My issues with kde tend to be sort of a slow destabilization that occurs over time, or triggered quickly with shutting off a single (or more) display.  I push the system pretty hard usually, it's no slouch either, but I run into lots of weirdness that just builds with time, usually after about a week of use, it starts getting crazy broken.

My other sin is still the radeon hardware - I wouldn't be surprised if it is a root of evil in some way.  The nvidia 10x0 cards are finally becoming available|not scalped, and hoping they start trickling into ebay quickly when people get over them.

This one for example, taskbar animations freak out - this is one of the things that seemed might be causing my cpu spikes, task items start flickering back and forth enough to cause a seizure (great use for this 60hz!):

https://bugs.kde.org/show_bug.cgi?id=356479

This one causes my task bar to bounce back and forth between 3 monitors, despite whatever I set it to.  Sometimes as I'm using them... Makes for slightly fun drunken-like computing experiences:

https://bugs.kde.org/show_bug.cgi?id=356225

This one affects me most right now - when my 4k tv's shut off (display blank timeout, or shut down manually for night), the kwin moves everything around, and can't cope with a lack of an active real monitor when they're not present:

https://bugs.kde.org/show_bug.cgi?id=340267

There's just been a ton of things that it's just - wonky.  I still find kde far nicer to use (when working right) than cinnamon or mate, trying both again recently with kde driving me nuts.  The things we subject ourselves to simply to *not* have to use windoze...

-mb



On 07/22/2016 08:49 PM, Stephen Partington wrote:

Well the only issue I am running into is with the weird sliding issue of the one display. I am running 16.04 and really have not run into the other issues.

And Wayland is being stubborn ad well.


On Jul 22, 2016 7:39 PM, "Michael Butash" <michael@butash.net> wrote:
I bet you do - kde has some real bastard issues with multi-monitor I've been finding.

If you're on 14.04, you're mostly hozed - they didn't fix kde remembering display setups until plasma 5.x.  This alone drove me into the 16.04 adventure with plasma 5.

I was actually just digging through their bugs when I saw this, there are a ton of issues with current releases in ubuntu and everything really, plasma 5.5 to current 5.7.1 all seem affected.

Now with 16.04 and plasma 5.5 on here, it remembers where my monitors go, but about everything else is broken.  Someone decided to remove a particular null monitor feature in kde that destroys it's ability cope with displays disappearing as things toggle around with xrandr functions, causing kwin, plasma, and about every other aspect of kde to freak out.  Now they seem to be trying to put it back, but so far everyone is still broken in 5.7.1.

Sadly most of these issues relate I found in the kde trackers around these issues are a year or more old, and they don't seem great about actually fixing old/persistent problems.  Seems they just keep making new features without fixing the old ones, like monitor placement in plasma 4. 

Easy for them to say "just upgrade to 5", but not when it requires a distro release upgrade, and then finding it is even more broken is slightly infuriating.

-mb


On 07/22/2016 09:07 AM, Stephen Partington wrote:
Odd KDE multi-monitor behavior with Optimus.

I have it working, and for the most part its great. But what i am getting now is some really strange behavior with Nvidia and Intel graphics.

Everything comes up and renders beautifully. I can even arrange them and move things back and forth. But anytime i move to the Intel controlled monitor (in this case laptop display) it slides the Nvidia controlled screens off to the side (or up if i set it below).

I have no idea where this behavior is controlled from and my google searching is coming up with nothing like it before. And while technically functional its kind of weird and not very helpful behavior.


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