2014-10-24 9:58 GMT+02:00 Daniel Vratil <dvra...@redhat.com>: > Hi all, > > the current state of multi-monitor support in Plasma 5 is rather bad as both > Plasma 5 and KWin keep crashing every time there's any change (+ the desktop > is extremely sluggish for about 15 seconds after that). Many colleagues in my > office would love to switch to Plasma 5 already, but this is one of the major > blockers that scares most people away, so it needs to be fixed. > > I was looking into plasmashell code to fix it (and also for a different > reason, more on that later) and realized that the code is mixing use of > KScreen and QScreen, and I couldn't resist asking myself why. QScreen provides > subset of information that KScreen and all I can see in the code is just > endless conversion between QScreen and respective KScreen::Output and hoping > they both behave the same. Would it make sense to get rid of QScreen > completely and use KScreen exclusively? I think it would solve most of the > crashes I'm currently getting. I'm of course volunteering to do all the work, > but before I start, I want to make sure there's no real obscure reason for > keeping both QScreen and KScreen. > > Cheers, > Daniel > > (For the "other reason I was looking into plasmashell": I'm currently working > on a big KScreen API and design changes, which includes using QSharedPointers, > having async API, and running platform backends in a separate process to > improve performance and stability, but I'll send a separate email on that once > the API is finished, as that will affect all KScreen-enabled applications) >
I can think of one reason why QScreen would be better: for Wayland support. A wl_output can be taken from a QScreen easily using the platform native API, how do we do with KScreen? As far as I know there was some work going on to make QScreen better. I think it's worth checking plasmashell can finally use it. > -- > Daniel Vrátil | dvra...@redhat.com | dvratil on #kde-devel, #kontact, #akonadi > Software Engineer - KDE Desktop Team, Red Hat Inc. > > GPG Key: 0xC59D614F6F4AE348 > Fingerprint: 4EC1 86E3 C54E 0B39 5FDD B5FB C59D 614F 6F4A E348 > _______________________________________________ > Plasma-devel mailing list > Plasma-devel@kde.org > https://mail.kde.org/mailman/listinfo/plasma-devel > -- Out of the box experience http://www.maui-project.org/ _______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel
