Unsolved
This post is more than 5 years old
4 Posts
0
59428
Latitude E6400 LED display problem
I have just received my E6400. I am having this issue which happsns sometimes. The computer has a WXGA+, LED backlit display. I have VISTA Business installed. The problem is that the LED display shows uneven distribution of backlight from the bottom of the screen. Please see the pictures.
http://i40.tinypic.com/10zwgw4.jpg
http://i42.tinypic.com/mrsacp.jpg
The thing is that this happens only when it wakes up from the sleep or hibernation mode. I restart the system, it does not happen. When this does happen, the screen completees turns to white, shows some lines for a second or two. I do not know what the problem is...Graphics card (dedicated NDIVIDA?). I do not think this is a hardware problem because the screen is, otherfwise, fine.
I hope to find the solution here!
ejn63
9 Legend
9 Legend
•
87.5K Posts
0
March 22nd, 2009 18:00
Since it's brand-new, I would not bother troubleshooting - request a replacement system.
eeeehouse
2 Posts
0
February 16th, 2010 11:00
To clarify: my screen looks exactly like the images posted by the OP, but it is not an intermittent problem happening only after wake-from-sleep. It's a permanent feature of the display. The system is dual-boot, sometimes running Windows 7 and sometimes Ubuntu, and the screen looks the same with either OS.
eeeehouse
2 Posts
0
February 16th, 2010 11:00
I'm curious what the resolution was on this. I have a brand-new e6500 with exactly the same problem.
lynlmn
1 Message
0
February 21st, 2012 08:00
This is an inverter issue and it needs to be replaced.
r_w_w
3 Posts
0
August 4th, 2012 09:00
I am curious if these issues were ever resolved. I have an e6400 that is out of warranty and the LED backlight has completely failed. I am able to see a ghost image on the screen when illuminated by an outside light source such as a flashlight, but there is no backlight. Display is normal when connected to an external monitor, and I have attempted all software fixes such as adjusting brightness and disabling ambient light sensor. I have also updated the BIOS with no results.
I was told I would need a new display, but I would like to know if there is another potential cause such as an inverter or a fuse before I order an entire new display.
ejn63
9 Legend
9 Legend
•
87.5K Posts
0
August 4th, 2012 10:00
LED backlights don't use inverters - they use a converter board, which may or may not (usually isn't ) separately replaceable.
r_w_w
3 Posts
0
August 7th, 2012 09:00
Thank you for the reply, you got at the root of my question. I am aware of a converter for the LED backlights, but I am questioning whether it is possible to replace just the converter, or if there is some other element, such as a wire harness or fuse, that could have caused my LED backlight to fail.
I would like to avoid ordering a pile of replacement parts that I don't need