Grun

Hi Luis, Camsdad, Been away from the forum and missed your replies. Yes Luis, the frame rate took a hit, and I shelved the investigation pending more Googling! DPC latency seems to be the problem, I ran latency mon and the main culprits listed in the readout are, dxgkrnl.sys (direct x kernel driver) and nvlddmkm.sys (nvidia kernel driver). Both drivers are up to date so I am at a loss when it comes to a solution. The problem is quite widespread it seems. Hey Ho.

OK cracked the crackling ! In FS 9 Settings / Display / Hardware...I unchecked the Transform and Lighting check box and the crackling went. Just have to get rid of all the Windows 10 'Carp'... Candy crush soda and the like, and should have a usable backup. Grun

Camsdad, Thanks for your post. At present I have installed only the basic fs 9.... (fresh installation). No add on aircraft or scenery. (Must have installed uninstalled several times now). The Windows 10 is a fresh install, all drivers are up to date, including Nvidia (clean install). What bugs me is I have another set up with an older dual core processor than runs fs 9 loaded with add on aircraft and scenery really well with a 7.1 sound system and a 40 inch Samsung 4k TV / monitor. I am going to check on hardware acceleration next. may need a registry entry from what I have read. Grun

Hi Luis, Thanks for the info. I was not aware that setting the frame rate at unlimited would have an effect on the sound. This processor is not that great, and setting the FR at unlimited only gives me around 30 fps, normally I keep it set at 20 to 25 fps. I understand that FS9 only uses one processor core so I guess using one core on a quad is less efficient than using one core on a dual, for instance. Forgot to mention the old Dell does have 8 GB ram. Kind regards. Grun

Long time old lurker, first post. Problem is crackling sound. Set up runs audio and video perfectly, except FS9, when run on either XP,7,or 10, then the sound is very crackly, sometimes with an echo. (Currently only windows 10 installed.) I have tried two different NVIDIA cards, GT 710 and GT 1030 and the sound crackles whether the sound output is via the HDMI port to the monitor, or via the onboard integrated sound. Without a GPU card the sound is perfect but the video poor. Set up, (Don't laugh!) Dell Optiplex 745 Intel Q6600 quad core 2.4 GHz 1Tb drive. (It is only a backup for another setup that runs FS9 really well) Any suggestions welcome!!

Comet C2 216 squadron RAF Lyneham 1958, just round the pattern. 'Circuits and bumps' we used to call them. Rearward facing seats, lots of legroom. I was a Junior Technician (JT) maintaining the aircraft. No doubt because of the history of cabin structural failure, we used to perform ground runs taking the cabin to max differential pressure. :Nail Biting: