My display scale is 1.2 under X11. See screenshot taken on Arch Linux, dolphin 17.12.2.
Created attachment 110678 [details] screenshot
Git commit ae67f991951e826ab6d0a6cb6e1123cf6ee35ca5 by Kai Uwe Broulik. Committed on 15/02/2018 at 12:37. Pushed by broulik into branch 'master'. [Information Panel] Adjust painting icons for high dpi scaling Instead of creating our own KIconLoader (which takes ~5ms here) just use QIcon::fromTheme which already does everything right. Differential Revision: https://phabricator.kde.org/D10532 M +9 -14 src/panels/information/informationpanelcontent.cpp https://commits.kde.org/dolphin/ae67f991951e826ab6d0a6cb6e1123cf6ee35ca5
*** Bug 390606 has been marked as a duplicate of this bug. ***
Created attachment 111618 [details] fuzzy picture preview in dolphin 18.04 beta I'm testing Dolphin 18.04 on Arch Linux, now icons in info panel look OK. However, as you can see in my screenshot, picture preview is still fuzzy.
Can confirm. They actually look worse in HiDPI mode, as expected for small pixmaps that are being upscaled. The fix is most likely somewhere in Dolphin's informationPanelContent.cpp. Probably the pixmaps need to be adjusted to take the device pixel ratio into account rather than using raw pixel sizes. Perhaps it's the line that does this: m_previewJob->setScaleType(KIO::PreviewJob::Unscaled);
Dr. Chapatin, does this also look bad at 2x, or only for 1.2x?
icon of ISO file, for example, looks bad with 1.2x scale (like you can see in the screenshot posted in comment 1) and looks good with 2x scale. Picture preview looks bad no matter if scale is 1.2x or 2x.
preview of pdf files also looks fuzzy. Operating System: Arch Linux KDE Plasma Version: 5.15.3 KDE Frameworks Version: 5.56.0 Qt Version: 5.12.2
*** Bug 408455 has been marked as a duplicate of this bug. ***
https://invent.kde.org/system/dolphin/-/merge_requests/147 should fix this.
Cannot reproduce on Plasma 6 RC2. \o/ Operating System: Arch Linux KDE Plasma Version: 5.93.0 KDE Frameworks Version: 5.249.0 Qt Version: 6.7.0 Graphics Platform: X11