Created attachment 88280 [details] Monitor profile with VCGT data What is the problem: While checking my color-management setup I found that the LUT curves loaded by colord-kde are slightly different from those loaded by dispwin or xcalib (or oyranos, which uses xcalib internally). What is expected behaviour: Even that the difference is minor, the LUT modification should be the same as with other proven tools. How to reproduce: 1. Import the attached profile.icc to colord (through GUI in colord-kde) and assign it to your monitor. The brightness of your screen should change sligthly due to VCGT loaded into video card LUT. 2. Open terminal and export the current LUT: "dispwin -s colord-kde.lut" 3. Load the VCGT to LUT again, this time with xcalib: "xcalib profile.icc" 4. Export the current LUT to a different file: "dispwin -s xcalib.lut" 5. Load the VCGT to LUT again, this time with xcalib: "dispwin profile.icc" 6. Export the current LUT to a different file: "dispwin -s dispwin.lut" Now compare the files: xcalib.lut and dispwin.lut are the same, while colord-kde.lut is slightly modified for some values.
Created attachment 88281 [details] colord-kde.lut
Created attachment 88282 [details] xcalib.lut
Created attachment 88283 [details] dispwin.lut
Dear Bug Submitter, This bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? I am setting the status to NEEDSINFO pending your response, please change the Status back to REPORTED when you respond. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This is a reminder that this bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? This bug will be moved back to REPORTED Status for manual review later, which may take a while. If you are able to, please lend us a hand. Thank you for helping us make KDE software even better for everyone!
Thank you for reporting this issue in KDE software. As it has been a while since this issue was reported, can we please ask you to see if you can reproduce the issue with a recent software version? If you can reproduce the issue, please change the status to "REPORTED" when replying. Thank you!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!