What about your lightdm.log file? And your Xorg.1.log? Any suspect message?
Em qua, 17 de dez de 2014 18:41, Andrzej Pietrasiewicz < andrzejtp2...@gmail.com> escreveu: > Regarding the doubt whether not coming back of seat-1 greeter is caused > by the screenscaver kicking-in: that is not the case. I checked again > and did a quick suspend and then resume and then looked up the > x-1-greeter.log and there was no line about the screensaver. It does > activate but far later than the failed suspend/resume. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1209008 > > Title: > [SRU] X doesn't work for video cards with non-KMS drivers on non-seat0 > seats > > Status in X.Org X server: > Fix Released > Status in xorg-server package in Ubuntu: > Fix Released > Status in xorg-server source package in Trusty: > Fix Committed > > Bug description: > [Impact] > > * In Xorg-server versions older than 1.16, if Xorg is started as a > non-seat0 X server (i.e. if it was started with "-seat XXXX" option > where "XXXX" != "seat0"), it only probes platform bus for graphics > devices, leaving devices with non-KMS drivers (like NVIDIA proprietary > drivers and old ones like xf86-video-siliconmotion) unreachable. > > Patch "xfree86_allow_fallback_to_pci_bus_probe_for_non_seat0.patch" > from lp:~ubuntu-multiseat/xorg-server/trusty-matchseat fixes this. > > * systemd-logind has no intrinsic mechanism to assign non-KMS graphics > devices to seats. In this case, one should tag another seat device > (keyboard, USB hub, etc.) in udev as "master-of-seat", and provide a > suitable xorg.conf for that seat. In order to avoid that a given > xorg.conf affects other seats, it should be passed to Xorg via > "-config xorg.conf.custom" option, which requires X server command > line customization support in DM in use (GDM, for example, has no such > support). > > Patch "xfree86_add_matchseat_key_to_xorg_conf.patch" from lp:~ubuntu- > multiseat/xorg-server/trusty-matchseat introduces a new MatchSeat key > for xorg.conf sections "Device", "Screen", and "ServerLayout", which > will target a given seat only. Example file > /etc/X11/xorg.conf.d/90-seat-1.conf: > > Section "Device" > Identifier "card0" > Driver "nvidia" > Option "NoLogo" "True" > # This section will only apply for seat-1 > MatchSeat "seat-1" > EndSection > > * systemd-logind can't handle any VT switching for non-seat0 seats, > but Xorg-server older than 1.16 still opens VT even if it's started as > a non-seat0 X server. This may lead to a race condition between X > servers: if a non-seat0 one is started before a seat0 one, the former > "steals" VTs from the later. If a seat0 X server can't open VTs, > systemd-logind can't activate sessions for seat0, leaving user without > sound or usb input support, for example. > > Patch "xfree86_keep_non_seat0_from_touching_vts.patch" from lp > :~ubuntu-multiseat/xorg-server/trusty-matchseat fixes this. > > [Test Case] > > * Set up a multiseat system where your non-seat0 seats use non-KMS > video drivers (you may need to tag another device in udev as "master- > of-seat" in order to achieve it). > > * When LightDM/GDM tries to start a Xorg server for your non-seat0 > seats, it will end up with the following error: "(EE) No devices > found". > > * After applying > xfree86_allow_fallback_to_pci_bus_probe_for_non_seat0.patch, you can > configure your seats in LightDM by setting appropriate "xserver- > config" properties for each seat. However, you can't configure them in > GDM. > > * After applying xfree86_add_matchseat_key_to_xorg_conf.patch, > configure your seats properly and restart LightDM/GDM services (or > reboot your computer) repeatedly. In some iterations, it may happen > that logind can't activate graphical sessions for seat0. If it occurs, > check output of command "ps -FC Xorg" and you'll see that a non-seat0 > Xorg server has a lower PID than seat0 one. Moreover, the non-seat0 > has opened a TTY, while the seat0 hasn't. > > [Regression Potential] > > * Very low. All these patches were well tested in xorg-server "trusty" > package available in ppa:ubuntu-multiseat/ppa. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/xorg-server/+bug/1209008/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1209008 Title: [SRU] X doesn't work for video cards with non-KMS drivers on non-seat0 seats To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1209008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
