Display brightness function lost after install of monitor driver

I think there may be a bug in Team Viewer 12. I have a Lenovo T420s laptop and I recently installed the monitor driver in order have the ability to disable the screen. By installing the monitor driver I lost the ability the adjust the brightness on my screen. Have you received any other reports regarding the same?

Find more posts tagged with

Accepted answers

LarryB

Go into TeamViewer, Extras, Options, Advanced Options and choose uninstall monitor driver. Someone needs to pin this to the top as the "solution".

All comments

HermanoBenjamin

I have this issue in 8 laptops, hp, and i need this to be fixed soon, i'm using windows 10 creators update, anything we can help you with?

LarryB

Are you kidding me??? This has been an issue for me for a long while. Typically I use my laptop with normal brightness but every time I wanted to use my laptop in my bed at night the glaring brightness would cause me to have to close it up early or leave the room in order to avoid annoying my wife. It's absurd that @User51973 does not warn of this issue when turning on the "show black screen" option. This warning should pop-up every time until this bug is resolved! Think about this, we're in IT. Everyone in this thread most likely stumbled upon this the same way I did. Went to device manager and noticed something weird about the manufacturer and digital signer: TeamViewer GMBH. I don't change my display brightness enough to notice the moment it stopped working. For those of you that did, good catch! Had I cared more, I may have paid more attention and found the issue sooner. TeamViewer, millions of other users are having this issue and are not even realizing that you broke their environment. You have a responsibility to say something about this to ALL of your customers.

Kittipat

Me too, I lost ability to adjust brightness function on Lenovo IdeaPad G40-45 and there is only one way for recovering this function back to normal again (Maybe you'll lost some data that changed on System Recovery turned on by any drive), Just using "System Recovery" on Control Panel.
For now I can't find Display Driver on anywhere on any settings, so using System Recovery you must be remembered the date of this happened (Use the restore point that before happened on any restore points).
========
Now, I using System Recovery and selected restore point that I created before the date of install Display Driver on my Laptop.

Please reply this message if this suggest working for you and got ability to adjust brightness function back again

Jacob1

I found out how to fix the problem!!

Just go to Extras>Options>Advanced>Show Advanced Options>Scroll down to "Advanced Network options" and click "Uninstall monitor driver".

Then reboot the computer and you should be fine! :-)

iTeks

Same problems here!

What may work is if there is a commandline or switch/button to toggle between installaing and uninstalling the monitor driver on the fly.

Anyone know a commandline to install and uninstall the monitor driver?

Jacob1

No, but if you follow the steps I gave you, you will find the install/uninstall toggle button.

Jacob1

Your Welcome!!

FYI this will work on ANY computer.

stan1

Same problem on my Dell XPS 13 9350

stan1

Thanks for the suggestion.

RonOnThePond

Have you tried the solution posted by @dedicado? It takes about 10 seconds, and it instantly worked for me. My wife's Dell Inspiron laptop acquired this issue, probably associated with Teamviewer. But after days of troubleshooting agony, the fix was simple

"In the Device Manager ... under Monitors > PnP Monitor (or a slight variation) select "Update Driver" > Browse my Computer > Let me pick: There are 2 options... The driver causing the issue is called "PnP-Monitor (Standard)". I selected the other option: "Generic PnP Monitor"

That fixed it for me, and as far as I can tell, Teamviewer still works normally.

stan1

I'll give it a try. Thanks!!

iTeks

I tried that fix on a different system and it didn't work for me so I gave up on this fix

sounds as though the fix may be systemn dependent - I'll try it on the next system I experience this problem

thanks

stan1

Thanks for the reply. I appreciate it.

Stan

stan1

I opened device manager and deleted the monitor. Worked for me.

Erwin1234

I have the same problem with TeamViewer 14.2.8352. However in settings the display driver does not list as installed while in device manager the driver is clearly installed. There is a warning from Windows 10 in the properties of the TeamViewer driver PnP-Monitor (Standard):

Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)

In admin mode I can replace the TeamViewer driver with the generic pnp driver of Windows. I can then install the teamviewer driver via advanced settings, but this fails with an error message. However the TeamViewer drivers actually are installed again!

I removed TeamViewer completely. Now display driver is restored and all works again.

pcmobilehelp

The blank screen driver has been interfering with brightness control since version 9 for sure, and I suspect this must have been a bug ever since the blank screen feature was originally added to TeamViewer.

Compare this with the note from the TeamViewer Community Manager in June of 2017:

To answer the other question: It is enough, if you just post the topic with your findings since we are reading all posts in our Community :-) And so we check all reported issues with our support and devs.

So it is safe to assume (if we trust the community manager) that this has been checked and reported with support and developers.

Would it be too much to ask to at least hear back from the devs on the status of this ticket?

Was the bug by design?

Was the bug acknowledged and swept under the rug?

Did the devs at least try to fix the bug and found out that it is too difficult for them to fix it?

Abhaypatial

@TeamViewer this issue is Known since 2017 and in 2021 its still not fixed ???

@Esther

Levia_Mae

Just as an update, this IS STILL AN ISSUE in 2024