There is a higher than normal number of lockup issues with the 1070 processor. Although, I also had the same lockup problems with the 1060 (but se it’s the same generation, maybe both have the problem).
With that said, after I shut down every non-essential Windows service, my lockup problems stopped. So, it would seem to be a conflict. But, Zwift also seems uninterested, unwilling, or unable to look into this problem, so we’re left to trying everything possible to get around a problem which is clearly with Zwift.
Same issue here, it started for me after September 2022. Have i7 and older Nvidia 660GTX.
Before last summer, have been running Zwift for about 2 seasons without crashes.
Also tried every known workaround with no help. Now negotiating with Zwift support, will see.
Maybe I will start to disable GPU functions one by one to do some testing . But I still suspect it is not due to graphics, at least not just GPU, maybe some kind of combination network / video processing etc. Who knows? Hope they will figure it out on Zwift side, since this is huge issue. They should work “ALL IN” on this.
If the app or computer crashes when running Zwift on Windows, check the Event Viewer to see if it provides a clue about the reason. Memory requirements have gone up and graphics performance has gone down, for some users. You might also get better support from the ZPCMR Facebook group.
[quote=“Paul, post:468, topic:379588, full:true, username:Paul_Southworth”]
If the app or computer crashes when running Zwift on Windows, check the Event Viewer to see if it provides a clue about the reason. Memory requirements have gone up and graphics performance has gone down, for some users. You might also get better support from the ZPCMR Facebook group.[/quote]
We’ve done this, and posted what the problem is many times. Also, this is a Zwift bug, a Facebook group can’t fix the Zwift code.
For me, I left all GPU settings the same. What I did to stop the crashes was to disable unused Windows services. I don’t know which one fixed it, as I didn’t have time to test each one and have my rides crash all the time.
With my MSI GeForce GTX 1070 GAMING X 8G videocard in my Zwift setup I tried all i could to get a stable setup. This did not work. It seemed weird as this setup had been working for 6 years with me using Zwift 2-3 times a week. Also all Zwift crashes just crashed the Zwift game while the PC seemed to operate normal.
Windows logs would always show an OpenGL TDR error which is in line with what I saw. I.e. I always saw Zwift freezing and then exiting to the Windows desktop.
I now swapped Nvidia GTX 1080 videocard between my main PC (where I am typing now) and the Zwift setup. As both cards are Nvidia GTX 1000 series I didn’t manually change anything with settings or drivers. Installed drivers automatically detected the new card and I let it do a ‘clean’ reinstall.
With the GTX 1080 card Zwift has been stable for hours on an end something that didn’t happen for a month with the GTX 1070 card. Also the PC i’m typing now has been stable since the swap. To me this confirms it is a Zwift software Open GL problem with specific video cards…
well of course i’m never 100% sure. My Zwift PC only runs Zwift as OpenGL application and last month(?) I would be lucky to finish a ride. I got use to using FitFileTools to recover the Zwift fit files.
What annoys me most is that there is 0,0 feedback from Zwift apart from some useless general tips that were hardly related to my actual problems.
E.g. in the last logfile I sent Zwift the Nvidia driver is logged in the first part of this logfile. I sent this logfile after I installed the latest NVidia driver (after first using Display Driver Uninstall). Still Zwift advised me to check if my videocard driver is up to date thus it is clear they actually don’t care looking into the logfile.
After that I swapped videocards. As per your suggestion now testing the GTX 1070 with Furmark. So far the GPU rendered over 55000 frames with 0 OpenGL errors and warmed up till 80°C with fan at 75%. I would have expected Zwift to ask me to run this stress test
Yes it also worked fine on my GTX 1070 for years. Only after upgrade to Windows 11(?) it became problematic. I did suspect the videocard hardware but Zwift was not helpfull at all. Right now that the GTX 1070 is working in my other PC i doubt it was a hardware issue.
I had the same card a while back with TDR errors under windows 10. Did the same thing in multiple PC’s but only with zwift. Figured it out in the end and zwift would always crash if the GPU was below 50’c.
Set max performance in the nvidia drivers (power mode) so it would sit about 50’c at idle and zwift would then startup fine.If you are crashing after running zwift for 5 minutes its not the same bug but try the power mode anyway.
It was the most odd bug i’ve ever seen with a GPU and a single game.
For sure, I wasn’t suggesting everyone with a 1070. But, if you look back at the posts, many are with 1070 or 1060 GPUs, which suggests that’s where the conflict is.
I’m a hardward/software developer, I know how to diagnose a problem. I ran furmark and prime95 at the same time on both cards overnight with no problems. With Zwift, it would crash within an hour, sometimes in 5 minutes.
I could even run a stress test on both cards in the same system at the same time overnight with zero errors. But Zwift would crash all the time. Absolutely a Zwift bug.
Same here, cards works fine on other syayems, but not with Zwift. Also, I don’t think it’s a Windows 11 thing as I’m also having crashing problems on Windows 10. It did, however, start happing between the spring and fall of 2022, which maybe coincidently coinsides wirh your problem.
Did the driver reinstall with DDU, set the power performance to MAX and today rode without crash. But that means nothing yet, since it can crash tomorrow or the day after etc. As we know the crashes are random. So will see in the future rides. Will post here any news and findings…
it might be an issue of Zwift starting from a specific Nvidia driver. Before Win11 I did not actively update my Zwift PC apart from normal Windows updates. After upgrading to Win11 I downloaded the latest NVidia driver and repeated reinstalling the latest NVidia driver several times after that. Zwift never ran relible after that. Sometimes it would freeze and exit after 5 minutes, sometimes I could finish an one hour ride and at other rides it would quit after two hours.
