Problem computer tv hdmi

i connect my pc to lcd 42" via hdmi cable
my desktop appear on tv but after a few minutes it's disappear and then appear again
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More about problem computer hdmi
  1. update your video card drivers and force detection from the driver suite and set up your monitors.
    i've seen lots of different issues with HDMI,,, but this sounds like it is trying to figure out the resolution, etc.
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