On Apr 9, 6:19*am, TomC wrote:
Try changing the refresh rate or the display driver for the screen display. *
Seems like the OS is loading something that the tv doesn't understand.

With this in /etc/X11/xorg.conf the refresh rate is still 94 Hz.

Section "Monitor"
...
VertRefresh 60.0
EndSection

Can VertRefresh be set on the laptop display; is it wired to 94 Hz?

I'll check with the scope as suggested by hrhofmann and mike and if
necessary resort to the method of Adrian C.

Thanks to everyone, ... Peter E.
peasthope at shaw.ca