Public bug reported: I cannot reproduce it but it seems to me it is triggered when I open a "file selection" widget. I canno switch between windows with ALT+TAB, I cannot iconize or resize windows (no window widgets and handles). If I am lucky I can use the "K" button to logout e log back in. I am available to help troubleshooting provided that precise directions are provided.
ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: kwin-x11 4:5.5.5-0ubuntu1 Uname: Linux 4.4.10-040410-lowlatency x86_64 NonfreeKernelModules: nls_iso8859_1 8812au cfg80211 pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv rfcomm bnep btusb btrtl btbcm btintel xt_multiport iptable_filter ip_tables x_tables ath3k bluetooth input_leds hp_wmi intel_rapl snd_hda_codec_realtek sparse_keymap x86_pkg_temp_thermal snd_hda_codec_generic intel_powerclamp coretemp kvm_intel snd_hda_intel kvm snd_hda_codec irqbypass snd_hda_core crct10dif_pclmul snd_hwdep crc32_pclmul snd_pcm aesni_intel snd_seq_midi aes_x86_64 snd_seq_midi_event lrw snd_rawmidi gf128mul glue_helper snd_seq ablk_helper cryptd snd_seq_device snd_timer serio_raw snd mei_me mei soundcore lpc_ich shpchp 8250_fintek mac_hid parport_pc ppdev lp parport autofs4 xfs uas usb_storage raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 multipath linear hid_generic usbhid hid raid0 i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt psmouse ahci fb_sys_fops r8169 libahci drm mii wmi fjes video ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: KDE Date: Mon May 16 15:56:26 2016 InstallationDate: Installed on 2016-04-22 (23 days ago) InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: kwin UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: kwin (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug third-party-packages xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1582246 Title: Randomly I am left without windows decoration and other window-related function To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1582246/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs