2 Replies Latest reply on Dec 17, 2010 6:48 AM by alberto.bacchetta

    IC Station/ICgraph flashing like a strobo light in A Clockwork Orange

    alberto.bacchetta

      Dear All,

      I'm asking your advice about a slightly annoying flash effect, which is going to make me blind in a matter of days, happening with ICStation/ICGraph v2008.2_11.1 (running on Redhat linux) every time the cursor is moving on the layers of a layout cell.

      We also played with the MGC_DISABLE_BACKING_STORE variable,unfortunately,without effect.

       

      Many thanks in advance for your suggestions

       

      Alberto

        • 1. Re: IC Station/ICgraph flashing like a strobo light in A Clockwork Orange
          chris_balcom

          Hi Alberto,

           

          I haven't seen this myself but here are some notes from someone else:

           

          ---------------

           

          On my RedHat 4 machine, I need to add a setting to the
          /etc/X11/xorg.conf file.

           

          So goto Section "Screen" and in the SubSection "Display" which
          corresponds to your screen size/color depth add the following line:

           

          Option "backingstore"

           

          So mine looks like this:

           

          **********************************

           

          Section "Screen"
          ...

           

              SubSection "Display"
                  Depth    24
                  Modes    "1280x1024"
                  ViewPort    0    0
                  Option    "backingstore"
              EndSubsection
          EndSection

           

          **********************************

           

          You now need to restart the machine for these changes to take effect...

           

          Also please check that you do NOT have an environment variable
          MGC_DISABLE_BACKING_STORE set..

           

          I now get NO flicker when the popup info occurs... I've tested on RHEL3
          (this lives in the XF86Config file), and on RHEL4.  Both accesed either
          direct (in a VMWare partition) or via VNC.

          • 2. Re: IC Station/ICgraph flashing like a strobo light in A Clockwork Orange
            alberto.bacchetta

            Thank you very much,Chris

             

            (it was backinstore variale left behind during the installation)