Problems? See this thread at archive.org.
My M40 has 2 dead pixels. I'm thinking of exchange it tommorrow.
How common is this problem and is it really worth the trouble to the store????
The other parts of the laptop works perfectly fine, but I heard some problems with the squealing noises and defective video cards. I dont want to take a chance and run into any of those problems.
THanks
Ming
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Well, my first unit was indeed defective, the graphic card behaved like a wild animal
However, my second unit is functionnal. Both my M40 had zero dead pixels, and all the others in here reported that their screen was perfect, so I guess it's not really common, neither seems a defective graphic card.
However, about the noise, don't get your hopes up, it seems to be a "feature" of this notebook (as well as other models/companies I've read), so if it didn't annoy you yet, chances are your ambient noise is high enough (doesn't need to be much, it can only be the refrigerator's background noise for example) to cover it up, it's really not that much, just a slight electrical buzzing sound. It varies with CPU speed.
So, in summary, what I think, dead pixels and bad video cards are not common, but the squealing noise, it's a take-it-or-leave-it.
Toshiba Satellite M40 - Pentium-M Sonoma 1.6ghz - 512mb DDR333 - 60gb 4200rpm - GeForce 6600 128mb - 15.4" BrightView WXGA TFT LCD -
ok, you may be right about the conflicts with other appliances, but currently, my laptop is plugged in a AC regulated outlet (an UPS) and it still does it
About 512mb... well, I never really believed in the performance gain of dual channel memory. With 1 gig you'll get better multitasking all right, but raw performance, it's around 5~10% improvement at best and you'll only "see" the diff in theoretical benchmarks and alike. Your game won't blaze through 2 times faster
Toshiba Satellite M40 - Pentium-M Sonoma 1.6ghz - 512mb DDR333 - 60gb 4200rpm - GeForce 6600 128mb - 15.4" BrightView WXGA TFT LCD -
Good idea
Toshiba Satellite M40 - Pentium-M Sonoma 1.6ghz - 512mb DDR333 - 60gb 4200rpm - GeForce 6600 128mb - 15.4" BrightView WXGA TFT LCD -
I personally have not heard any squealing noise...I got my m40 yesterday so maybe they fixed it? [
] if the noise goes away when you plug a USB device(which draws power), the source is probably a capacitor within the laptop that buzzes when there's a good amount of current running through it. this would especially make sense since the AC connector and the battery connector are located on the top left of the laptop.
dead pixels are a common thing with LCDs. I believe the industry stanard for an acceptable dead pixel count is around 8 for a 17" screen.
there is a small difference between dead pixels and stuck pixels. a dead pixel is a pixel that wont respond to the electric current being fed to it(so it appears black), and a stuck pixel is a pixels that lights up, but remains stuck on one color(could be red, blue, etc.)
there are some cases where stuck pixels become unstuck, but it's rare. any stuck pixel should pretty much be considered a dead pixel.
also, there are no different sizes of dead pixels. if anything, it's most likely multiple dead pixels that are side by side(really rare).
SamSung introduced a no dead pixel policy in Korea, and hopefully they will do that soon in North America.
The surest sign that intelligent life exists elsewhere in the universe is that is has never tried to contact us. -
Well, there are different "Sizes", of course not literraly speaking.
Sometimes, only a sub-pixel is stuck or dead, so the anomaly is smaller and produces weird colors instead of black or white A pixel is made of 3 sub-pixels.
Toshiba Satellite M40 - Pentium-M Sonoma 1.6ghz - 512mb DDR333 - 60gb 4200rpm - GeForce 6600 128mb - 15.4" BrightView WXGA TFT LCD
Dead Pixels!!
Discussion in 'Toshiba' started by macming, Mar 13, 2005.
