[Bug 1492778] Re: kde crashes when powering on/off monitor
Same problem, but with gnome. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/kdelibs/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
I had this problem using Kubuntu 16.04 and KDE 5.5.5. A workaround that worked for me was to change the compositor via System Settings, Display and Monitor, Compositor, Rendering backend, set to XRender. I can now turn the TV off and on again without it freezing KDE. This workaround came from the following page: https://unix.stackexchange.com/questions/219073/how-to-enable-plasma-kde-automatic-restart-upon-freeze -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/kdelibs/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
Please: 1. Report this bug to https://bugs.kde.org/. 2. Paste the new report URL here. 3. Set this bug status back to "confirmed". Thank you. ** Changed in: kubuntu-meta (Ubuntu) Status: Confirmed => Incomplete ** Also affects: kdelibs Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/kdelibs/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
@mmarley, comment #12: see also bug #1450137 (Qt5 applications crash when switching screens) since you are using Xenial 16.10 Removing tag= xenial here since this is another shoe, with newer version of Qt ** Tags removed: xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
** Changed in: kubuntu-meta (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
hi! would be nice if some of you could confirm bug #1516837 ([update request] SDDM 0.13.0 released on Nov. 4th) and bug #1519564 ([merge request] SDDM 0.12.0 released on Sept. 5th) Just click on "Yes, this bug affects me too!". Once the Update (0.12) is packaged in Xenial we could ask to have it backported at least into Wily. Was also reported upstream: https://bugreports.qt.io/browse/QTBUG-42985 (Qt GUI application disappear or crash when no screens are available) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
** Tags added: kubuntu vivid wily xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
forgot the following: what I can see in the console (Ctrl+Alt+F1) after a crash is: policykit daemon disconnected from the bus. we are no longer a registered authentication agent -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
Crash of sddm/kde/plasma/X also occurs when switching off the (only) UHD monitor connected via - displayport under kubuntu 15.10, - geforce 850 graphics card and nvidia-352.63 driver. Sometimes virtual console (Strg+Alt+F1) is still accessible and X can be restarted via init 3; init 5, often not even the virtual console is visible and the computer needs a reboot. Adding workaround of squarooticus in xorg.conf Section "Screen" Identifier "Screen0" DefaultDepth 24 Option "MetaModes" "DFP-3: 3840x2160 +0+0, DFP-4: 3840x2160 +3840+0" Option "ConnectedMonitor" "DFP-4, DFP-6" EndSection (where DFP-3 is the only existing monitor) did not help here. This makes the distro unusable (and I switched from OpenSuSE to kubuntu to try a better distro :-( ) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
This seems like a bit of a design flaw in KDE/Plasma. I've tested several other desktops are not suffering this issue with their product. Wouldn't the real bug be that Plasma cannot run without outputs? Why are we accepting a segv as a legitimate response when all outputs vanish? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
Sorry, I forgot to mention, I have a setup very similar to ~krose with an Nvidia card and two Dell 4K monitors connected by DisplayPort. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
When 16.04 gets Qt 5.5, this is about to get a lot worse. Qt 5.5 apparently (I tested https://launchpad.net/~ci-train-ppa- service/+archive/ubuntu/landing-012) handles the monitor hotplugging differently and it causes kdeinit5 to crash (dumping me back to sddm) *every time* I move the mouse to wake the displays from sleep mode. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
So, FYI, the NVidia driver also suffers from this: turn off a monitor and Plasma crashes; turn off both monitors and X crashes. There is a workaround with the nvidia proprietary driver: specify your connected displays in xorg.conf. Mine looks like this: Section "Screen" Identifier "Screen0" DefaultDepth24 Option "MetaModes" "DFP-4: 3840x2160 +0+0, DFP-6: 3840x2160 +3840+0" Option "ConnectedMonitor" "DFP-4, DFP-6" EndSection This says that DFP-4 and DFP-6 are connected, and have the specified initial resolutions and positions. Now, when I turn a monitor off, absolutely nothing happens: X thinks the monitor is still on, which means Plasma doesn't notice the change and doesn't crash. w00t. The other problem I had was that even with this X wouldn't activate the second display (both are Dell P2715q) when it started because it had switched to power saving mode, so X came up in single-head mode on the same display as the virtual console. The following command line activates the second display: xrandr --output DP-4 --pos 3840x0 --mode 3840x2160 Note that the output name doesn't match the ConnectedMonitor name from the NVidia driver. Yeah, there are two names for everything. Awesome, right? Anyway, it would be nice to get a fix for this, but that depends on there being a way to distinguish between "I unplugged the monitor", "I shut the monitor off", and "the monitor went into power saving mode". If there isn't, then my vote is in favor of doing something intelligent in the usual case, which is that it's way more likely my monitor went into power saving mode than that I disconnected it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1492778] Re: kde crashes when powering on/off monitor
** Summary changed: - intel nuc - kde crashes when powering on/off monitor + kde crashes when powering on/off monitor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when powering on/off monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
