423116 - Laptop's TFT-Screen produced __FAULT PIXEL__ along with Firefox

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[slamdank]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9b4) Gecko/2008030714 Firefox/3.0b4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9b4) Gecko/2008030714 Firefox/3.0b4

When I have an internet session along with Firefox, after a while of 5-7 minutes since the session started a fault pixel (say, white pixel on the black background) is shown up on the TFT-display. Different sessions with Firefox "produced" fault pixels on the different places on the display.

When I use a different Internet Browser (IE, Opera) there are no fault pixels on my screen. First I detected the problem along with Mozilla Firefox 2.x. There’s the same behaviour along with Firefox 3.0 Beta 2 and Beta 4.

Reproducible: Always

Steps to Reproduce:
1. Start Firefox on the IBM Thinkpad T43 (SerialNumber: 1S266892GL3GXN26).

2. Wait a while (5-7 minutes).
Actual Results:  
A fault pixel is shown up on the screen.

Expected Results:  
Laptop's TFT-screen doesn't display any fault pixel.

1. Mozilla Firefox seems to be clashed with TouchPad-Driver of the IBM Thinkpad T43. The info about clash between Firefox and TouchPad-Driver of the IBM Thinkpad T43 came from IBM Service Center.

2. I can provide screenshots with fault pixels I did as the problem shown up.

3. Sorry, but Bugzilla-GUI doesn't provide an opportunity to attach a file like screenshot etc.

Comment 1

[slamdank]

Attachment: Screenshots with fault pixel(s) produced along with Firefox

Comment 2

[Matthias Versen [:Matti]]

Are this faulty pixels will stay or are they gone if you close Firefox ?
This is either a Windows, graphic driver or a hardware problem.
I don'
t know why you get this only with Firefox but Firefox (as all user space applications) does only use the "normal" windows API functions for painting and doesn't deal with either the graphic card or the LCD directly.

Comment 3

[slamdank]

The faulty pixels stay if a close Firefox. They can disappear if I in a while (say, 5-10 min.) start Internet Explorer. 

I think if it was a hardware problem I had the problem whole time, no matter which one application runs on the laptop, but the problem is arised if I use only(!) Firefox on my Laptop. 

Well, Firefox doesn't deal with the graphic card or LCD directly. May be it uses any GUI API-Library/Function which at the same time in use by any Laptop's HW/Service-SW or something else, so on this point there's a clash resulted as faulty pixels. 

Comment 4

[Matthias Versen [:Matti]]

It's either a driver bug or a hardware bug.
There is really nothing we can do about this