(Solved)Black Displays in FSX with 777 Windows 8.1

Hi,

Windows 8.1 UAC rules have changed, this might be your problem.

Now even if you go to the UAC menu and set the slider all the way down, the User Account control is NOT fully deactivated.

FSiPanel needs to modify file in FSX directory to create your specific scenario, Windows 8.1 doesn't allow it.

Please try the following which worked for another 8.1 user:

1:
open regedit and locate this key.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

In the right pane look for EnableLUA and modify its value to 0. Close regedit.

Restart computer.

Warning

Setting the EnableLUA to 0 will make all metro apps stop working until you set it back to 1 and restart the computer.

2: Delete your previously created 777 on FSiPanel and recreate a new one with UAC OFF.

Try an approach with this new setting.

Please let me know if that fixes your issue.

Kind regards,

J-P

Just to confirm, are you running PMDG 777 with Service Pack 1 installed?
J-P

Ok and when starting the 777 on ground to create the aircraft with FSIPANEL, are all the screens powered?

Can you try to un uninstall FSiPanel and create a new installation now that UAC is disabled.
Try to install it on c:\fsipanel
J-P

I have uninstalled FSiPanel and reinstalled it in C:\FSiPanel and same result with the displays black and the aircraft pitching up continuously in the trimming process.

Maybe I am a bit over-ambitious expecting that FSX will work in Windows 8.1 and I certainly don't think we can expect Microsoft to leap to our assistance on account of 'incompatibility' issues.

Any further ideas would, however, be very welcome.

Yes, I am using Windows Defender in Windows 8.1.

Do you recommend switching it off?

Did you create a new aircraft when your antivirus was off?

Hi J-P,

Whereas I am probably pushing my luck with an unsupported OS (Windows 8.1), both in terms of FSiPanel and the PMDG 777 (you've confirmed their statement on support for Windows 8.1), have you had any opportunity to look into this phenomenon, please?

Can you give me the following info:

- Windows 8.1 32 or 64 bits
- any antivirus?
- any malware software?
- FSX SP2 and latest PMDG 777 ?

Thanks,

J-P

Thanks to J-P's efforts, a workaround to this problem has now been found.

The trick is to set FSX memory protection to Extreme in FSiPanel. Now set up the aircraft in FSiPanel (with FSX running) as usual and select MOVE A/C with the selected approach. The effect of setting the memory leak to Extreme is to shutdown FSX temporarily when MOVE A/C is pressed, but FSX itself soon restarts and positions the PMDG 777 on the approach precisely. The screens are no longer black and are fully operational again! It should be noted that you should delete all slew assignments to controllers in FSX to avoid issues with excessive slewing and perhaps an inability to set the aircraft up on the approach correctly.

Full marks to J-P for his excellent support and I am more than happy to mark this as solved.