toshiba laptop bios screen on extended monitor not on laptop

Toshiba / P105-s6104
August 23, 2014 at 20:11:49
Specs: Windows 7, Intel T5500 @ 1.67 GHz/ 3GB
I updated the P105-S6104 BIOS to V 4.7, the latest version. I have an external monitor connected via VGA output as the secondary monitor, extended. The laptop display is the primary one. With the monitor connected, when I boot up the laptop, the start-up screen displays on the monitor and not the laptop. Depressing F2, the BIOS screen displays on the monitor. The only way I can get it to display on the laptop is to physically disconnect the monitor. With V4.4 of the BIOS, I did not have this problem.

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#1
August 23, 2014 at 20:19:01
Do the displays become extended when Windows loads?

If so, you may just have to stick with v 4.4 until a newer version comes out that will hopefully fix this.

Is there a reason why you want BIOS/Loading Screen to be extended?

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#2
August 23, 2014 at 20:33:49
Yes, once Windows kicks in the displays perform as expected. I really don't want the BIOS screen to be extended. I want it on the laptop. After writing this question I went back and revisited the BIOS looking for a display setting. The only one I could find was "Power on Display" with one of two settings: "Auto" or "Both". It was set to "Auto". I changed it to "Both" and exited the BIOS set-up screen. Both screens displayed the start up until Windows took over at which time the extended monitor went blank.I can live with this for usually the monitor is powered off until I need more display real estate. As long as it displays on the laptop monitor, that works for me.

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#3
August 24, 2014 at 13:47:08
Yeah, the bios upgrade may have reset some of the bios settings.

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#4
August 24, 2014 at 13:48:46
mmm...Didn't even consider that.

Yeah, I flashed my BIOS with the most recent version not to long ago - reset everything -kind of a pain as I do some light overclocking...

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