Em 03/03/2014 12:19, "Daniel J Blueman" <[email protected]> escreveu: > > On 3 March 2014 22:52, Laércio de Sousa <[email protected]> wrote: > > Em 02/03/2014 17:38, "Laércio de Sousa" <[email protected]> escreveu: > >> Em 02/03/2014 16:22, "Daniel J Blueman" <[email protected]> escreveu: > >> > Using Ubuntu 13.10 i686 and the superb work in the ubuntu-multiseat > >> > PPA, I run a configured X server on a dual-output Intel GPU (started > >> > from a modified lightdm upstart script [1]): > >> > # /usr/bin/Xorg :0 -nolisten tcp vt7 > >> > > >> > then start configured [2] lightdm, which in turn runs the Xephyr > >> > wrapper [3]. Both user sessions start; so far so good. > >> > > >> > Since I need to also attach touchscreen and sound to the screens, I > >> > have to use udev tags, so I assign a mouse the 'seat1' tag [4,5] and > >> > it isn't listed in 'loginctl seat-status seat0' as expected, but it > >> > doesn't move the cursor on the second head (or first). > >> > > >> > loginctl shows only a single seat, despite both Xephyr servers being > >> > passed '-seat seat0' and '-seat1' (which isn't listed in 'Xephyr > >> > -help): > >> > $ loginctl list-seats > >> > SEAT > >> > seat0 > >> > > >> > 1 seats listed. > >> > > >> > Any idea what I'm missing? > [] > >> In order to create a new seat in logind, you need to have at least one > >> device udev-tagged as master-of-seat attached to it. Try to write a udev > >> rule that tags one of your seat1 devices as master-of-seat. > > > > Moreover, you also need a Xephyr built with configure option > > --enable-kdrive-evdev (like the one available in Multiseat PPA). Then you > > need to pass explictly the devpaths of your input devices to Xephyr with > > options -keybd and -mouse. Xephyr doesn't recognize option -seat directly. > > Yes, that seems to be what I'm finding. The updated udev rules [1] > work nice [2], but the mouse from the Xephyr seat0 can move onto the > seat1 screen, despite: > > $ ps -ef > [] > /usr/bin/Xephyr -zaphod -fullscreen :1 -seat seat0 -auth > /var/run/lightdm/root/:1 -nolisten tcp > /usr/bin/Xephyr -zaphod -fullscreen :2 -seat seat1 -auth > /var/run/lightdm/root/:2 -nolisten tcp > > For the system I'll be setting up, there will be three touchscreen > monitors with sound via HDMI on a triple-output Intel GPU, so I'm out > of luck with the -mouse and -keybd options. > > Maybe you or Richard know if anyone has had any luck with eg MDM or > other solutions (Wayland?), rather than Xephyr?
Well... I'm working on a binary wrapper for Xephyr (see http://launchpad.net/multi-seat-xephyr) that does almost everything you want. I've used it quite well in openSUSE, but I didn't package it for Ubuntu yet. Maybe I can build the Ubuntu package this week. Regards, > > Thanks, > Daniel > > -- [1] /etc/udev/rules.d/99-multiseat.rules > > DEVPATH=="/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2", > ENV{ID_SEAT}="seat1", TAG+="master-of-seat", TAG+="seat1", TAG+="seat" > > -- [2] > > $ loginctl list-seats > SEAT > seat0 > seat1 > > 2 seats listed. > > $ loginctl seat-status seat1 > seat1 > Sessions: *c4 > Devices: > └─/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2 > [MASTER] usb:1-1.2 > > └─/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input6 > input:input6 " USB OPTICAL MOUSE" > -- > Daniel J Blueman
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