On 03/18/2013 10:08 AM, Sam Lanning wrote:
On 07/01/13 07:03, Dave Airlie wrote:
On Mon, Jan 7, 2013 at 10:23 AM, Sam Lanning <[email protected]> wrote:
Hi There,
I have a displaylink usb adapter which i have been trying to get working
with my setup for a while.
when i run
xrandr --listproviders
i get the output
Providers: number : 2
Provider 0: id: 106 cap: 0xb, Source Output, Sink Output, Sink Offload
crtcs: 2 outputs: 4 associated providers: 1 name:Intel
Provider 1: id: 68 cap: 0x2, Sink Output crtcs: 2 outputs: 3 associated
providers: 1 name:modesetting
and after running the command
xrandr --setprovideroutputsource 68 106
I get 3 new outputs added to xrandr:
LVDS-0 disconnected
VGA-0 disconnected
HDMI-0 disconnected
that doesn't seem like displaylink to me, the driver will never create
LVDS outputs.
Might want to confirm with a copy of the log file.
Dave.
Hey,
It's been a while (busy with academia) but now i have some time to try
and get this working again.
I'm running on a laptop with optimus, i believe that the second provider
listed above is actually my nvidia card. Now i am aware that the hdmi
port is connected only to the nvidia card, this would match up nicely
with what i have above, i.e. i activated my nvidia card, hence
activating my hdmi output, along with the outputs of the other display
ports (which are connected to both cards)
So it seems my problem at the moment is this:
I have (what i believe to be) the latest display link drivers installed.
When i plug in my usb gpu, i have a new device listed under lsusb:
Bus 002 Device 008: ID 17e9:01d7 DisplayLink
And a new corresponding framebuffer device /dev/fbx appears (although
interestingly it is fb1 sometimes if plugged in at boot).
So my question is, why is it not appearing after calling xrandr
--listproviders (which shows only my integrated and nvidia cards). Any
help would be greatly appreciated.
There are two DisplayLink drivers: udl, and udlfb. In my experience,
the udlfb one creates a /dev/fb* device and is *not* a DRM driver. You
need to unload and/or blacklist that one to let the udl driver do its thing.
The udl driver creates outputs named DVI-*, even if it's really a VGA
device.
--
Aaron
_______________________________________________
[email protected]: X.Org development
Archives: http://lists.x.org/archives/xorg-devel
Info: http://lists.x.org/mailman/listinfo/xorg-devel
