[systemd-devel] loginctl - multi-seats

[Damian Ivanov]

Yeah, so tl,dr what this is trying to say with one GPU and two
connectors, no multiseat possible using logind (yet, though this
was/is a planned feature). This is not a systemd/logind problem rather
than the driver provides you only one path per GPU (not a seperate per
port/connector). You could get some cheap displaylink device (must be
usb 2!!) like http://plugable.com/products/uga-165/ or a usb hub with
displaylink device (which I own and it can be used as a connect the
monitor and 4 usb devices + Network interface + audio input/output or
as an usb docking station)
http://www.amazon.com/Plugable-Universal-DisplayLink-1920x1080-High-Speed/dp/B002PONXAI/ref=sr_1_1?s=electronics&ie=UTF8&qid=1408819630&sr=1-1&keywords=plugable+usb+2.0+docking+station
(and this is device has even a preset rule shipped with udev that by
just plugging it in a new seat is created and everything attached to
that docking station is part of the seat)

2014-08-23 20:33 GMT+02:00 poma <pomidorabelisima at gmail.com>:
> On 23.08.2014 19:21, arnaud gaboury wrote:
>> I do not understand why I can't see any output about my
>> /sys/class/drm/card0 when running
>> ------------------------------
>> $ loginctl seat-status seat0
>> The only entry I see referring to graphics is this line (I boot in EUFI).
>>   ├─/sys/devices/platform/efi-framebuffer.0/graphics/fb0
>>                   │ [MASTER] graphics:fb0 "EFI VGA"
>> ------------------------------
>> I understand there is by default NO card assigned to seat0 ? Shall I
>> then attach one?
>>
>> As mentioned in previous post, card0 is now attached to seat1
>> ------------------------------
>> $ udevadm info -q env -p /sys/class/drm/card0
>> DEVNAME=/dev/dri/card0
>> DEVPATH=/devices/pci0000:00/
>> ~~~~~~~~
>> TAGS=:seat:seat1:uaccess:
>> ----------------------------
>>
>> Shall I have some kind of card1 attached to seat0 ?
>>
>>
>> It seems to me that in Poma config files, there is card0 and card1. As
>> for my hardware, I have only one card, the nvidia 770, with two
>> connectors.
>> ----------------------
>> ls /sys/class/drm/
>> card0@  version
>> ---------------------
>>
>> Please, let me see the light :-)
>>
>
> :)
> http://www.freedesktop.org/wiki/Software/systemd/multiseat
> ...
> Definition of Terms
> - A *seat* consists of all hardware devices assigned to a specific workplace. It consists of at least one graphics device, ...
>
>
> poma
>
> _______________________________________________
> systemd-devel mailing list
> systemd-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/systemd-devel