If you are using , gdi16.hdi is obsolete and not used by default. Its appearance indicates:
Newer versions of AutoCAD (2022 and later) default to DirectX 12. If your GPU only supports DirectX 11 or older, it may fail to load the driver, defaulting to the gdi.hdi software driver. autocad virtual device gdi16.hdi
: Files such as the CertificationDB.xml may be missing or damaged. If you are using , gdi16
If you want, I can:
Newer versions of AutoCAD (2022 and later) default to DirectX 12, which can cause some older or mid-range GPUs to fail, forcing the software-based fallback. Autodesk Community, Autodesk Forums, Autodesk Forum How to Fix or Bypass It : Files such as the CertificationDB
: In AutoCAD, go to Options > Files tab. Expand Device Driver File Search Path and ensure it is set to C:\Program Files\Autodesk\AutoCAD 20xx\drv .
is disabled or failing to initialize. Common causes include: Disabled Hardware Acceleration: