As requested by @wxl To re-produce I only had to
1. login using openbox 2. right click and open terminal 3. drag terminal around screen using mouse; everywhere it left trails/images I tried a number of boxes (could not replicate), the box I could replicate it on was 18.04.4 LTS qa-install (from last week); kubuntu with lubuntu-desktop added Kernel : 5.3.0-40-generic lshw reports 'driver=nouveau' guiverc@dx6120-kub-18044:~$ sudo lshw -C video [sudo] password for guiverc: *-display description: VGA compatible controller product: G73 [GeForce 7600 GT] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:27 memory:f1000000-f1ffffff memory:e0000000-efffffff memory:f2000000-f2ffffff ioport:1000(size=128) memory:c0000-dffff ** Attachment added: "`lsmod >lsmod.txt` of dx6120 box it was reproduced on" https://bugs.launchpad.net/ubuntu/+source/openbox/+bug/1862756/+attachment/5328062/+files/lsmod.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1862756 Title: Openbox leaves a trail on new windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openbox/+bug/1862756/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs