Precision M6400 screen color as blue push/tint

Where can I set this?

Is the adjustment curve from Spyder? I only get a slider in my Nvidia Control Panel.

 

I can't believe that the m1710 screen is better than the M6400 ccfl or the RGB-LED. Do you have photos to prove? All photos I've seen showed the superior of the RGB-LED:



Btw. my Spyder 3 tool worked flawless on my RGB-LED screen?

I don't want to say you're not telling the truth, but perhaps your spyder tool doesn't work right.

 

And what are you going to do with your M6400?

It's a pitty they didn't give you the refund so you can buy your 8730w (HP uses the same screens as Dell) and continue to complain about screens in the 8730w thread...

 

This chart is a great way of illustrating the exact same problem with my CCFL WUXGA display.

I was comparing my M6400 to an external Dell 2007WFP and a Samsung 940MW. On the M6400:

• CCFF00 looks identical to FFFF00
• CCFF33 is the same as FFFF33
• CCCC00 is the same as FFCC00
• CCFF66 is the same as FFFF66
• on the bottom rows the colors around 999900, 99FF00, 99FF33 are displaying as a dark yellow instead of green.

On the other two displays I dont see this issue.

 

Adjustmet curve from Nvidia driver. I have the Sliders and Gamma Tab. I am running x64 XP and nvidia driver from dell website. If you do not have gamma tab - you running Vista and Vista sucks. So go get Nvidia registry hack to enable gamma tab in color correction section.

I run XP x64. Why XP x64? - Because Vista - SUCKS. I have so many reasons to think so starting from totally inconsistent color management in between applications in vista (some color managed, some not, thrumbnails are not color managed but viewer is ), and up to the fact that by default Vista throttles network speed to 10% (why not 9 or 11? or 15%? or maybe not throttle as I HAVE QUAD CORE CPU, 1GHZ BUS and 8GB RAM, 2x320GB in raid 0 - I CAN HANDLE 70MB/S via 1GB link!!! Stupid vista.)(i know how to correct this through registry) of the total when you paly music, or video. My usb hdd does ~30mb/s read in XP, same hdd does ~10 mb/s dead stable read in Vista (through throttling of some kind somethere in Vista and no info how to turn this off via registry as it can be done for network throttling (Yes I checked all the possible USB drivers and YES same crappy result - the throttling is in the OS itself).
Hudge space on the disk taken by Vista, system restore and other freaking stupid stuff. Constant disc activity - disk just blinks every 1, 2, 3 seconds for n some reason - schediler runs programs which s"pying on me" colleting information about my pc, web sites i go to, hardware I use - creating reports and sending them to Microsoft.

Maybe Vista SP2 wil make it right.. But it is so big and so messy that it is hard to believe in that.

YES - Vista has better malware protection. And Ultimate version has really powerful backup tool. That is probably it - the reast it is just a pain. Like for example Vista decided to download color profile for my other SAMDUNd 245BW - when done suddenly all colors in image viewer became yellowish - there is a KB article on that in Microsoft saying remove the SAMSUNG profile to correct the problem. Now my question is why don't you remove that profile from the downloads, so people won't get into that problem in the first place...

Long story short.

Windows XP x64 works fine. There is a registry mod which enables "OLD GPU support on CS4" - run reg mod and and now you have the OpenGL acclerated enviroment in CS4 on 64bit XP. But you really dont' want the CS4 because is it so buggy and slow CS3 is just fine
So I had to spend $$ to get x64 XP - you can get it so cheap our days - GOLD. Don't forget to enable write-back cache on HDDs via device manager - does help a lot!

 

This is Because DELL Put low end 2002 dead end technology CCFL LCD into your M6400. It can display only 262,000 colors. Whis is why some of the dofferent colors appear exactly the same way on this CCFL. There is nothing you can do about it. No calibratio or adjustment will help. Just replace it with LED or proper CCFL.

The technocal side is your nice high eng Nvidia card outputs when uncalibrated 2^8 - 256 levels for each color R, G, B. In the total mix of these 3 you get 16M or exactly 16,777,216 colors.
The CCFL display you have recognizes only 2^6 (6 bit instead of 8) - 64 levels for each color R, G, B. Mix of 3 goves you 262,144 colors.

So basically your CCFL combines differnt colors and represent them as single same color - this is why your CCFF33 is the same as FFFF33. The combining algorithm is not linear - in darker colors these 64 levels are more dens in brighter -less dense do you notice nost of the ptoblems in highlight, but you still have them in darker areas too. Tis non-linear combining is required to paly in line with human eye characteristics - human eye recognizes many gradations in the dark and when brightness increases - less and less (this is eye protection from overxeposure in gighlights ) Inthe case of CCFF33 and FFFF33 the RED color has a last tep from maybe 200 to 255 which is displayed as a max brightness red on your CCFL for red, so CC (204) and FF (255) are displayed as the same color.

Now your choise - to pay $1000 for Pain in the Green (I just realized Dell said saomthing about going green ) LED which you will need to calibrate through the pain, or add another M6400 to loooooong list of refurbished machines on dell outlet and then buy a an older previous model CCFL MAC laptop with descent display...

 

Some more playing. I tricked the gamma adjustments so I get close to thr target.

I attached some profiles for you to try if you would like.

Profiles and settings all are done on my LGD018E matt screen on M6400. Measured brightness after calibration - 131cd/m^2 - this is when you do all adjustments and load LUT will be 6 clicks down from top brightness.

Each profile has Nvidia driver gamma adjustments in the name. R G B sraight line (0,0 to 1,x where x is the value you set)

This is the latest I use:
Laptop-LED-Gamma-098-078-078.icm
It means in Nvidia Driver R Out:0.98, G Out:0.78, B Out:0.78 and then apply this profile.

Remember you need program to load LUT based on this profile on Windows startup or on demand. There are several options available these.

Thanks.

 

LED or CCFL just tells which kind of backlighting is used. This has only a small influence on the screen quality.
I don't get it why you are so angry with Dell, all notebook builders use 262k 6bit ccfl or led screens! With the RGB-LED Dell is one of the first using a good notebook screen, so why dennounce Dell for using top end and normal screens (like all other manufatures use)?

 

This is what I send to the Dell tech. that got me a promise of a refund.

My external screen is also a regular LCD.. so I don't understand why Dell's LCD would not show the color correctly.

The picture in question:

If you see the pin as one color (no shadow that gives the 3D feel like on the attachment), something isn't right.

 

Pardon a question out of my relative ignorance on this topic.

My wife's Photoshop CS4 desktops use either large Eizo or NEC monitors calibrated with an i1Pro spectophotometer. I am considering getting her an M6400 with the regular (non-E2E) LED screen. Is this thread saying that even using the best hardware and software, the M6400 LED screen can not be calibrated to match her primary desktop monitors? Is the Lenovo W700 then the only really good Photoshop laptop?

Thanks