Windows font rendering issues - GoldenCheetah/GoldenCheetah GitHub Wiki

If you are experiencing rendering issues on Windows, especially if they are in user charts or an overview, it is likely caused by graphics driver issues.

Use of OpenGL vs ANGLE

Since Windows GPU drivers tend to have unreliable support for OpenGL, since version 3.6 we enable ANGLE support by default. ANGLE was developed by Google and converts OpenGL calls to DirectX primitives. In some, limited cases, this can cause some rendering issues or potentially slow performance.

To disable ANGLE and use OpenGL directly start GoldenCheetach with --no-angle as a command line parameter.

Virtualbox drivers

We have found that with Windows 11 the Virtualbox driver has problems rendering larger fonts when 3d Acceleration is enabled. To resolve issues please Disable 3D acceleration in the VM display settings.

Check display drivers

Lastly, please make sure you are using the latest display drivers for your graphics card. In version 3.6 we have more sophisticated graphics support and highly recommend using a dedicated GPU with the latests drivers as opposed to an onboard GPU (typically on laptop devices).