Black screen after sleep mode and screen off (in power safer mode)

Hi gergelykocsis,

Have you tried changing the Power options in “Advanced” settings tab? If not please try the below mentioned steps:

1. Click Start button, click Control Panel, click System and Security, and then click Power Options.
2. On the Select a power plan page, click Change plan settings for the plan that you want to change.
3. On the Change settings for the plan page, click Change advanced power settings.
4. On the Advance settings tab, expand Sleep, expand Allow Hybrid Sleep, and choose OFF.
5. On the Advanced settings tab, expand Sleep, expand Allow wake timers, choose Disable for both when your computer is running on battery and when it's plugged in, and then click OK.
6. On the Advanced settings tab, expand USB settings, under USB settings expand USB selective suspend settings, choose Disable.
7. Click Apply and then OK to save the changes.

Check if the above steps work and reply.

Hi,

I checked the advanced settings and the usb settings were different. I set them up according to your instructions. Now i will be testing it (on battery - sleep mode & when plugged in - turn off the display), because the problem has occured randomly. I will let you now. I contacted also microsoft, because it is possible that a bug causes the problem.

Thank you for your help and kind regards,

Gergely Kocsis

Hi Gergely Kocsis,

Sure please try the steps and post the results.

I will be glad to assist you further.

Hi,

i completed the test, but without any result. I have "good news", yesterday i installed the new intel vga driver and today i coludn't get into the windows. This time the screen was not black as before but it was flashing. I sometimes could see the cursor but i couldn't do anything. In safe mode i removed the official intel vga driver and after this i could get into the windows. So i'm using the microsoft driver and now i will test, how does it work.

Thank you for your help and kind regards!

Gergely Kocsis

Hi Gergely Kocsis,

If the steps do not help, let’s try to uninstall and reinstall both the video card drivers.

Please follow the below mentioned steps to uninstall both the video card drivers:

1. Click “Start”.
2. Click “Control Panel” and select “Device Manager”.
3. On the “Device Manager” window, expand “Display adapters”.
4. Right click “Intel(R) HD Graphics” and click “Uninstall”.
5. Ensure to check the box “Delete driver software for this device”.
6. Follow the on-screen instructions to uninstall the drivers.
7. Right click “AMD Radeon HD 6470m” listed under “Display adapters”and click “Uninstall”.
8. Ensure to check the box “Delete driver software for this device”.
9. Follow the on-screen instructions to uninstall the drivers.
10. Restart the computer.

After the system restarts please run Windows updates.

1. Steps to run “Windows updates”:
2. Push the “Windows” key to open “Start” menu.
3. Type “Windows Updates” in the search box and select it.
4. Run the Windows Updates.
5. Check and install the Intel graphics card drivers displayed by Windows updates and restart the system.
6. After the system restarts please install the AMD Radeon HD m graphics drivers from  the link: http://dell.to/T2hKYc
7. Click the above link, enter the service tag of the computer and select the operating system.
8. Install AMD drivers listed under video.

Check the functionality of the computer and reply.

I was having this same problem and searched all over the internet for a solution to no avail...HOWEVER, I believe I have SOLVED this problem on my own.  It is not the monitor, it is not a short, it is not the power settings....

The problem is actually Mcafee.  After uninstalling it completely (and replacing it with Norton which is what my other home machines use), the monitor problem ceased to exist.

I'm a happy camper...please...someone let me know if this works for them.

Hi!

I tested the system (all drivers & programs) last month. I always restored the system to factory default system (windows 8). The dell toucpad driver makes the problem. Test (I made the power plan):

- Dim display: 1 min

- Turn off the display: 2 min

- Put the computer to sleep: never (on battery 1 hour)

It was very interesting, that when i scrolled on the touchpad on the internet, the screen started to dim and when i touched  other place on the touchpad the screen came back to full brightness. I removed the toucpad driver and the problem has been resolved but I can't use the scrolling with windows driver. I'm waiting for the resolution.

Thanks and Regards,

Gergely Kocsis

Hi! 

I had the same problem. Deleting McAffee also solved my problem. It also eliminated another problem I had. I wasn't able to use the function keys (F1, F2, ...) in some installed programs, because it seemed like the Windows shortcuts (like speaker volume, luminosity, etc) had priority. Now I'm able to use these function keys again in my programs! Dell team, please investigate this problem and communicate the information to McAffee if you want to continue to install this antivirus on your PCs. It will save other users lots of frustration and have everyone waste less time. :)

Hi!

I found this forum haveing the same problem. I bought a DELL Inspiron 15 7000 this summer and I faced with this black screen problem one week ago. I'm satisfied with the McAfee so I would not like to remove it. Does the Dell Comopany have any other suggestion/solution to solve this problem?