Perhaps it's outside the scope of this mailing list, but in that case should I calibrate my monitor to a gamma of 1.7 to get the best text rendering?
On the other hand, this link indicates that a relative system gamma of "1.0" is equivalent to 2.2 on windows, so perhaps a monitor calibrated to 2.2 is actually correct. https://docs.kde.org/stable5/en/kgamma5/kcontrol/kgamma5/index.html (https://link.getmailspring.com/link/e256c570-0f27-4e81-8af8-8ef045bb9...@getmailspring.com/0?redirect=https%3A%2F%2Fdocs.kde.org%2Fstable5%2Fen%2Fkgamma5%2Fkcontrol%2Fkgamma5%2Findex.html&recipient=ZnJlZXR5cGVAbm9uZ251Lm9yZw%3D%3D) On May 4 2021, at 11:29 am, Allan Sandfeld Jensen <li...@carewolf.com> wrote: > Qt5 uses a gamma of 1.7 for text rendering on X11. > > The KDE gamma slider is an effect on the whole screen, not how elements are > blended together inside singular apps. > > Not sure there is any other place we could read an expected gamma from on > Linux, the only other source is using real gamma from monitors EDID, but that > would result in a much higher gamma and lighter text, probably not fitting > user expectations. Though perhaps we ought to have a switch allowing users > to use real numbers instead of simulating traditional mistakes. > > Allan > On Dienstag, 4. Mai 2021 12:20:38 CEST Rob wrote: > > Ok, I understand. > > > > I am using KDE so I guess qt5 is responsible for gamma correction (and > > probably assumes monitor is 2.2). > > On May 4 2021, at 10:53 am, Werner LEMBERG <w...@gnu.org> wrote: > > > > But if it is correcting the gamma it must assume that my monitor has > > > > a certain gamma? > > > > > > As Allan has written: FreeType does *not* interact with gamma at all! > > > If you want to be very precise you could say that FreeType doesn't > > > return bitmaps with color or grayscale pixels. Instead, it returns > > > *coverage* values (i.e., how much area of a pixel is covered by ink), > > > and the calling graphics library has to further process it. This > > > includes application of gamma correction. > > > > > > > > > Werner >
