7710 full screen problem

ciao guys

a problem with the full screen: using for example the win10 default video player or WMP, if I try to run whatever video in full screen, it will be black (only audio, black video). Same problem in the browser (chrome, IE, Edge) if I try to run a youtube video on the full screen....(or in facebook too).

Only VLC is able to let me see the full screen without problems.

This happens ONLY when the notebook goes out to U2410 Dell external monitor.

Using the notebook alone (so with its own screen) the "black screen" problem in the player or in the browser is not shown.

I really don't understand the problem and how to solve it....

The system: 7710 no TB, M3000M, IGZO 4k...

Any suggestions?

tHanks
ciao

 

Is your external screen connected via ePort dock?

 

- Dock or no dock?
- which connector are you using (hdmi, dvi, dp, vga?)
- which GPU (intel or Nvidia) is driving the external?
- switchable graphics enabled or disabled in BIOS?

I've not experienced issue like you describe from my 7710 using external Dell 1440 displays or with Asus 1440 displays using either the ePort or plugged direct into the laptop (via DP for both instances - hdmi works from the laptop too but I've not tried hdmi from the ePort).

I would probably do some sanity checks such as checking if the external is having to perform scaling because the GPU (whichever it is) is sending wrong signal. stuff like that

 

Hi guys

- dock station
- DP
- swtichable graphics enabled in bios
- I think when is connected to an external monitor the integrated itel GPU does not work, so it's driven by the nvidia M3000M

 

You can find out which GPU is driving which display by looking at Nvidia control panel and also look at the Intel HD Graphics control panel. One or the other will be driving it. Switchable graphics enabled does not necessarily mean that your external is driven through one or the other GPU when using ePort dock. My external is driven solely by the quadro through the DP1 of the ePort dock with switchable graphics enabled while my laptop display is driven through the Intel GPU but can use Quadro via Optimas when necessary. But by checking a box in Video settings of the BIOS the external will be driven through the Intel GPU instead of quadro when connected to DP1 of the ePort dock (I forget the name of that setting but it is found under VIDEO in BIOS and is to the right of the Switchable graphics check box... you'll know it when you see it).

While in those control panels also check what resolution the external is being fed. If it is different from the native resolution of your external display then your dell monitor is having to do scaling and that may account for some of the problems.

*Perhaps try re-installing the Intel GPU driver and then the Nvidia driver too. This solved a strange display problem I had one time when awaking my laptop from sleep. During the Nvidia driver installation it will ask if you want to delete your prior installation in entirety. Check mark that box to affirm you want to uninstall the driver entirely before re-installing.

 

With the external display attached to the ePort dock, you are correct, the NVIDIA GPU will be driving it if graphics switching is enabled. I have found cases where odd things happen when you are operating on two different graphics adapters.

Try this and see if it solved your problem...
* Attach the external display to the system directly so that it will use the Intel GPU
or
* Close the laptop lid so that only the external display is in use, so you are operating on NVIDIA only

If you don't have issues in these situations, then it is likely the split-GPU working mode that is causing the issue. A starting point, but I don't necessarily have a solution for you ... :-\

 

I'm having the same issue with my 7710.
Switchable graphics enabled. E-port Plus docking station connected via display port to a Dell monitor. Full screen videos on any type of website and even Remote Desktop full screen ends up all being a black screen on both the internal 4k LCD and the external monitor. It occurs with switchable graphics ON and the other setting next to switchable graphics either on or off in the BIOS (I think it is called Dock Display Port).

Closing lid on laptop to turn off LCD still end sup having a black screen on the external monitor.

Connecting monitor to mDP on machine rather than through the dock works successfully for full screen videos.

When connected through the dock, the NVIDIA Control Panel has a bunch of settings you can configure and shows you the topology.

When connected directly to the machine's mDP, the NVIDIA Control Panel only has a few settings under 3D Settings.

 

This is an issue that can occur when you have two different GPUs driving the desktop, which is the case when you have switchable graphics on and you are using the ePort dock. The Intel GPU drives the laptop display, and the NVIDIA GPU drives the external display. (The NVIDIA GPU can still render content on displays driven by the Intel GPU, but the data is sent from the NVIDIA GPU to the Intel GPU frame buffer for display, and this can be set up on an app-by-app basis, configured in the NVIDIA control panel.)

You are right about the NVIDIA control panel only exposing a lot of the options if there is a display connected. If everything is running through the Intel GPU, it only shows you the options for Optimus (determining which apps run on which GPU) and a few other things.

Anyway, to fix it for your situation with the ePort dock with switchable graphics enabled, do this:
Go to the BIOS, and right next to the option where you turn switchable graphics on and off, there is an option to have the Intel GPU drive one of the DVI/DP ports on the dock. Turn that on. Attach the external monitor to that port (might have to experiment to figure out which it is). With the Intel GPU driving both monitors, you should not have an issue.