RGB settings unexpected​ly reset when adjusting brightness on HP2509b monitor

I am trying to modify the RGB values and brightness settings of my HP2509b monitor so that the the images on my screen more accurately reflect the prints that I receive from my photo lab.  
After I modify the RGB settings so that the White Balance on my screen matches the print pretty closely I then attempt to lower the brightness to adjust that setting more closely to what I see on my print as well. Upon reducing the brightess by only 1 value, my RGB values instantly reset to the 6500K preset.
WHY????

Thomas,
the free GMB program Calibration Tester shows the
contents of the graphics card LUTs.
Altogether three programs, mentioned here on p.20:
http://www.fho-emden.de/~hoffmann/measgamma10022004.pdf
If the luminance settings of the monitor are above
the target value e.g.100 cd/m2 for a calibration
by instruments, then the graphics card LUTs are
trying to reduce the luminance (old example in the
doc, also p.20), for instance from 110 to 100 cd/m2.
Such a case would reduce the resolution a little.
As tested by Eizo CG19:
The adjustment of the monitor by monitor menues
doesn't affect the graphics card LUTs. In fact,
the calibration by GMB ProfileMaker5 guides the
user to adjust the monitor dynamically/interactively
so, that the LUTs contain finally almost no correction.
In this sense the old example above wasn't perfect.
This is the classical method, which I'm applying as
well to Eizo CG19, though this monitor offers a
calibration by ColorNavigator, based on monitor-
internal LUTs with 10 or 12 bits per channel
(leaving the graphics card LUTs at identity y=x).
For certain reasons I'm not using this feature.
One reason: then it would be impossible to have a
look at the contents of the LUTs.
Theoretically the result should be better for high
resolution LUTs, but I wasn't able to detect banding
or posterization after applying the classical method.
Best regards --Gernot Hoffmann

Similar Messages

  • Is there a way to adjust shadows in iMovie 11? WhenI adjust brightness it changes shadows also. If not is there free or low cost software available? My operating system is Lion.

    Is there a way to adjust shadows in imovie 11. When I adjust brightness, it changes shadows also. If not, is there free or low cost software that I can download? I am using Lion 10.7.1

    You used the data.  Verizon can not see what it was sued for.  However your phone can see whats apps used the data.  go to settings-data usage- there will be a place that says data usage cycle.  line the dates up with your cycle.  then there will be a bar graph below that   extend bother white bars one all the way to the left and one all the way to the right.  after those are extended below that will be a list of apps,  there should be one that used over 2 gb and that will show you what app used that data in her purse

  • Colored frames when adjusting brightness/contrast

    Hello kind people. I am trying to adjust brightness/contrast on a short clip in my video, and I keep getting some colored frames that play when I replay the clip. I can stop at the colored clips, some are blue, and some are magenta. Anyone have an answer? I have rendered the clips, but I can't figure it out, and have never had this problem.
    Thanks,
    Mike.
    Final Cut Pro 6.0.6

    I reset the codec to Pro. All the footage I shot myself with the same camera setting. Also, I am only editing this one short clip, so it's not mixing with anything else I don't think.
    I figured out a go around from my problem. Instead of going to Effects, Video Filters, Quicktime, Brightness/Contrast, I am now doing Effects, Video Filters, Image Control, Brightness. It seems to automatically take care of the contrast to make it look nice.

  • How do i adjust brightness on second monitor

    how do you adjust brightness of the second monitor ?? just upgraded the graphics board to ati radeon 5770 and added a second monitor -

    Never mind - found the answer inside the answer to someone else' question - the USB was not plugged in which provided the nice slider

  • Unwanted noise when adjusting screen brightness

    Are there any other new iMac (iSight) owners out there experiencing unwanted noise when adjusting their screen brightness to any setting other than maximum? Dimming my screen causes a loud buzzing sound similar to feedback you get with bad grounding.

    Dyummy,
    Thanks for posting this link. I am as puzzled as some of those posters are, since this noise only happens under Vista and not in OSX. In my case it also happens in the lower right side of the screen and only when I lower the screen brightness in Vista five or six notches using the F1/F2. If I lower the brightness using the nVidia control panel in Vista there is no sound either. The only problem is that the nVidia control panel is not very good and quite limited at lowering the screen's brightness.
    I am still inclined to believe this is a driver/software issue with the nVidia 256MB card or the display. If your screen replacement helps, let us know.
    Thanks,
    JLC

  • HT4293 I have an Apple monitor model A1316 is using for Windows computer, but I could not adjust the brightness. The monitor is not bright enough when I turned off the lights in my room.

