Hi all, This always sounded very obscure to me... Alessandro, can you recommend any value to test?
Cheers, denis Le lun. 19 févr. 2018 à 07:45, Alessandro Pasotti <[email protected]> a écrit : > Hi, > > sorry if this does not apply to mac (I'm not a Mac user), but did you try > to experiment with the following environment variables? > > QT_AUTO_SCREEN_SCALE_FACTOR > QT_DEVICE_PIXEL_RATIO > > the effect may be different with different Qt versions and platforms. > > > > On Mon, Feb 19, 2018 at 7:32 AM, Jeremy Palmer <[email protected]> > wrote: > >> Thanks for starting this thread Nyall. >> >> Ian not sure if it's relates to the HiDPI changes that occurred recently >> (e.g maptool cursors becoming small) but I've also noted that since Xmas >> the canvas is very sluggish when panning and zooming on Macosx and >> burning through many More CPU cycles than 2.18 for the same operations. >> >> Cheers >> Jeremy >> >> On 19/02/2018 19:14, "Nyall Dawson" <[email protected]> wrote: >> >>> Hey all (specifically OSX devs) >>> >>> From a few open bug reports we have against the OSX build of 3.0, I >>> gather that the OSX builds currently are not correctly handling hidpi >>> screens. >>> >>> My understanding is that the builds are silently trying to scale the >>> UI by pixel doubling/scaling - it's resulting in bugs like >>> https://issues.qgis.org/issues/18043, >>> https://issues.qgis.org/issues/17773, and >>> https://issues.qgis.org/issues/15984. >>> >>> Does any OSX expert know why this is happening? I think the automatic >>> pixel scaling should be switched off - while master isn't perfect with >>> hidpi screens, it's usable and the benefits of the hidpi >>> canvas/composer outweigh the remaining issues. >>> >>> Plus, I'd rather we use a single approach to hidpi scaling then have >>> to worry about separate code paths for OSX. >>> >>> Nyall >>> _______________________________________________ >>> QGIS-Developer mailing list >>> [email protected] >>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer >>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >> >> >> _______________________________________________ >> QGIS-Developer mailing list >> [email protected] >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >> > > > > -- > Alessandro Pasotti > w3: www.itopen.it > _______________________________________________ > QGIS-Developer mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
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