SHWotever
random black screens in iRacing when Simhub is started
I have random black screens in iRacing lasting 2-4 seconds. I was able to reproduce it yesterday on the IMSA Practice Server - Watkins Glen. I drive the out lap and then went on the timed lap. Then on the second to last corner there is a black screen for about 3-4 seconds. The image comes back, but by then you have usually already driven into the guard rail. I had the same problem even after leaving the server and switching to another server. Out laps again and again, then on the first or sometimes second timed lap, the black screen came on the second to last corner. I restarted the PC and was able to drive a few laps. In the subsequent endu, then on the 8th lap there was another black screen. I used Google to search for the problem. I deactivated G-Sync in the Nvidea control panel and was pleased that it worked for the time being, but after another 23 laps there was another black screen and after another 20 laps (I didn't pay attention to the lap) there was another black screen.
So I just spent half the night testing on the Nordschleife practice servers. Racelab closed, 1-1.5 laps -> black screen. Left the server, Simhub closed, joined the server again, no black screen for 2 laps. Changed practice server, no black screen. Left the server, started the Simhub, joined the server, drove half a lap -> black screen. Left the server, Simhub closed, joined the server, 2 laps without black screen. I updated to version 9.6.3 yesterday, before that I had version 9.6.2, with which I had these black screens, but somehow not so often. Out of 10 drives, maybe 2 times. I use Simhub for 2 smart flags and rumble motors on my pedals.
attached a log where I had these black screens SimHub.4.txt
Hi !
Usually black screens like that are more related to a screen connection loss. This can happen with EMIs or parasites around the hardware driven, To quickly check this theory I would unplug both arduinos, and test then add them back one by one to see if one is the culprit.
Screens issues is very very unusual so the guide here is not the most adapted to this very specific case gut it should give some insights : https://github.com/SHWotever/SimHub/wiki/USB-Issues-Troubleshooting
I would rule out screen connection loss. I use 2 monitors on the RIG and it only affects the one on which iRacing is running. The one above it stays ON. Furthermore, the windows would move if there was an interruption. I tested this by simply pulling the display port cable out of the screen. I will try it out and unplug one Arduino or switch it off at the USB HUB (active USB HUB). Since everything worked until a few days ago and since then I have actually only installed the Smartflags. But I couldn't pinpoint the time to whether it started with the installation of the Smartflags. I will test it
I have now tested the following again. Simhub active -> tested twice on different practice servers -> black screen Simhub active, Smartflags not connected/disconnected from the USB hub. 3 laps of practice with no problems. Did half a lap in practice on the race server -> black screen. Simhub ended/closed, was able to drive the qualifying and race (5 laps of the Nordschleife) with no problems. So I would also rule out the flags as the culprit. I would rule out the rumble motors on the pedals because I have been using them for 3 months without any problems.
i changed the usb-cable and the usb-port from the flaggs i change the simhub Version to 9.6.0 no one helps. it is and remains the same, if I close Simhub, I have no problems