** Description changed: - When playing a steam game in "fullscreen" (in this case stellaris) if I - alt-tab out and then back the game is no longer full screen and a - portion the size of the menu bar at the top is reserved, not showing the - menu just a portion of the background colour. Also after this happens - all mouse clicks are offset by that same margin. + Impact + ====== + Using Alt-Tab to leave a fullscreen game and then return breaks the game by offsetting the display by the size of the GNOME Shell top bar. + + Test Case + ========= + 1. Run a game full screen. + + I installed Steam and used Team Fortress 2 because it's free (but a very + large download) + + 2. Press Alt-Tab to switch to another window and then press Alt-Tab to + switch back to the game. + + The game should display and function normally. + + Regression Potential + ==================== + This is fixed by cherry-picking 3 patches from the gnome-3-26 mutter branch. We are eventually expecting a mutter 3.26.2 release but I don't think there is a planned release date yet. + + These patches also fix LP: #1725821 but I was having trouble coming up + with a specific test case for that issue that I could reproduce with my + Intel graphics card. + + The upstream bug mentions that this may re-introduce tearing with full- + screen videos with Firefox because Firefox disables hardware graphics + acceleration on Linux. Personally, I feel that is a Firefox bug and + shouldn't block this fix. + + The issue of poor performance with full-screen games with GNOME 3.26 (a + regression from GNOME 3.24) is a popular complaint in forums and should + be fixed by these patches. + + The upstream branch + -------------------- + https://git.gnome.org/browse/mutter/log?h=gnome-3-26 + + Original Bug Report + =================== + When playing a steam game in "fullscreen" (in this case stellaris) if I alt-tab out and then back the game is no longer full screen and a portion the size of the menu bar at the top is reserved, not showing the menu just a portion of the background colour. Also after this happens all mouse clicks are offset by that same margin. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu4 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Oct 21 12:16:27 2017 DisplayManager: gdm3 GsettingsChanges: - b'org.gnome.shell' b'command-history' b"['ubuntu-bug']" - b'org.gnome.shell' b'favorite-apps' b"['firefox.desktop', 'terminator.desktop', 'emacs25.desktop', 'quodlibet.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Software.desktop', 'gnome-control-center.desktop', 'thunderbird.desktop']" - b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" + b'org.gnome.shell' b'command-history' b"['ubuntu-bug']" + b'org.gnome.shell' b'favorite-apps' b"['firefox.desktop', 'terminator.desktop', 'emacs25.desktop', 'quodlibet.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Software.desktop', 'gnome-control-center.desktop', 'thunderbird.desktop']" + b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" InstallationDate: Installed on 2017-10-13 (7 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-10-21 (0 days ago)
** Summary changed: - [nvidia] Fullscreen games lose "fullscreen" after an Alt+Tab + Fullscreen games lose "fullscreen" after an Alt+Tab ** Package changed: gnome-shell (Ubuntu) => mutter ** Bug watch added: GNOME Bug Tracker #788493 https://bugzilla.gnome.org/show_bug.cgi?id=788493 ** Changed in: mutter Importance: Undecided => Unknown ** Changed in: mutter Status: Confirmed => Unknown ** Changed in: mutter Remote watch: None => GNOME Bug Tracker #788493 ** Changed in: mutter (Ubuntu) Status: Confirmed => Fix Committed ** Also affects: mutter (Ubuntu Artful) Importance: Undecided Status: New ** Changed in: mutter (Ubuntu Artful) Status: New => In Progress ** Changed in: mutter (Ubuntu) Importance: Undecided => Medium ** Changed in: mutter (Ubuntu Artful) Importance: Undecided => Medium -- 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/1725649 Title: Fullscreen games lose "fullscreen" after an Alt+Tab Status in Mutter: Unknown Status in mutter package in Ubuntu: Fix Committed Status in mutter source package in Artful: In Progress Bug description: Impact ====== Using Alt-Tab to leave a fullscreen game and then return breaks the game by offsetting the display by the size of the GNOME Shell top bar. Test Case ========= 1. Run a game full screen. I installed Steam and used Team Fortress 2 because it's free (but a very large download) 2. Press Alt-Tab to switch to another window and then press Alt-Tab to switch back to the game. The game should display and function normally. Regression Potential ==================== This is fixed by cherry-picking 3 patches from the gnome-3-26 mutter branch. We are eventually expecting a mutter 3.26.2 release but I don't think there is a planned release date yet. These patches also fix LP: #1725821 but I was having trouble coming up with a specific test case for that issue that I could reproduce with my Intel graphics card. The upstream bug mentions that this may re-introduce tearing with full-screen videos with Firefox because Firefox disables hardware graphics acceleration on Linux. Personally, I feel that is a Firefox bug and shouldn't block this fix. The issue of poor performance with full-screen games with GNOME 3.26 (a regression from GNOME 3.24) is a popular complaint in forums and should be fixed by these patches. The upstream branch -------------------- https://git.gnome.org/browse/mutter/log?h=gnome-3-26 Original Bug Report =================== When playing a steam game in "fullscreen" (in this case stellaris) if I alt-tab out and then back the game is no longer full screen and a portion the size of the menu bar at the top is reserved, not showing the menu just a portion of the background colour. Also after this happens all mouse clicks are offset by that same margin. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.1-0ubuntu4 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.7-0ubuntu3 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Oct 21 12:16:27 2017 DisplayManager: gdm3 GsettingsChanges: b'org.gnome.shell' b'command-history' b"['ubuntu-bug']" b'org.gnome.shell' b'favorite-apps' b"['firefox.desktop', 'terminator.desktop', 'emacs25.desktop', 'quodlibet.desktop', 'org.gnome.Nautilus.desktop', 'org.gnome.Software.desktop', 'gnome-control-center.desktop', 'thunderbird.desktop']" b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'" InstallationDate: Installed on 2017-10-13 (7 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-10-21 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1725649/+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
