I'm not sure if you can set a rule to disable compositing whenever any window is maximized. What, however, does affect performance on my system is GPU-accelerated HD video decoding along with compositing. If compositing is enabled and the rule specifies to disable compositing, while any matching window exists, compositing will be disabled. The second part Thomas has been working on is allowing applications to block compositing. We'll assume you're ok with this, but you can opt-out if you wish. Plasma on the other hand just needs to switch the rendering of SVGs (which is part of the style) and will lose some functionality, such as thumbnails in taskbar tooltips, Present Windows effect or Desktop Grid. “Please turn compositing down (implementation is vague here, but I guess you could swap to XRender, or turn off heavy postprocessing such as blur and the like). Tip: Disable desktop effects in KDE and Xfce for a better gaming experience Gaming Hello everyone, recently I started noticing that my games are stuttering even though they were reporting high framerates (especially in CS:GO and rocket league). And I know that is only a small fraction of the Linux games available (I think the Packman repo had at least that many games that were not also present in the openSUSE repo). Currently the fallback is also GNOME Panel, in future maybe Unity2D? KWin Now Supports Suspended Compositing « Linux « Technology « Theory Report, Welcoming a new OpenGL Compositor « Martin’s Blog. Just press Alt+Shift+F12 (or for the more technical users: use a script to change the state through DBus) to suspend compositing. Those trying to learn how to move more efficiently through the Plasma desktop, check Global shortcuts, as this area houses all the different keyboard combos related to that. If KDE is run remotely via an XDMCP session it performance is bad, really really bad. Another big thumbs up for getting the right abstraction layers. Click the KDE Kickoff menu and select Configure Desktop. On Windows keyboards, this is usually Windows key with a Windows logo. martin’s assertion. About the original problem, I think some real life benchmarks should be done, if the gpu is very power hungry and even better in the case of hybrid gpu, then it might save some minutes. The applications will take care of providing the right user experience to the users. This blog post is in fact a direct consequence of the discussion of the mailing list: we need to have a proper infrastructure in place to go the way. i dont want to wait 2 or 3 years for it to happen when i need it to do it today. We don’t have many of those in Linux – KPat is not a problem. not fullscreen but just too expensive (for your particular system) is rather a job for the rules. Before installing Plasma, make sure you have a working Xorg installation on your system.Install the plasma-meta meta-package or the plasma group. Imagine a user notification would pop up. Under Windows compositing is re-enabled then but there are a few cases which make that automatic procedure that looks great on paper a mess in reality. For games there is only one proper solution: turn off compositing. Since last year when i bought new pc i never used kde without compositing, altough the option to disable it manually should always be here, sometimes when you update drivers compositing can crash your xserver because of buggy driver update and without having option to disable it, that would be impossible to investigate the problem. What, however, does affect performance on my system is GPU-accelerated HD video decoding along with compositing. New comments cannot be posted and votes cannot be cast. And there are many non open source ones too. Even stupid people have a right to live. Just a short note on compositing and battery usage: I have a shitty NVIDIA GPU in my laptop that stays at it’s highest power use when compositing is on but can go to 2D mode when compositing is off. I personally doubt that turning compositing off will save battery, but will cause a further drain. The answer about gpus with driver problems is also bad. That will also hit GNOME Shell. That depends on how Firefox implements it, but in general I would say that Firefox should never set the property. for all those cases there is the windows rule frameork and there is nothing wrong about sharing those rules over collaboration services. Mozilla Firefox Disable smooth scrolling Fantastic work! You now have the possibility to move clips and compositions with your keyboard. Screen freezes, kwin_x11 takes up 100% of one cpu core and becomes "unkillable" (except with -9). With unredirection compositing would be started again, causing an ugly flickering and taking away important resources from VLC. For powersaving one should consider to use the XRender backend (completely spares the pixmap -> texture conversion. So we give for the unexperienced users the overall best choice but keep the ability to control every aspect for the advanced users. You say that the average user should not be aware that there is such a thing as compositing and I agree with that, but I wonder: how is that realizable when (1) compositing from time to time gets so slow that it gets disabled (and the user experience is: “suddenly the desktop looks so different and why does all of a sudden ‘present windows’ not work anymore?
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