9
1
We have a large TV at work - I connect my laptop to it to share my screen during meetings. Until today, my laptop display has been duplicating to the TV automatically when I connect the TV cable to the laptop. The display resolution would decrease automatically to be compatible with the TV.
Today, however, it's stopped working. When I connect the cable to the TV, the display extends rather than duplicating. Using the Win+P key combination (or Fn+F7 on my Lenovo laptop), I can choose to duplicate the display - but when I do this, it ends up only displaying on the laptop. I can get it to display on the TV by hitting Win+P and choosing "projector only", but then I can't see what I'm doing on the laptop screen.
I have a Lenovo W520 laptop running Windows 7, connected to the TV using a DisplayPort-to-HDMI converter cable. The TV's native resolution is 1280x720; the laptop's native resolution is 1600x900.
I've tried booting with the TV cable already connected; I've tried manually lowering the display resolution on the laptop to 1280x720 before duplicating the display. Neither works.
Does anyone have any other suggestions?
1This worked for me too with nvidia. Right-clicked display 2 and selected "clone with > 1". Then hit apply... BAM! – Rafe – 2015-02-20T16:27:50.960
Thanks - I'm away from the office now but I'll try this tomorrow. The graphics card is an Nvidia Quadro 1000M. I see the multiple display options in the Nvidia control panel, I'll see if that works. – rbeier – 2011-09-07T03:15:23.647
3Thanks - this worked. I went into the "set up multiple displays" section of the Nvidia control panel. Under "2. Drag the icons to match your display configuration", I right-clicked the TV (display #2) and chose "Duplicate with 1 (use 1 as source)". It seems to be remembering these settings now. – rbeier – 2011-09-08T01:21:49.013