How To Fix Dead/Stuck Pixels on a Playstation Portable (PSP)

So, I broke down and bought a Playstation Portable (PSP) this weekend. Lo and behold, it has a single stuck pixel. I didn't even notice it until I fired up a game for the first time, but there it is... A little, constantly red, annoying little bastard!

I really hate confronting retailers with returns, especially when its a single pixel that I'm complaining about. This wouldn't be the first time that I've done it though. But before I packed the PSP back up and headed for Best Buy, I figured I'd check online to see if this was a common problem. Unfortunately, it is a very common problem with PSPs and many people that have exchanged a PSP due to dead pixels, reports that their new unit has even more. So I count myself somewhat lucky to only have a single stuck pixel.

Luckily, I happened upon a post that talked about a little movie that that was originally distributed to help fix dead/stuck pixels on LCD TVs and monitors. The video is a series of screen that flash repeatedly in each of the colors that a pixel supports (Red, Greed, Blue.) The idea being that you can coax a stubbornly stuck pixel into working (or raise a dead pixel from the grave) by constantly forcing all of the pixels of the display to cycle through all of their possible states. (great idea!)

(Note: A stuck pixel is a pixel that only displays a single color (red in my case) and doesn't cycle to any other color. A dead pixel is a pixel that is black and never displays a color. The success rate seems to be higher with stuck pixels over dead ones.)

I downloaded the PSP version and have it currently running on my PSP, but some people have reported success in minutes, while other have had to let the video run for several hours. The consensus seems to be, that if the video doesn't fix your stuck/dead pixel in 24 hours, you might just be stuck with it.

I post this here, because I know of a lot of people that have stuck/dead pixels on their LCD monitors or laptop screen, and I figure that this might be worth a try on those as well. I'll post a follow up and let everyone know how it worked on my PSP. =)

You can download the movie file here, and read about it here.

Good luck and let me know if it works for you (especially when not used on a PSP.)

UPDATE

Well, I ran the video for probably 7 hours on my new PSP with no luck. The red little bastard pixel remained. Luckily, Best Buy was great at letting me return my unit for a new one. And I haven't been able to find any other stuck/dead pixels.

Hope you have better luck.

'Logon failure: unknown user name or bad password.' message in Windows Vista on a Dell D830 with a Fingerprint Scanner and Embassy Security Center. Bl

I received a new laptop for work (a Dell D830) and had a fairly easy time getting it setup for development. To my dismay, I notice periodic Blue Screens of Death (BSOD) while booting into Windows Vista. I looked up the error codes and was unable to find a cause and since my system always seemed to boot normally the next time.

Talking with a co-worker of mine that got a new laptop when I did, we both experienced seemingly random BSODs and were always a bit suspect of the Fingerprint scanner. I didn't really worry about it too much. That is, until this morning.

While booting this morning, I got another BSOD. When my system booted again, I was unable to logon to Windows Vista. Every time I would put in my username and password I would get the following error message.

"Logon failure: unknown user name or bad password."

I also noticed that I wasn't given the option to use my D830's Fingerprint scanner to logon either. I tried logging onto domain accounts and local account with no luck. I rebooted multiple times. I used Vistas startup repair tool with no luck. It was looking like I might have to hit a restore point or restore an image of my laptop.

Luckily for me, my boss had experienced a similar issue. The fix is a mixture of disabling your Fingerprint scanner and Dell's Embassy Security Center. The first step is to boot into Safe Mode by pressing F8 before windows boots and selecting it from the boot menu. You should be able to logon to windows in safe mode (if not, you might have a different issue.) Once you are logged on, perform the following.

Disable the Fingerprint scanner

(this step might be optional, since the second step might do it automatically.)

1. Press your Windows Key and type "Device Manager" and hit Enter to bring up the device manager.
2. Under Biometrics, right click on your fingerprint scanner and select Disable
3. Close the device manager

Turn off Secure Windows Login in Embassy Security Center

1. Press your Windows Key and type "Embassy Security Center" and press Enter (if you don't have this application, you probably have a different issue going on.)
2. Click on Windows Logon
3. Uncheck Enable Secure Windows Logon
4. Click Apply and close Embassy Security Center

After performing these steps, reboot your machine normally and try to login again. Worked great for us on our Dell D830 and was a bit of a pain to track down. I might post an update and let you know if this also clears up my random BSODs.

Hope this helps someone. =)