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Laptop Not Recognizing Its Own Screen... Sometimes

laptop display support help monitor tech support screen

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#1
sam5776

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Alright, so this started happening about a year ago and it's driving me insane. Most of the time when my computer is coming out of sleep mode or being powered up, the screen just won't light up. When connected to a monitor, the monitor works and is detected as the PC screen. However, if I just keep turning the computer off and back on, the screen will eventually start working again. But sometimes when the screen is working and then I connect it to a monitor, the screen will just stop with the monitor still working... but only sometimes. Others times it works as intended. Everytime it turns on I get the notification error "Communication error, tray won't start," or something to that effect. Also, for whatever reason, when it does come out of sleep mode successfully, it will be in 600x800 resolution. I've gone through and I'm 100% positive every single driver even slightly related to graphics has been updated. The only option given for hertz is 60 so it can't be anything related to that, unless the computer just isn't giving me the option. I DON'T UNDERSTAND NOTHING MAKES SENSE SOMEONE PLEASE HELP ME OUT OF THIS MADNESS. And also, once the laptop screen is on it will stay on no matter what until it's closed or turned off, so it's not a hardware issue. Or it is... I am very confused. I really am not sure if this is even the right forum to post this on lol. 

It is a Toshiba Satellite with a Core i7-5500 processor and 12 GB of ram running Windows 10.


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#2
paws

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Hi sam5776 and welcome to our forums,

:welcome:

 

Sorry to hear of the problems you have been experiencing.

 

Before you try swopping out your existing screen for a new working one try the solutions shown here:

https://social.techn...win10itprosetup

Regards

paws


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#3
dmccoy

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What happens if you boot into safe mode? What version of of Windows are you using?
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#4
sam5776

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Hi sam5776 and welcome to our forums,

:welcome:

 

Sorry to hear of the problems you have been experiencing.

 

Before you try swopping out your existing screen for a new working one try the solutions shown here:

https://social.techn...win10itprosetup

Regards

paws

Thank you, I will go through the steps here and report back with what ends up happening


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#5
sam5776

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What happens if you boot into safe mode? What version of of Windows are you using?

I'm using the most basic Windows 10 64 bit for home use, it is fully updated. And safe mode will sometimes work and sometimes not... just like the PC itself


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#6
dmccoy

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Step 1:
Speccy
Download Speccy to your desktop

1. File > Save Snapshot. This will create a file called [hostname].speccy
2. File > Publish Snapshot. This saves your snapshot to their servers
3 Copy and Paste the link to your next Reply

Step 2:
Click on Start menu
Type command to start searching
Right click on command prompt in list and select Run Administrator
Copy and Paste each the commands below into the command prompt and press Enter key

1. sfc /scannow (best to run 2-3 times, rebooting after each time)

2. (Windows 8 or higher)
dism /online /cleanup-image /restorehealth

When these have completed:
Right click on the top bar command window
Left click on Edit then Select All
Right click on the top bar again
Left click on edit then copy
paste into your reply

If any Errors are found with sfc /scannow then:
Copy and Paste the following command, and press ENTER:
findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt"
This will copy sfcdetails.txt to your desktop
Upload sfcdetails.txt file

Step 3:
Download Event Viewer Tool to your desktop

1. Right click on Vew.exe program and select Run as Administrator
2.. Under Select log to query
3. select System
4. Under Select type to list
Select:
* Error
* Warning
Choose the Number of events as follows:
Click on number of events
Type 20 in the box (1 to 20)
Click the Run button (Notepad will open the log)
Upload files to next reply
Rename to SystemLog.txt or it will be overwritten

Run the above steps again Except at step 3.
Select Application
Rename log file to ApplicationLog.txt
Upload or Paste to next reply


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#7
sam5776

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Attached File  SystemLog.txt   22.12KB   68 downloads

 

The Speccy is here: http://speccy.pirifo...ANelJ6uaZztq1kV

 

The command prompt is: Microsoft Windows [Version 10.0.16299.371]

© 2017 Microsoft Corporation. All rights reserved.
 
