: You can either repair or replace the fan on your computer.
The fan may need to be cleaned, repaired or replaced if it is damaged or not achieving appropriate speeds.If you attempt to increase the fan speed to speed up from within the BIOS, this will cause more wear on yourCPU and give it a shorter lifespan.
Step 7: The graphics drivers need to be updated.
As the issue may have been resolved in a later update, make sure the graphics driver is up-to-date.The system may not be able to restart from sleeping or hibernating because of difficulties communicating with Windows.The manufacturer's website is where you can check for any updates.If the current update for the bios or graphics drivers is facing problems, it is possible that you need to rollback to a previous update or prevent an update from happening.Check with your computer or device manufacturer's website for any significant updates and how to return to a previous driver or bios update.If you need to return to a previous version of your device drivers, you can navigate to the "Control Panel" from the Start Menu.There is a new window that lists the different drivers associated with each device if you search for or open the device manager.Click on the "Driver" tab in the new window if you want to roll back the driver.
Step 8: Turn off your computer.
This makes sure that the updates installed on your computer are working correctly.Continue with the instructions on how to use a diagnostic mode for Windows 7 if the issue persists.If you don't see a picture after you put the computer into sleep or hibernation mode, you can either hold the power button down for a few seconds or remove the battery from the laptop.
Step 9: Go into safe mode when you turn on your computer.
This will allow you to start Windows in a diagnostic mode, which is useful for identifying significant errors on your computer.You can press a function key during the Windows 7 startup sequence.The function key can be found in the user's guide of your computer.Use the arrow keys to select safe mode.
Step 10: Go to your desktop and set your computer to sleep.
After you access your computer's desktop in safe mode, you should be able to sleep.If this setting is activated, laptops can be set in hibernation mode.The Start Menu can be used to choose between "Hibernate" or "Sleep".The computer should be sitting for two or three minutes.
Step 11: You can resume from the sleep mode.
If the graphics driver was updated and the computer restarts normally, the issue may be due to your computer not having enough RAM or a corruption during the installation of the Windows 7 operating system.
Step 12: Close programs that use a lot of ram.
Windows may have difficulties returning from hibernation if programs make high use of RAM or memory leaks.To identify programs that can be closed to free more RAM, right click the Start bar and select Task Manager.
Step 13: Take a look at the physical RAM usage.
The page file size is more important than the physical RAM.If your hard drive exceeds the limits of your computer's RAM, Windows will use it for applications.Windows may not have enough resources to return to your desktop if your computer is running programs with high RAM usage.You can access the Start Menu by clicking on start in the lower left corner of the screen, then right-clicking on "My Computer", and selecting "Properties".
Step 14: Go to Advanced system settings.
Choose "Advanced system settings" in the left column of the new window.
Step 15: Go to the Performance settings.
Under the "Performance" section, select "Settings".
Step 16: You can change the virtual memory settings.
The "advanced" tab is in the new window.Click on the "Change" button to open a new window.
Step 17: The page file size should be set.
You can choose a local hard drive if you want to, then choose "Custom Size" and set the size to the same value as displayed in the "Recommended" value shown at the bottom of the window.Click on "Apply" and "OK" to save the changes.