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I always assumed the VideoBIOS runs on the GPU, but if I understand you correctly this is code run on the CPU?
by sebazzz 7y ago
I always assumed the VideoBIOS runs on the GPU, but if I understand you correctly this is code run on the CPU?
- floatboth 7y agoYes — "VBIOS", and these days mostly "UEFI GOP driver", is code that runs on the CPU and allows the system firmware to initialize the card and preset video output before any operating system is booted. Without it, you cannot enter the setup screen graphically, only over a serial port :D
- ComputerGuru 7y agoYes, the PC (or whatever) hands off control of the entire system to the VideoBIOS which must do its thing and then pass control back.