It appears that the xinput devices(keyboard/mouse) are being hijacked by desktop? As long as there is user input(keyboard/mouse activity) at least once second within Sauerbraten, everything works as expected in Ubuntu 18.10. Further bug info: I noticed that if you're moving forward with the 'w' key(with no mouse activity), and jump(press 'spacebar') while keeping the 'w' key pressed, the bug returns about a second later. The forward movement stops and the rogue mouse pointer returns to flickering, as if there is no user activity, or as if the user input activity has been cleared/reset. ***If you _don't_ jump while moving forward, the forward movement continues as expected and the rogue mouse pointer stays away. When there is no user input/activity for about 1 second, the flickering mouse pointer returns. Again, everything works as expected in Ubuntu 18.04. Thanks!
PS. Sorting straces of Sauerbraten seem show a similar number of epoll calls as flickers of the rogue mouse pointer, but that was a hack at trouble-shooting and may be unrelated. Thank again! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1800749 Title: Ubuntu 18.10 doesn't like fullscreen mode for sauerbraten(game) Status in gnome-shell package in Ubuntu: New Status in mutter package in Ubuntu: New Bug description: When I run sauerbraten in fullscreen mode in Ubuntu 18.10, there are "skips" in the animation of the rotating cubes. Upon further "evaluation", I noticed the system mouse pointer "popping up" briefly at the moment of the glitch(near the crosshair) about once a second. When not in fullscreen, the animation is smooth(no visible skips/glitches) and I don't see the system mouse pointer "popping up" every second. It works fine in fullscreen mode in Ubuntu 18.04. To recreate/observe the problem: 0. Boot into Ubuntu 18.10 1. Install sauerbraten 2. Start sauerbraten 3. Set sauerbraten to fullscreen mode(sauerbraten->options..->display->fullscreen) 4. Start a game(I like sauerbraten->bot match->start match->ctf->europium) 5. Move forward with the 'w' key(steer with the mouse) to some rotating cubes. Here you should notice the glitch in rotation and the _system_ mouse pointer flickering in and out near the crosshair at a rate of about once a second. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: xorg 1:7.7+19ubuntu8 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperVersion: 1.399 CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Oct 30 21:46:28 2018 DistUpgraded: Fresh install DistroCodename: cosmic DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. 3rd Gen Core processor Graphics Controller [1043:2102] LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: ASUSTeK COMPUTER INC. K55A ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz boot=casper iso-scan/filename=/Downloads/username-18.10-desktop-amd64.iso ipv6.disable=1 net.ifnames=0 quiet splash SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/25/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: K55A.407 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: K55A dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK55A.407:bd12/25/2012:svnASUSTeKCOMPUTERINC.:pnK55A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK55A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: K dmi.product.name: K55A dmi.product.sku: ASUS-NotebookSKU dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.95-1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1800749/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

