Disable Write Combine mapping of VRAM
configname: CONFIG_DRM_MGAG200_DISABLE_WRITECOMBINE
Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Disable Write Combine mapping of VRAM
In linux kernel since version 6.11 (release Date: 2024-09-15)
The VRAM of the G200 is mapped with Write-Combine to improve
performances. This can interfere with real-time tasks; even if they
are running on other CPU cores than the graphics output.
Enable this option only if you run realtime tasks on a server with a
Matrox G200.
performances. This can interfere with real-time tasks; even if they
are running on other CPU cores than the graphics output.
Enable this option only if you run realtime tasks on a server with a
Matrox G200.