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| -rw-r--r-- | docs/multiseat.txt | 54 |
1 files changed, 31 insertions, 23 deletions
diff --git a/docs/multiseat.txt b/docs/multiseat.txt index a6c71dd..126f39d 100644 --- a/docs/multiseat.txt +++ b/docs/multiseat.txt @@ -46,29 +46,37 @@ You need a pretty recent linux guest. systemd with loginctl. kernel fully updated for the new kernel though, i.e. the live iso doesn't cut it. -Now we'll have to configure the guest. Boot and login. By default -all devices belong to seat0. You can use "loginctl seat-status seat0" -to list them all (and to get the sysfs paths for cut+paste). Now -we'll go assign all pci devices connected the pci bridge in slot 12 to -a new head: - -loginctl attach seat-qemu \ - /sys/devices/pci0000:00/0000:00:12.0/0000:01:02.0/drm/card1 -loginctl attach seat-qemu \ - /sys/devices/pci0000:00/0000:00:12.0/0000:01:02.0/graphics/fb1 -loginctl attach seat-qemu \ - /sys/devices/pci0000:00/0000:00:12.0/0000:01:0f.0/usb2 - -Use "loginctl seat-status seat-qemu" to check the result. It isn't -needed to assign the usb devices to the head individually, assigning a -usb (root) hub will automatically assign all usb devices connected to -it too. - -BTW: loginctl writes udev rules to /etc/udev/rules.d to make these -device assignments permanent, so you need to do this only once. - -Now simply restart gdm (rebooting will do too), and a login screen -should show up on the second head. +Now we'll have to configure the guest. Boot and login. "lspci -vt" +should list the pci bridge with the display adapter and usb controller: + + [root@fedora ~]# lspci -vt + -[0000:00]-+-00.0 Intel Corporation 440FX - 82441FX PMC [Natoma] + [ ... ] + \-12.0-[01]--+-02.0 Device 1234:1111 + \-0f.0 NEC Corporation USB 3.0 Host Controller + +Good. Now lets tell the system that the pci bridge and all devices +below it belong to a separate seat by dropping a file into +/etc/udev/rules.d: + + [root@fedora ~]# cat /etc/udev/rules.d/70-qemu-autoseat.rules + SUBSYSTEMS=="pci", DEVPATH=="*/0000:00:12.0", TAG+="seat", ENV{ID_AUTOSEAT}="1" + +Reboot. System should come up with two seats. With loginctl you can +check the configuration: + + [root@fedora ~]# loginctl list-seats + SEAT + seat0 + seat-pci-pci-0000_00_12_0 + + 2 seats listed. + +You can use "loginctl seat-status seat-pci-pci-0000_00_12_0" to list +the devices attached to the seat. + +Background info is here: + http://www.freedesktop.org/wiki/Software/systemd/multiseat/ Enjoy! |