    I have an Apple monitor model A1316 is using for Windows computer, but I could not adjust the brightness. The monitor is not bright enough when I turned off the lights in my room.

    Have you plugged the USB cable into the computer also as the brightness is controlled over USB. If this does not work, you would need the Apple Display Driver for the version of Windows that you are using. The display driver is part of BootCamp software that you may be able to find online

  • Icloud apple ID did not change in settings on Iphone 4 when reset in itunes!

    Icloud accout in settings does not reset to my new ID, is there a process I am missing?

    Hey djohn15140,
    To change the Apple ID you are using on your iPhone, follow the steps in this article -
    Sign in with a different Apple ID on your iPhone, iPad, or iPod touch - Apple Support
    Thanks for using Apple Support Communities.
    Be well,
    Brett L 

  • Why are my webpages taking so long to load when I am having no router, connection, or modem problems and am getting 20mb/s on speedtest? Are there settings that need to be adjusted?

    Could it be settings that need to be adjusted somewhere? I'm using osx lion 10.8.3 and google chrome.

    Did you test with other browsers and pages still load slow?
    If so and/or if you want, run a OnyX cache cleaning routine #12 here
    Step by Step to fix your Mac
    If it's Chrome, you may want to uninstall it and it's rook kit messing up the OS X works.
    Uninstall  Chrome:  https://support.google.com/chrome/bin/answer.py?hl=en&answer=95319
    Google root level auto-updater: to uninstall that (provided you have no Google software on the machine)
    https://support.google.com/installer/bin/answer.py?hl=en&answer=100386
    Firefox with the broadband tweaks is the fastest browser on Mac's, (Safari is without the FF tweaks.)
    See #6 Browser Tweaks for speed
    For Snow Leopard Speed Freaks
    Web pages snap violently and instantly on my screen unless there is a server issue or high winds are messing with the lines.

  • Display Auto adjust brightness acting weird and flickering

    Last couple of months I get a fair amount of flickering on my screen. As far as I can tell, there
    is no specific area that it is flickering in. After checking my settings for Auto brightness,, I find that
    the box that is there for ticking off "Automatically adjust brightness" is unticked, and the brightness is
    moved to around the 3/4 brightness area.  I am in my basement which is fairly dark, so basically I am
    trying to find out about the flickering that goes on, and have a feeling that when the brightness is diminished, it
    causes/caused the flickering. So, I raised the brightness to extreme(right to the end of the scale) and continue
    to have the box "Automatically adjust brightness" UNCHECKED.    Sooner or later,, something must trip off the
    Autobrightness,, because I eventually notice the flickering going on,, then I go to my settings to check the brightness,
    and find that the slider is back to 3/4 and still the Autobrightness box is Unchecked. This happens all by itself.
    Basically , #1,, whether it is on Auto or Not,, I shouldn't get any flickering, and #2,, my display shouldn't on its own
    adjusting automatically the brightness by itself, unless I check the box correct?  How can I get my screen brightness
    to stick ?

    To close out my original post, I never did managed to solve my flickering problem. I did every trick in the book, including SMC  resetting PRAM etc. So, just as I had given up trying to fix, low and behold, my left side of the
    screen one fine morning became rather dim. I knew that something , like backlight had gone on it. So, I still had
    lots of warranty, brought it in. This time, because of it being a rather obvious defect upon looking at my screen.
    The genius ordered a new LCD and backlight .
    So far, no flickering, however, I still have the brightness level that drops down from a full brightness, no matter if I check off "automatically adjust brightness" or not. This being in a relatively dark environment.
    I can imagine that there are many people still with this problem, with no obvious solutions that are 100 % effective.

  • Cannot connect airport express to ipad I keep receiving the message: "an unexpected error occurred" when I try to connect my Ipad to my airport express.  Does anyone have a solution?

    cannot connect airport express to ipad
    I keep receiving the message: "an unexpected error occurred" when I try to connect my Ipad to my airport express.  Does anyone have a solution?