C:\WINDOWS\system32>sfc /scannow
 
Beginning system scan.  This process will take some time.
 
Beginning verification phase of system scan.
Verification 100% complete.
 
Windows Resource Protection did not find any integrity violations.
 
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>
C:\WINDOWS\system32>dism /online /cleanup-image /restorehealth
 
Deployment Image Servicing and Management tool
Version: 10.0.16299.15
 
Image Version: 10.0.16299.371
 
 
Second Time
 
Microsoft Windows [Version 10.0.16299.371]
© 2017 Microsoft Corporation. All rights reserved.
 
C:\WINDOWS\system32>sfc /scannow
 
Beginning system scan.  This process will take some time.
 
Beginning verification phase of system scan.
Verification 100% complete.
 
Windows Resource Protection did not find any integrity violations.
 
C:\WINDOWS\system32>dism /online /cleanup-image /restorehealth
 
Deployment Image Servicing and Management tool
Version: 10.0.16299.15
 
Image Version: 10.0.16299.371
 

 

Attached Files


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#8
dmccoy

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Are you getting full crashes with blue screen errors? If so, please do the following to copy the m8nidump files to your desktop. Also I recommend testing your hard drive with either the mfg utility or seatools. Make sure to run the long test. 

 
Click on Start menu
Type in command
Right click on Command Prompt in list and select Run as Administrator
Copy and Paste the following command into the command console
Compress the files to .zip and upload to your reply
 
copy %SystemRoot%\minidump\*.dmp "%USERPROFILE%\Desktop\"

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#9
sam5776

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No, the computer itself isn't crashing at all... it is still fully functional. It's just that it sometimes won't show up on the display. And I'll test the hard drive in a second and report with the results. Also, the command doesn't seem to be working.


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#10
sam5776

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Also, completely forgot to mention this but I followed Paws suggestion and I no longer receive the tray failing to start... but it didn't fix the screen issue so I guess it was unrelated.


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#11
TooNew2

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If the problem were caused by an intermittent poor connection in the cable going to the display, where would an error code be set? Am I correct in assuming that possibility has been ruled out?


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#12
dmccoy

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It sounds to me then that it related to a loose connection or bad hardware. Do you have another monitor or tv that you can hook up to and test?

 

Also, the command doesn't seem to be working.

 

That just means you did not have any minidump files. There are few things in your logs that can be cleaned up but let’s see if we can figure out this issue first. 

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#13
sam5776

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It sounds to me then that it related to a loose connection or bad hardware. Do you have another monitor or tv that you can hook up to and test?

 

Also, the command doesn't seem to be working.

 

That just means you did not have any minidump files. There are few things in your logs that can be cleaned up but let’s see if we can figure out this issue first. 

 

 

When I connect the laptop to a monitor or TV with an HDMI cable it works normally... but I do not have another laptop screen I could test it with if that's what you're asking


Edited by sam5776, 04 May 2018 - 02:56 PM.

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#14
sam5776

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If the problem were caused by an intermittent poor connection in the cable going to the display, where would an error code be set? Am I correct in assuming that possibility has been ruled out?

I honestly have no idea, I can't say for certain that anything is 100% ruled out at this point.


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#15
sam5776

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Are you getting full crashes with blue screen errors? If so, please do the following to copy the m8nidump files to your desktop. Also I recommend testing your hard drive with either the mfg utility or seatools. Make sure to run the long test. 

 
Click on Start menu
Type in command
Right click on Command Prompt in list and select Run as Administrator
Copy and Paste the following command into the command console
Compress the files to .zip and upload to your reply
 
copy %SystemRoot%\minidump\*.dmp "%USERPROFILE%\Desktop\"

 

The hard drive long generic test says that it passed, so the hard drive seems to be good.


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