bonsoir
voici un exemplaire de mon fichier log
je suis passé à la version 16.43 entre temps mais pas d'améliorations

entre les deux groupes de textes se trouvent 270 000 lignes disant :

   d3d_flush_vertex_cache: DrawPrimitive failed.

Le fichier log parle d'une dll d3dx9 mais mon directx est à la version maximum
et le fichier est bien dans le répertoire system32
je ne sais pas ou chercher

merci pour vos réponses

   0.012 2018-06-18 17:41:08; Factorio 0.16.43 (build 36482, win64, alpha)
   0.012 Operating system: Windows 7 Service Pack 1
   0.012 Program arguments: "C:\Factorio.v0.16.43\bin\x64\factorio.exe"
   0.012 Read data path: C:/Factorio.v0.16.43/data
   0.012 Write data path: C:/Factorio.v0.16.43 [3283/58315MB]
   0.012 Binaries path: C:/Factorio.v0.16.43/bin
   0.028 System info: [CPU: Intel(R) Core(TM)2 Duo CPU     E7300  @ 2.66GHz, 2 cores, RAM: 1116/5110 MB, page: 1195/10218 MB, virtual: 95/8388607 MB, extended virtual: 0 MB]
   0.028 Display options: [FullScreen: 1] [VSync: 0] [UIScale: system (100.0%)] [MultiSampling: OFF] [Screen: 255] [Lang: fr]
   0.029 Available display adapters: 1
   0.029  [0]: \\.\DISPLAY1 - Intel(R) G33/G31 Express Chipset Family {0x8000005, [0,0], 1920x1080, 32bit, 60Hz}
   0.029 Create display on adapter 0. Size 1280x720 at position [310, 162].
   0.147 D3DPRESENT_PARAMETERS: fmt=0x16{0x17}; w=1920,h=1080,Hz=0; ads=0;pi=0x80000000;ms=0;swap=1;flags=1
   0.147 CreateDevice(HAL, D3DCREATE_HARDWARE_VERTEXPROCESSING) failed: D3DERR_INVALIDCALL[-2005530516]
   0.164 Failed to load D3DX9 library. Library is not installed.
   0.179 Initialised Direct3D:[0] Intel(R) G33/G31 Express Chipset Family; driver: igdumd64.dll 8.14.10.1930
   0.182   Video memory size (dedicated video/dedicated system/shared system/available): 0/64/192/240 MB
   0.182 Non-power-of-two texture sizes are NOT SUPPORTED!
   0.369 DSound: Starting _dsound_update thread
   0.369 DSound: Enter _dsound_update; tid=3464
   0.369 Device reset internal.
   0.372 Desktop composition is active.
   0.372 The largest texture size supported by graphics cards it very low (2048). Setting graphics preset to Low.
   0.373 Graphics options: [Graphics quality: normal] [Video memory usage: low] [Light scale: 25%] [DXT: false] [Shader: 1]
   0.373                   [Parallel sprite loading: 1] [Max texture size: 0/4096] [Bmp cache: 0] [Sprite slicing: 1] [Low quality rotation: 1]
   0.549 Loading mod core 0.0.0 (data.lua)
   0.582 Loading mod base 0.16.43 (data.lua)
   0.814 Loading mod base 0.16.43 (data-updates.lua)
   0.891 Checksum for core: 1977895552
   0.891 Checksum of base: 2820252226
   1.081 Loading sounds...
   1.447 Info PlayerData.cpp:65: Local player-data.json available, timestamp 1529328812
   1.447 Info PlayerData.cpp:72: Cloud player-data.json unavailable
   1.828 Insufficient shader model 2.0, NumInstructionSlots: 96. Shader is disabled.
   1.857 Initial atlas bitmap size is 2048
   1.884 Created atlas bitmap 2048x2042 [none]
   1.909 Created atlas bitmap 2048x1553 [none]
   1.936 Created atlas bitmap 2048x2046 [terrain]
   1.939 Created atlas bitmap 2048x203 [terrain]
   1.943 Created atlas bitmap 2048x220 [shadow]
   1.968 Created atlas bitmap 2048x1988 [no-crop, trilinear-filtering, icon, light]
   2.144 Created atlas bitmap 2048x1876 [no-crop, trilinear-filtering, icon, light]
   2.157 Created atlas bitmap 2048x952 [alpha-mask]
  53.032 Sprites loaded
  53.032 Convert atlas 2048x1988 to: trilinear-filtering
  53.159 Convert atlas 2048x1876 to: trilinear-filtering
  53.285 Convert atlas 2048x952 to: alpha-mask
  53.808 Custom inputs active: 0
  54.077 Factorio initialised
114.464 Loading map C:\Factorio.v0.16.43\saves\_autosave2.zip: 6078123 bytes.
114.630 Loading Level.dat: 11169942 bytes.
114.636 Info Scenario.cpp:136: Map version 0.16.43-0
115.767 Loading script.dat: 175 bytes.
115.811 Checksum for script C:/Factorio.v0.16.43/temp/currently-playing/control.lua: 2661064125
419.160 Info AppManager.cpp:260: Saving to _autosave3 (blocking).
420.225 Info AppManagerStates.cpp:1638: Saving finished
721.881 Info AppManager.cpp:260: Saving to _autosave1 (blocking).
723.066 Info AppManagerStates.cpp:1638: Saving finished
1033.806 Info AppManager.cpp:260: Saving to _autosave2 (blocking).
1034.808 Info AppManagerStates.cpp:1638: Saving finished
1340.565 Info AppManager.cpp:260: Saving to _autosave3 (blocking).
1341.545 Info AppManagerStates.cpp:1638: Saving finished
1641.708 Info AppManager.cpp:260: Saving to _autosave1 (blocking).
1642.913 Info AppManagerStates.cpp:1638: Saving finished
1942.878 Info AppManager.cpp:260: Saving to _autosave2 (blocking).
1943.809 Info AppManagerStates.cpp:1638: Saving finished
2270.687 Info AppManager.cpp:260: Saving to _autosave3 (blocking).
2271.725 Info AppManagerStates.cpp:1638: Saving finished
2578.610 Info AppManager.cpp:260: Saving to _autosave1 (blocking).
2579.656 Info AppManagerStates.cpp:1638: Saving finished
2926.274 Info AppManager.cpp:260: Saving to _autosave2 (blocking).
2927.550 Info AppManagerStates.cpp:1638: Saving finished
3228.879 Info AppManager.cpp:260: Saving to _autosave3 (blocking).
3229.987 Info AppManagerStates.cpp:1638: Saving finished
3549.495 Info AppManager.cpp:260: Saving to _autosave1 (blocking).
3550.464 Info AppManagerStates.cpp:1638: Saving finished
3564.554 Info AppManagerStates.cpp:1638: Saving finished
3659.294 d3d_flush_vertex_cache: DrawPrimitive failed.

+ 270 000 lignes comme la suivante
-------------------------------------------------
3671.208 d3d_flush_vertex_cache: DrawPrimitive failed.
-------------------------------------------------

3673.156 DSound: Stopping voice
3673.156 DSound: Joining thread
3673.156 DSound: Exit _dsound_update; tid=3464
3673.156 DSound: Waiting for voice to stop ... signaled
3673.156 DSound: Joined thread
3673.156 DSound: Destroying thread
3673.156 DSound: Thread destroyed
3673.156 DSound: Releasing buffer
3673.167 DSound: Voice stopped
3673.167 DSound: Deallocating voice
3673.167 DSound: Deallocated voice
3673.581 Goodbye