CRT Monitor will not display CMOS

May 5, 2011 at 19:03:39
Specs: Windows XP SP3
Dell laptop with CRT Monitor fails to display BIOS Menu (F2) at start up but CRT will display at windows log in screen.

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#1
May 5, 2011 at 20:02:44
I think that is normal behavior. Your advanced functions on your graphics card don't kick in until Windows is loaded.

You MAY be able to set the external monitor as your primary display though.


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#2
May 6, 2011 at 06:06:58
Thanks for that important tip. Other forums suggested the lowering of res/rates but that would be futile if, as you say, the graphics card does not activate in post windows....

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#3
May 6, 2011 at 06:52:53
The BIOS is driving the graphics when in the POST/BIOS mode. So changing the resolution in Windows will not have any affect on it. I suppose if the GPU was designed to perform a certain way the POST screens could show on a second display. Perhaps some do. Laptops may not work the same way as desktops though.

The BIOS is OS independent. That is by design. That is why there are settings in the BIOS(ACPI) to hand off hardware configuration to the OS if it is capable. Most, if not all, modern versions of OSes that can run on a PC are capable of configuring the hardware. If they weren't you wouldn't be able to have so many devices. Devices now can share resources (IRQs).


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#4
May 6, 2011 at 09:46:16
Thank you very much for that info. You have explained very well how it all works. I imagine IF I could get into the BIOS I might have the opportunity to adjust the settings.....Again thank you for your excellent reply....

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#5
May 6, 2011 at 10:05:22
Why can't you get into the BIOS (setup)?

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#6
May 6, 2011 at 10:10:53
The CRT does not display anything until Windows starts (windows log in screen). The LED laptop monitor has a failed CCFL and the only way to see anything on it is with a flashlight and only a partial screen is barely visible. So without display of Bios Menu I cannot make any adjustments to the BIOS settings

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#7
May 6, 2011 at 10:19:28
Post the full model number of your Dell laptop.

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#8
May 6, 2011 at 10:25:28
Dell Inspiron 6000 (year 2005);Dell lbl p/n 15896 A01; BIOS version A03 (1-12-2005)

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#9
May 6, 2011 at 10:28:45
Model PP12L

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#10
May 6, 2011 at 10:38:15
Well hunting for BIOS details I came across something that may help you. Check out the threads below.

http://forums.techarena.in/portable...

http://www.fixya.com/support/t38014...



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#11
May 6, 2011 at 10:51:00
I checked them out but nothing related to CRT and BIOS. Most of the forums I have reviewed are concerned with issues of screen blackouts but nothing dealing with the BIOS Menu. One solution is to repair the CCFL but here in Guatemala they want between $80 and $100 for the bulb (out of my budget) that is why I switched to a CRT monitor. I'll keep surfing the forums hopefully out of the millions of techs out there somebody has encountered and solved this problem...Thanks for all your input........

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#12
May 6, 2011 at 10:55:10
The reason I posted those links was because I thought there was a possibility the problem was not the backlight. Are you sure it is the bulb. Might be worth trying the simple fix described there. Seems like that is an issue with your model.

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#13
May 6, 2011 at 11:06:54
I removed the LED screen and hooked up another LED panel from a scrapped HP laptop and the panel illuminated just fine..which means the inverter is okay...I then removed the bulb and it is burnt out..Microsoft suggested that my problem has nothing to do with Windows (I agree) and from DELL I get no response cause my comp is outdated. So I pray I never have the need to use F2, F8, F12 menus until I can afford a new CCFL

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#14
May 6, 2011 at 11:51:35
OK then, you are more capable than most posters here. Dell manual leaves a lot to be desired. No details on any BIOS settings there.

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#15
May 6, 2011 at 12:02:36
So very true about Dell support but must admit the laptop has lasted all this time without problems and considering it was a freebie (hand-me-down) I can't complain.

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#16
May 6, 2011 at 12:42:51
Maybe you can find something in the link below.

http://www.intel.com/design/chipset...


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#17
May 6, 2011 at 13:03:34
Very similar to ATI but no solutions yet. Found this link http://www.viaarena.com/forums/show... Working on it now. Has possibilities........

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