Hopefully it will be resolved in 15.6!

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(I did not mentioned that my server is a Debian Stable machine running Headless.) To reproduce the desync: throw some fuel rod inside the reactor (1 is enough) by hand or by the automatic system (disabled to avoid "unwanted" desyncs). The majority of clients will desync after half second. ...

When I turn on a small nuclear reactor in my server one or more players keep crashing until the temperature has gone back to 500°. I am absolutely sure of this, I have tried a lot. My map is big about 6-7MB to download the first time but, when the game tries to reconnect, it becomes more than 20MB. ...

With great pleasure I can say that today, with the version 15.1, all problems are gone! We still don't know why, but it doesn't matter: it's great anyway to play Factorio.
Thanks to every one!

Since you tried the usual stuff already, I would test if other games have the same issue. I can run Dota2, Counter Strike, Rust, Minecraft (heavy modded), Kerbal Space Program (heavy modded), OpenTTD (with graphic mods) and a variety of other games without problems so far. I have tried the standalo...

I notice only now: is it common that the gui rendering took 60% of the rendering time? Or had I misunderstood those numbers?

I have only one screen not rotated and now I tried with compositing feature disabled but it does not change.
My video drivers are at the last version but even with some older version the problem persists.
I made a screen of the GPU stats window where is shown the usage.

Hi everyone! I have a i7 920 with 6GB DDR3 RAM and GTX750Ti (378.09) running Ubuntu (kernel 4.4.0-59). The game run always with 60UPS but <25FPS. It does not matters which game mode I play or what map I load, even on a fresh start the game runs slow. I have tried to change driver's version, every si...