Hello,
I have a question with regards to the libdrm library. I'm currently working on an app that relies on KMS, DRM and EGL to output accelerated graphics without a display server in between. It does so to reduce input latency. The system this app will run is connected to a CRT monitor and I'd like to be able to switch resolutions in order to use the best resolution depending on the input of the user and do so as fast as possible. I understand that this might pose problems to the user but it will run on a custom installation of Linux devoted just to this application. It doesn't need to interact with other apps at all.
The problem I have is that I haven't found info on how I would go about doing this with libdrm. I need to be able to set custom timings to drive the display, since it's not just about driving the monitor with standard resolutions. This monitor doesn't report correct EDID info and won't report it either. Currently it's using a single default resolution I baked in, but the idea is to be able to switch between them.
I know that this is possible by drivers, I've seen examples in the drivers themselves, but I still haven't been able to make the connection since the documentation on the specific calls, functions and structures is sparse.
I'd appreciate any help you could give me or any pointers.
Best regards,
Alberto
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