filda_33 Posted April 7, 2023 Posted April 7, 2023 Hello, fellow virtual pilots. I would like to share my sort of a weird experience with PC reboots when playing DCS with Motion Blur effect ON. After the recent Open Beta update..the one that came with Multi-Threading, my PC started to reboot randomly during gameplay. Initially, I could not really put my finger on it, I thought it was an MT bug or something, but it was the same in the non-MT version. After a few weeks of experimenting with various settings, I came to a conclusion, that the reboots are definitely caused by the Motion Blur effect (I had no logs or anything, obviously, due to the reboot thing). Which is sad...I am kind of a "screenshot-freak". Being a RL aviation photographer, I like to experiment with screenshots in DCS and the Motion Blur is a welcome effect, especially when it was significantly improved in one of the recent updates. With the Motion Blur OFF, my DCS is rock stable, even the MT version. Anyway...I don't really expect this to be fixed, I just wanted to put it out there and see if anybody has had similar problems with Motion Blur recently. But I assume this feature is not widely used...probably only by a few people who make videos and stuff like that. Regards, Phil
Flappie Posted April 7, 2023 Posted April 7, 2023 (edited) A number of users do use Motion Blur. Motion Blur asks your PC for more GPU resource in order to post-process frames. But your PC should not BSOD/reboot when asked for more GPU resource. Chances are you either have a GPU driver/motherboar/RAM issue, or a PSU issue. Edited April 7, 2023 by Flappie ---
filda_33 Posted April 8, 2023 Author Posted April 8, 2023 17 hours ago, Flappie said: A number of users do use Motion Blur. Motion Blur asks your PC for more GPU resource in order to post-process frames. But your PC should not BSOD/reboot when asked for more GPU resource. Chances are you either have a GPU driver/motherboar/RAM issue, or a PSU issue. Thank you for your input. I thought that too, and based on the data I provided, that would be a logical conclusion. However, Motion Blur is actually not very GPU hungry. I have stable 60 FPS (locked by Riva Tuner), the GPU - Nvidia 3080 12GB version - runs at about 70% with this effect on. The PC does not crash even when I turn on effects like the Depth of Field with Bokeh , which is much more GPU intensive. With the Depth of Field on, the FPS fluctuate, I can definitely hear the GPU fans working hard, yet there are no crashes. The PC literally crashes only while playing DCS the Motion Blur on, regardless of whether the other effects are on or off. MSFS in VR is also stable and that certainly puts the GPU to work.
filda_33 Posted June 12, 2023 Author Posted June 12, 2023 Interestingly, since the last update (2.8.6.41066) the crashes stopped. All good now.
filda_33 Posted July 31, 2023 Author Posted July 31, 2023 Back to square one. Update 2.8.7.42718, crash about 10 minutes after joining an MP server. Turned the MotionBlur off after the reboot, kept all other settings the same, including the Bokeh DOF - no problem. Something weird is happening here.
Flappie Posted July 31, 2023 Posted July 31, 2023 Do you have SSAA enabled? SSAA does not work in MT, and -I'm not sure about it, but...- it might cause issues when associated to Motion Blur. See NineLine's warning about both: ---
filda_33 Posted August 1, 2023 Author Posted August 1, 2023 Thank you for your input, Flappie, will check on the SSAA and report back.
filda_33 Posted August 2, 2023 Author Posted August 2, 2023 So the SSAA is off and actually has always been off. I will check the Motion Blur on in both Standard and MT version to see if there is a difference.
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