[Bug 113841] New: Severe screen flickering and tearing over VNC connections

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=113841

            Bug ID: 113841
           Summary: Severe screen flickering and tearing over VNC
                    connections
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.4.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: da_audiophile at yahoo.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 207881
  --> https://bugzilla.kernel.org/attachment.cgi?id=207881&action=edit
screen grab of the vnc connection

Details:
Upon connecting over vnc to an Xorg server (in this case running Kodi), the
resulting video flickers and tears quite severely.  An example screen grab of a
vnc session attached to illustrate what I am seeing is attached.  In the past
such connections have been very smooth and pleasant.  I see nothing diagnostic
in the output of dmesg nor in the output from my vncserver.  I can confirm the
behavior with both the x11vnc package and the x0vncserver supplied with
tigervnvc.

Glad to supply any diagnostic logs upon request.


Distro:
Arch Linux x86_64

Hardware:
Intel(R) Core(TM) i3-4130T with on board video.
Motherboard: MSI H97I AC (latest BIOS)

Video drivers and xorg version:
xf86-video-intel 1:2.99.917+560+gd167280-1
libva-intel-driver 1.6.2-1
xorg-server 1.18.1-3

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