The bug is back at 16.04 32bit with a slight variation: relates also to dedicated GPUs, normal desktop works somewhat slow but normal, changing resolution or inflicting high video load makes compiz and therefore X11/lightdm crash/blackscreen/restart lightdm (eg starting frozen bubble in full screen will restat lightdm). Using dconf write /org/compiz/profiles/unity/plugins/opengl/enable-x11-sync false fixes all problems.
Ubuntu is pretty mint 16.04 install with current upgrades and NVidia drivers: nvidia-304 304.131 compiz 1:0.9.12.2+16.04.20160415-0ubuntu1all 00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02) 00:01.0 PCI bridge: Intel Corporation 82P965/G965 PCI Express Root Port (rev 02) 00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02) 00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02) 00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02) 00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02) 00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2) 00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02) 00:1f.2 SATA controller: Intel Corporation 82801HB (ICH8) 4 port SATA Controller [AHCI mode] (rev 02) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02) 01:00.0 VGA compatible controller: NVIDIA Corporation G73 [GeForce 7600 GS] (rev a1) 03:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 02) 03:00.1 IDE interface: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 02) 04:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 22) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1424013 Title: Compiz high CPU and UI freeze on NVIDIA after fix for #269904 in trusty-updates To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1424013/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
