hybrid-graphics-linux team mailing list archive

[Albert Vilella <avilella@xxxxxxxxx>]

I have the same behaviour as you: HDMI with the binary drivers gives
me a rather fuzzy display on the external screen, but
it did work a couple of times after rebooting the system, plugging the
hdmi cable, _then_ detecting it with nvidia-settings... Weird...

On Tue, May 3, 2011 at 10:49 PM, Jérôme Petazzoni
<jerome.petazzoni@xxxxxxxxxxxx> wrote:
> 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?
>
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