    I could not "see" my Express via my wireless router or via the Airport Utility until I reset it to Factory Settings by unplugging it then holding in the tiny reset button while plugging it back in, waiting for the flashing yellow LED signal before letting go.
    Then I set it up to DHCP - "connect to wireless network" and DOWNGRADED the firmware to 7.3.x
    I would tell you the exact Firmware but I can no longer "see" the Airport express............ AGAIN or still.....
    BUT at least I am listening to music streaming from my MacBook Pro... Hmmm.
    I log back into the router (Linksys WRT110) and it no longer shows the Airport Express as a DHCP client AND the Airport utility can no longer "find" any Airport Devices..
    So if I don't move, or there are no cosmic events, or maybe my KARMA is effecting the device or my "VIBES" are good, but I'm not sure if will continue to work.. Sure would like to use this little device from hel*.
    Since I have had this Airport Express I have spent many hours trying to get it to work.
    It works just long enough to fool me and then takes a dump...
    Maybe this time?
    5 Minute later...
    Music was playing. I went into iTunes and switched from Airtunes to Computer speakers. When I tried to switch it back GUESS WHAT?
    [An unknown error (-15006) occurred while trying to connect to remote speaker "Airtunes"]
    Wonderful Green LED though. Totally useless piece of equipment AFAIK.
    Message was edited by: Daniel Shattuck

  • Can't slice gradient with adjusted bright/contrast filter

    I was playing around with gradients, and finally came up with something I wanted to try on my site. I'm taking a shade of yellow (#CC9933), then adjusting the colors with a brightness/contrast filter (brightness -81, contrast -8). But when I try to export a slice of the image, or just copy it to another Fireworks file for export, I am getting the original, bright yellow gradient, not the darker gradient with the adjusted brightness/contrast settings. What am I doing wrong?
    I've attached a copy of the image I'm working with. It shows both the image with the adjusted colored gradient I want, and (to the right) how the slices are looking like.
    Thanks much to anyone who can help

    Thank you, Jim. I don't know what I was doing last night. Everytime I tried to export or copy from
    the darker image, I'd get the lighter one in Dreamweaver. I just tried it after reading your posting, and it works fine now. I think the lesson for me is, don't work at 3:30 am.
    Can you recommend which format (jpeg or png24) I should export as? The darker image, that is. I don't want the lighter one.
    Thanks again.

  • Windows 8.1 Bootcamp wont Sleep or adjust Brightness

    Hey Guys, I installed windows 8.1 via bootcamp onto my 2013 rMBP, 16gig Ram, Upgraded Processor, and I have two issues with it. 1. I cannot adjust my screen brightness, which is manageable but annoying. 2. It wont go to sleep. There isnt an option anywhere to adjust brightness or put it to sleep. The only option are to hibernate, shut down, or do nothing. It seems as though the sleep function just isnt available, nor is the brightness. I feel like thse two things may be connected, but I wasnt sure. I have browsed some threads, but nobody seems to have a find for 8.1 or these problems yet. When I try to sleep my computer (i.e. close the lid) it just shuts down, and I have to hold option to power up back into windows. If anyone has a solution, please do let me know:) Thanks!! Also I'm running mavericks fully updated, the newest bootcamp software and the newest bootcamp drivers, AND windows is fully updated.

    I have the same issue. Any luck miller? When I close the lid on my Macbook, i have to power back up and use the OPTION key to get back to Windows 8.1. This issue just started after updating to Mavericks...
    My brightness control does work fine.

  • IMac 24" and adjusting brightness.

    Hello. I have this fancy (and great) iMac 24". Only annoying thing is that when I try to adjust brightness, it just does not "adjust" brightness. Difference between "none" and "full" brightness is close to nothing. I have so far zap Prams, deleted prefs, turn green and shouted that I am Hulk - any ideas?
    I know that there is Shade and other small apps to do this. But Brightness-control should efeect as...well... a brightness control.
    Sooooo...any ideas how to get a working brightness control by keyboard?

    Yeah, I have. And system preference panel.
    When I press F1 or F2 to adjust brightness I have this normal response in display (picture). I dont know whats the right word for it but I mean the white brightness slash hovering on my iMacs desktop. You know, when You press volume controls there is a picture of speaker and when you press brightness there is a picture of rising sun.
    Anyways, I get that. BUT THERE IS NO VISIBLE CHANGE IN BRIGHTNESS BETWEEN HIGHEST AND LOWEST.
    Same thing via System preferences. Brightness slider has the same lack of adjustment.
    Sooo, any ideas? Where could be the problem?

