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Display of Inspiron 1420 deems when I remove external power

Please help me. I got an Inspiron 1420 yesterday.

Laptop works fine when it is on AC supply. But when I remove the power and operate it on battery mode, display gets deem. I checked with windows vista setting, it is on high performance setting, i.e. at the same brightness for battery and plug-in mode. But not getting the same brightness on battery mode. What should I do?

Message Edited by super_nilesh on 10-26-2008 01:39 PM
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Re: Display of Inspiron 1420 deems when I remove external power

It is normal for the screen to dim when running on battery. I am not sure if the key stroke is the same as my 1720 but what I do is press and hold the FN key and then my up arrow brightens the screen and the down arror dims it. On other models the keys are tied to some of the F keys. Look for 2 keys that have a picture of the "sun" on them, use them with the FN key and you can change the brightness when you are on battery.

 

Here is a LINK to the info within the User manual.

Message Edited by dcgtls on 10-26-2008 12:11 PM

Alienware Aurora R4: i7-3820, 8GB, 10TB of HDD, AMD/ATI Radeon HD 7800, Samsung 27" monitor

XPS 730x: i7 920,   Replaced with an Alienware Aurora R4

XPS 410: Core 2 Quad 2.4GHz (Q6600) , 6GB, EVGA 8800GTS 640MB,
Single TV Tuner , X-Fi Xtreme Music, Logitec X530 Speakers

Latitude 10 Tablet

Inspiron 1720: T7500, 4GB, 120GBx5400, 120GBx7200, 8600GT, DVD+/-RW, Bluetooth,
Windows 8.1

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Re: Display of Inspiron 1420 deems when I remove external power

Hey, Thanks for your reply.

But I have tried adjusting brightness with this key Fn+up on battery mode. Brightness increases, but it never matches with the brightness while on the AC power mode. I have seen one more Inspiron 1420, but that works fine. Problem is with my machine or settings. What to do?

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Re: Display of Inspiron 1420 deems when I remove external power

Hi, I have the same problem on my Inspiron 1420 with Vista and the standard intel video adapter

I can change the brightness using the Fn+up/down but the brightness never matches the brightness level when using power. This has only started to happen in the last few weeks (maybe after taking a dell recommended video card update???) and is really annoying! Did you find a solution? Is this a common problem?

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Re: Display of Inspiron 1420 deems when I remove external power

I just bought an Inspiron 1410 yesterday, and I have exactly the same problem as you guys have. Have tried many advance setting but still can't resolve the problem, I have to contact their technical support for on site service. Dell quality control has to improve.

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Re: Display of Inspiron 1420 deems when I remove external power

I just purchased 1420 on 12/7/08 and had the same problem with screen brightness when power unplugged, as mention in earlier post. Since I have other Dell laptops , I knew this was uncommon. The fix I found was adjusting the video brightness in the BIOS at boot-up. To do this: Press and hold F2 while pressing "power on" button. You will see Bios blue screen with "systems info". Use arrow down key till you get to" video", then press "enter". Arrow down again to "brightness" (without AC). My 1420 was set at 3. I adjusted with arrow key to maximum of 10. Then press "enter". Read instructions at bottom of screen and "press Esc to exit setup". Then arrow to "exit" (is highlighted in green) and press enter. This solved my problem with screen staying dimmed when unplugged. I should also say that you can still modify screen birghtness in battery mode , by adjusting the display brightness in the "power settings". You should not have to go back into the BIOS again. Hope this helps.
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Re: Display of Inspiron 1420 deems when I remove external power

Thank you so much for your help with this. I just got my Inspiron 1420 and had the same problem.  I followed your instructions and made the above changes in the BIOS and all is working now! Thanks!

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Re: Display of Inspiron 1420 deems when I remove external power

I have had my laptop for months and this problem has annoyed me for that long. Thank you so much for your reply; It helped me to finally solve the problem. I can see my laptop screen! I can see. LOL.:emotion-21:

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Re: Display of Inspiron 1420 deems when I remove external power

You are my hero.  It worked like a charm!  Very easy and exactly what I needed to fix the problem.

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Re: Display of Inspiron 1420 deems when I remove external power

You are the best!!!! Thank you so much for taking the time and effort to post. You are not going to believe this story!!

I also purchsed a new inspiron 1420 for work 12-22-08.

Very soon I discovered the problem with the display when on battery power and could not adjust it with any of the available programs. I contacted Dell support and spent no less than a week fighting with them over the problem, when they determined that my hard drive was corrupt. They (technical support) could not adjust the brightness of the screen on battery power either. After another long battle they sent me a new computer.

Out of the box it also had the same dim screen on battery power! I was so discouraged, as I have to use this lap top on battery power for my work and there was absolutly no way to see the screen in battery mode.

As of today I have not only corrected the display problem on the "new" laptop, but also on the "corrupted" computer that is due to be returned.

Again thank you so much for your help!

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