On Sun, 17 Nov 2024 at 11:10, lejeczek via users < users@lists.fedoraproject.org> wrote:
> It's been a while and I've changed my hardware setup - which now makes it > even more puzzling. > Now I have two "identical" Dell monitors - P2418D - and colors are > different, one has whites cooler whereas the second's whites (thus other > colors) are warmer. > I've been playing with 'colormgr' but am unable to make screens to look > the same. > I've also done simple "factory reset" within monitors. > Perhaps that "warmth" is something else and 'colormgr' cannot fix it - > would anybody know? > Or hardware calibration - event though it's the same monitor - is the only > "fix" here? > Probably an obvious thing, but if you have 2 identical displays with wildly different colour balances, have you checked each display's "Color Preset Modes" in the OSD? https://dl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-p2418d-monitor_user's-guide_en-us.pdf See page 38/39 of this PDF. If this is set the same in each, then are you driving them over different standards? e.g. HDMI for one and DisplayPort for the other? Or one via a dock and one direct from the laptop? That /might/ account for differences?
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