  • Palm TX does a soft reset when I tap on memos

    I am new to posting on this forum.  My Palm TX does a soft reset when I tap on memos or push the button I have set to memos.  I also have had several soft resets occur after tuning the my palm on from the On/Off button.  I have had Palms for the last 10 years.  Never had this problem.  The only problem I had was the On/Off button on The TX failed as a result this is my 3rd TX in the last 4 years.  Any suggestions welcome.  I was behind on syncing and my last sync was done about 1 week before this problem occurred.  I really do not want to do a hard reset.  This problem has been going on for a month.  Can I just do an unistall/reinstall without loosing any info?
    Post relates to: Palm TX

    This question has been asked and answered many times here... Somehow, the memos database has become corrupt on the device. There are two ways to fix this:
    1. First, open Palm Desktop and go up to Tools/Options/Tools Tab and click the Check Records button. Let it look for corrupt records, and if none are found then a simple fix is to set your HotSync Manager setting for the Memos app to "Desktop overwrites Handheld" for one operation.
    If using Palm Desktop 4.x, change the conduit here: Click on your HotSync Manager icon in the tool tray, and select "Custom". Make sure your HotSync Account name is showing in the top window, then highlight the Memos app and click the "Change" button. Click the selection for "Desktop Overwrites Handheld" and click "Done". (DO NOT select the "Set as Default" box!) Now do a HotSync. Since you didn't select "Set As Default" it will only do the overwrite for one operation, then default back to "Synchronize".
    If using Palm Desktop 6.2.x, change the conduit here: Click on the HotSync Manager icon in the tool tray, and select "Settings". Make sure your HotSync Account name is showing in the top center window, then click the "Applications" link in the left column. Check the box for "Show Details", Highlight the application you wish to change, then click the "Configure" button. Click the bullet for "Desktop Overwrites Handheld" and DO NOT select the "Set as Default" box. Now do a HotSync. Since you didn't select "Set As Default" it will only do the overwrite for one operation, then default back to "Synchronize".
    Check to see if the HotSync completes without errors, and your Memos application is back to normal.
    2. If the above does not fix the problem, then download and install "DBFixit" from Pimlico Software: http://www.pimlicosoftware.com/dbfixit.htm The program will search your device for errors, and fix some for free. Others may require the purchase of a registration code, with the funds going to an animal rescue non-profit (Gorilla Haven).
    WyreNut
    I am a Volunteer here, not employed by HP.
    You too can become an HP Expert! Details HERE!
    If my post has helped you, click the Kudos Thumbs up!
    If it solved your issue, Click the "Accept as Solution" button so others can benefit from the question you asked!

  • Adjusting brightness on external LCD of MacBook

    I have a Samsung Syncmaster 2033 connected to my MiniDisplayPort. The buttons on the side of the monitor have stopped working. Is there anyway I can adjust brightness/contrast and/or any of the other configuration settings for the monitor from OS X? Otherwise, is there a third party software out there that will do it?

    Try Shades
    <http://www.charcoaldesign.co.uk/shades>

Maybe you are looking for

  • Install disk for iMac won't install

    I have a Mid-2011 iMac which I'm prepping for resale.  It had been upgraded to Lion.  But, I believe, no further.  I cleared the drive and wanted to reinstall the OS and apps.  Installing from the DVD got me the grey screen problem.  So, I booted int

  • I keep getting a "can't find a wireless keyboard" message at start up, but I am using a usb keyboard.

    I have an imac and at start up I get an error message saying "can't find wireless keyboard" and it tries looking for one via bluetooth.  Unfortunately I only have a usb keyboard, which doesn't seem to register.  I can't type my log in details in so I

  • Learning to create a cooking recipe App

    I would like to learn how to create a Mac app for managing cooking recipes similar to MacGourmet.  Over the years I have used many Windows and Mac cooking programs.  Most are good but I would like to assemble features I prefer.  I assume it must be d

  • Having to re-buy what I already bought?

    Over the past few years I have been a very loyal customer to the iTunes Store, buying many different products ranging from songs to albums to audio books. Now that the "see what you have bought but haven't downloaded yet" thing has been added to iTun

  • RSRV Error

    I ran the RSRV test for the "Database Information about InfoProvider Tables" to check the Fact Table/Dimension table entries and their percentages with respect to fact table. But the test did not return the intended results. I had about 25 records in