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
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 > _______________________________________________ > Nouveau mailing list > Nouveau at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/nouveau
I decided to install Nvidia driver and, while I borked the install, blacklisting nouveau seemed to fix VNC. I will retest again just to be certain, but thought of asking here first. Em 15/03/2016 19:06, "Ilia Mirkin" <imirkin at alum.mit.edu> escreveu:> 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 > > _______________________________________________ > > Nouveau mailing list > > Nouveau at lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/nouveau >-------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20160315/334f1932/attachment.html>