M4600 IPS Screen Corner Tint

I just did a rather informal battery run time test. My hardware is as described in my sig. I am running the factory install of Win 7 Pro 64 bit (but transfered to my Intel SSD) with various apps installed. No overclocking, no process removal or optimization, etc. So basically just an "Average Joe" config. My screen brightness was set to 5 clicks above minimum (so maybe 30-40%), and my WiFi was on and being used.

As I said, this was pretty informal. I was doing some distracted (watching a movie on TV at the same time) web browsing and email checking, so it was fairly light usage overall. Even when distracted, I moved the mouse enough to ensure that the screen did not dim or turn off, and to make the keyboard backlight kick in at least intermittently. From unplugging to auto-hibernate at 5%, I got 3:02 for a run time. My CPU spent most of its time below 5%, but was bouncing around from 1 to 15%. Just for reference, with no programs running (aside from background stuff) my CPU is 0-1%.

This was obviously a best case scenario (save for dimming the display all the way down and leaving the machine at the desktop). If I had been actively using other software such as Photoshop or ProE, I know it would be worse. Maybe 2 hours, but that's just a guess.

 

I've heard a few others ask this question, but I'm not sure what exactly they mean. If there was such a mode, where do you think I would find it? There is nothing in BIOS, and obviously no front panel buttons to change display settings like a normal monitor. Any ideas?

Also, since my NTSC claim was based on memory of a few weeks ago, I decided to recheck and post the graphs here. It turns out I was lying (or not) depending on how seriously you want to take this. As you can see below, the IPS gamut is a bit different than NTSC, though it seems "close enough." For others who are more familiar with this and have used other monitors, what do you make of this? I'm still kinda new to color management, so maybe what I think is close enough is actually way off for you seasoned pros. I'll let you decide:

AdobeRGB:


NTSC:


Also, I am curious if this will change at all with my pending replacement system.

 

I thought there was supposed to be a dell application that controlled the IPS display. You might want to ask Dell Mano G. What software did you use to adjust your monitor during calibration?

An sRGB mode would restrict the monitor to only reproducing colors in the sRGB range. Meaning the triangle on your calibration results would coincide with the triange for the sRGB color space exactly. It requires a lookup table in the monitor that is capable of doing this. Most high end monitors (including dell IPS's monitors) can do this.

NTSC is theoretically all colors that can be seen by the human eye. The fact that this monitor can get close to that is amazing. Especially considering the issues your having with your monitor. I imagine the color profile will get even better after you get your replacement. Backlight bleeding will definitely effect what the monitor can display.

 

When I spoke to Mano G last week (see above), he mentioned that Dell will be releasing software related to the IPS screens, so perhaps it will include setting an sRGB mode. If I understood correctly, he said it will include doing a basic non-hardware calibration. I forget what he said the name was, sorry.

I used Spyder 3 Elite to do my screen.

Maybe there's some program lurking on my start menu or control panel to change the screen's color space, and I just haven't noticed it. I'll take a look later when I am home.

 

his colors should improve alot after a replacement with no backlight bleed. I had a bleed on my first Elitebook with the IPS screen , after mine was swapped out and recalibrated my color profiles improved drastically.

but I have to agree, business class support makes a world of difference compared to the consumer side trained monkeys.

 

I just wanted to point out that I too have the corner tinting -- lower left has a green tint, and lower right has a pink tint. My laptop was built only about 10 days ago, so I guess Dell didn't yet implement any fixes .

I guess I'll have to take it up with Dell .

EDIT: Here's a pic of what it looks like on a black screen:

 

With th HP 8560W the HP display sw worked phantastic on that theme - sRGB was usable for all everyday things and I could load an own sRGB icc profile too...

 

Time for some closure!

There was some delay due to parts availability and a bit of a mixup on Dell's end, but yesterday I finally got my replacement machine. I'm happy to report that I now have a proper IPS screen. No funny colors and wacky light bleed. My results with the Spyder3 were more or less the same, so I'm not going to bother posting the screenshots here. The corners of the gamut triangles moved around a bit, but ultimately it is the same just-shy-of-NTSC gamut. Originally I did expect a more drastic change, but now that I think about it, the light bleed was only in the corners (and the Spyder measures in the center) so I shouldn't be too surprised.

Kudos to Liam Kennedy and Andre Passee (a returns admin not yet mentioned), both of whom I spoke with several times through this process. They have been very professional, friendly, and helpful. Thank you for fixing this for me, and a little adventure along the way.

clicq, based on my experience, I'm sure you'll have no troubles getting that screen replaced!

 

I just received my M4600 with the IPS panel - left the factory on Friday.
I am very happy with it - very cool machine.
One thing that I also noticed is a distinct green tint in the lower left corner and a distinct pink tint in the lower right corner....

compared, the tint is *very* noticable - particularly the right corner pink-tint. So - what now? call up Dell Germany?

 

Yes, I would call them up. Based on the experiences of myself and a few others on here with the same or similar issues, I don't think you will have any problems getting them to replace the screen. Dell has been very responsive to screen issues with both the M4600 and M6600.