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-   -   Screen is very dark (https://www.linuxquestions.org/questions/linux-laptop-and-netbook-25/screen-is-very-dark-279810/)

Imerion 01-19-2005 02:25 PM

Screen is very dark
 
The screen on my "Digital Hinote Ultra 2" went black some days ago. It was flashing for a while and then it went black. However, I noticed that it weren't completely black ; it is possible to see text but it is extremely fain and can only be seen from certain angles. Does anyone know what the problem might be? I have tried changing the contrast settings and that does not help. Btw, this might be slightly of-topic since it does not have anything to do with Linux but I found no better place to ask...
Any help will be appreciated!

tamoneya 01-19-2005 03:25 PM

I don't think there is much of a way to fix this. You could try adjusting the contrast and brightness with the buttons on the monitor. Other than that i think your only option is to get another monitor.

Imerion 01-19-2005 03:27 PM

Adjusting contrast or brightness won't help. It seems the hardware has been set to a dark screen since there is nothing wrong with the screen. When I connect an external monitor, It is dark as well. So it has nothing to do with the screen. Perhaps is something on the motherboard...

tamoneya 01-19-2005 03:43 PM

Linux might be having a problem correctly detecting you monitor.
If it is not that difficult you might want to try reinstalling linux. This should clear any thing on your computer that went wrong.

Imerion 01-19-2005 03:46 PM

The problem is that since I can barely see anything, a re-installation is very hard to do. But I still think its a hardware-based problem. Otherwise the startup-sequence and the BIOS should atleast be seen right?

tamoneya 01-19-2005 03:58 PM

if it is a hardware problem more complicated then the screen i would just give up on it. Your graphics card could have broken or something. You could buy a new graphics card if you wanted to try to fix your laptop but i would scrap it.

Imerion 01-19-2005 04:01 PM

I guess I should give up. Asking here was kind of my last resort :)

tamoneya 01-19-2005 04:03 PM

Always happy to try and help out. It is pretty wierd however how your monitor failed. I would be interested in finding out what the problem was just for the fun of it.;)

Imerion 01-19-2005 04:05 PM

If you wish to try and solve the problem, ask away and Ill answer as good as I can. Perhaps we can narrow down the problem. :)

tamoneya 01-19-2005 04:18 PM

try reinstalling the driver for the graphics card. Without the screen it will probably be difficult so you might want to try removing the card, then booting up, shutting down and then putting back in. After that boot back up and it should detect the card and search for or ask for the driver.

Imerion 01-19-2005 04:20 PM

The problem is that the gfx-card is integrated in the motherboard. The only system on it for the moment is Freedos, which I was installing when the screen died. Perhaps it changed some driver?

tamoneya 01-19-2005 04:20 PM

you could also try to use different resolutions and refresh rates. Try to use the lower ones. I am guessing that the card is slowing not able to keep up any more and is therefor not able to provide enough information to the monitor. Were you overclocking?

Imerion 01-19-2005 05:31 PM

No, I have not been overclocking. And as I said, the boot-sequence is pure text-mode which should be displayed well.

Imerion 01-19-2005 05:57 PM

I think I realized what the error is! I turned of all light in the room and looked at the screen and then I saw nothing. However, under bright light, the text is sligtly visible. The conclusion I came up with is this : the backlit has broken down! Do you think its possible? If so, how to fix it?

tamoneya 01-19-2005 07:43 PM

I thought that it did not work on the screen and a external monitor when you attach it. If this is true than it can not just be part of the screen that is broken. Maybe the graphics card is not telling the screen to use the backlight.

tamoneya 01-21-2005 04:13 PM

are you multi-booting? If you are maybe try to boot using different OSes and see if it has any effect on the screen. If so it would mean that there is a driver problem somewhere.

Imerion 01-22-2005 08:47 AM

It has nothing to to with drivers Im afraid. Its dark all the time, even the bios-text at the beginning.

tamoneya 01-22-2005 02:09 PM

But why is the backlight broken on the regular monitor and the external one that you tested?

jonr 01-22-2005 02:20 PM

It sounds like the backlight gave out, but in that case why would a second monitor also show up dark?

My guess is that your graphics card is faulty, perhaps as result of a power surge. It's easy to burn out only one component of a computer with a power surge--it happened to me with a nearby lightning strike that took out my SBC-supplied DSL modem and also the Ethernet card it was attached to. Nothing else in the computer was damaged.

If it wasn't a laptop I'd suggest borrowing a graphics card from a friend to see if it would work. But that wouldn't be feasible in most laptops.

The flashing before the darkness occurred doesn't sound good to me, and is the main reason I think the graphics card is damaged.

Imerion 01-23-2005 04:07 PM

Sounds possible. It is most likely the graphics-card. Perhaps I could open it and check if there is anything visible. If there ain't though, I guess there is nothing I can do. Perhaps leave it for repair somewhere...


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