** Summary changed: - monitors.xml is not parsed or applied correctly after reboot or shutdown + monitors.xml is not parsed or applied correctly during login after reboot or shutdown
** Description changed: WORKAROUND: replace gdm3 with slick-greeter + lightdm-settings + gnome- screensaver + numlockx(optionally) TL;DR After a clean install of Ubuntu 18.10, connecting a FHD(1920x1080) LED monitor to the VGA port of a DELL Optiplex 390 desktop tower, connecting - a wireless HDMI Tx/Rx(LKV HDbitT-4K) to the HDMI port with a 4K + a wireless HDMI Tx/Rx(LKV HDbitT-4K) to the HDMI port with a FHD projector and then configuring the logical monitor layout in the "Displays" settings dialog, I can successfully create and use a multi monitor setup in my current session. However, upon a reboot or power cycle of the computer and a successful login from GDM(gdm3), the HDMI goes dark(blank?) and the VGA monitor shows as 'Secondary' monitor even though I set it as 'Primary' in the "Displays" dialog. The monitors.xml file, attached, shows the correct layout and survives the reboot without alteration. I am unable to see anything on the 'Primary' display, which has incorrectly been given to the HDMI projector. Unseating the HDMI cable does not restore the VGA to 'Primary' display automatically and I must reboot the computer while leaving the HDMI unplugged in order to restore my ability to see the 'Primary' display on the VGA connection. Replacing GDM(gdm3) with LightDM(slick-greeter) fixes the issue and is repeatedly provable through multiple reboots or changes to the logical layout of the screens in the 'Displays' settings of gnome-control- center. ERRORS(syslog) = "Failed to get current display configuration state: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.gnome.Mutter.DisplayConfig" does not exist" gnome-shell[3007]: JS ERROR: Exception in callback for signal: loaded: TypeError: monitor is null#012_prepareStartupAnimation@resource:///org/gnome/shell/ui/layout.js:653:17#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_loadBackground/signalId<@resource:///org/gnome/shell/ui/layout.js:608:13#012_emit@resource:///org/gnome/gjs/modules/signals.js:128:27#012_init/id<@resource:///org/gnome/shell/ui/background.js:512:17 CAUSE = clean install of Ubuntu 18.10(4.18.0-16-generic #17-Ubuntu SMP Fri Feb 8 00:06:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux), attach VGA as primary monitor and HDMI(wireless Tx) as secondary to projector and then apply custom monitor positioning using g-c-c "Displays" panel. RESULT = correct positioning and working of multiple displays until reboot or shutdown and then subsequent login from gdm3. HDMI monitor(projector) goes blank and the VGA monitor only shows 'Secondary' monitor screen without any user visible controls or windows as they are all being painted to the now blanked 'Primary' HDMI connected display. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: gdm3 3.30.1-1ubuntu5.1 ProcVersionSignature: Ubuntu 4.18.0-16.17-generic 4.18.20 Uname: Linux 4.18.0-16-generic x86_64 ApportVersion: 2.20.10-0ubuntu13.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Mar 16 13:50:52 2019 InstallationDate: Installed on 2019-03-07 (8 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) SourcePackage: gdm3 UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1820423 Title: monitors.xml is not parsed or applied correctly during login after reboot or shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1820423/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
