[Nouveau] VNC on Optimus systems (is|may be) broken

[Ilia Mirkin]

On an optimus system, the display is normally driven by the intel GPU.
What makes you suspect nouveau is involved at all?

On Tue, Mar 15, 2016 at 3:02 PM, Pedro Francisco
<pedrogfrancisco at gmail.com> wrote:
> Hello!
> I'm investigating a case where x11vnc (or RealVNC server or vino) on a
> _real_ X11 server seems to be broken with any VNC viewer.
>
> By broken I mean: it seems to keep old frames in memory, in such a way
> that in every three frames, two are from the past and one is the
> current one.
>
> This is easily spotted when using gnome-shell and looking at the clock
> at the top. Besides being 'old', the pictures are "pixel-perfect" and
> not corrupted in any way.
>
>
> So, here am I trying to debug it.
> Do you have anything to suggest I check before re-running the test?
> (namely, blacklisting nouveau and rebuilding initramfs and check if
> the problem is gone).
>
>
> P.S.: virtual VNC servers are _not_ broken.
>
> Thanks in Advance,
> Pedro
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