hybrid-graphics-linux team mailing list archive

[Jérôme Petazzoni <jerome.petazzoni@xxxxxxxxxxxx>]

On my Dell Latitude 6420 (Intel HD3000 + Nvidia NVS4200M), it seems that:
- the LVDS panel is obviously wired to both GPU;
- the VGA output on the laptop is wired to the Intel GPU;
- all HD outputs (HDMI on the laptop, DVI and DP on the docking station) 
are wired to the NVidia GPU.

When using the Intel driver on Linux (or before installing the Nvidia 
driver on Windows 7), I only see the LVDS+VGA output.
Installing the Nvidia driver on Windows 7 gives me the option of using 
the HDMI port.
Disabling Optimus (which turns off Intel GPU) and using Nvidia 
proprietary driver shows HDMI and DP outputs (but the 27" attached 
screen seems to be locked in an average resolution, and no configuration 
tweak seemed to make it use it's full rez).

How does it work on your laptops, guys? Can you hook up an external 
screen on any port and use it with both GPUs, or do they seem hard-wired 
like mines?