desktop-packages team mailing list archive

[Vincent Gerris <1104230@xxxxxxxxxxxxxxxxxx>]

Hi Dariusz,

Some info, the output of the command you asked for:
*vincent@vincent-Latitude-E7440:~$ apt-cache policy
xserver-xorg-video-intel*
*xserver-xorg-video-intel:*
*  Installed: 2:2.99.916+git20141016.6b98f162-0ubuntu0sarvatt~trusty*
*  Candidate: 2:2.99.916+git20141016.6b98f162-0ubuntu0sarvatt~trusty*
*  Version table:*
* *** 2:2.99.916+git20141016.6b98f162-0ubuntu0sarvatt~trusty 0*
*        500 http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu/
<http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu/> trusty/main amd64
Packages*
*        100 /var/lib/dpkg/status*
*     2:2.99.911-0intel1 0*
*        500 https://download.01.org/gfx/ubuntu/14.04/main/
<https://download.01.org/gfx/ubuntu/14.04/main/> trusty/main amd64 Packages*
*     2:2.99.910-0ubuntu1.1 0*
*        500 http://se.archive.ubuntu.com/ubuntu/
<http://se.archive.ubuntu.com/ubuntu/> trusty-updates/main amd64 Packages*
*     2:2.99.910-0ubuntu1 0*
*        500 http://se.archive.ubuntu.com/ubuntu/
<http://se.archive.ubuntu.com/ubuntu/> trusty/main amd64 Packages*

So I am seem to have the proper driver.

I also tested that driver and your kernel at home on a Dell E6430 with an
Optimus chipset, with Bumblebee set to intel mode.
I got no external monitors recognised (instead of 1, but had 2 connected)
and my external usb from the replicator ports did not work.
Seems like some things are not right on it.

By the way, the source I used to compile my kernel are from the git source
of David Airlie:
commit 91c403ffa85f17b8e349a510f3c32226a025da89
Author: Dave Airlie <airlied@xxxxxxxxxx>
Date:   Mon May 12 15:22:27 2014 +1000
 git://people.freedesktop.org/~airlied/linux

Greetings,
Vincent


On Mon, Oct 20, 2014 at 5:28 PM, Dariusz Gadomski <
1104230@xxxxxxxxxxxxxxxxxx> wrote:

> VIncent, according to [1] this hardware is displayport 1.2 compatible.
> "Plus, the Display Port 1.2 adds the ability to daisy chain displays (4
> displays via 1 connector)."
>
> However, I have not been able to determine whether this works in such a
> way that it takes MST output from your laptop's displayport and
> distributes it via vga and dvi ports.
>
> Do you remember what feature have you been cherry picking to your
> patched kernel? Maybe you were using another feature.
>
> The perfect setup to test this feature is the one Elvishas - daisy
> chained Dell monitors.
>
> Regarding your question on the xorg-edgers driver: can you please try
> sudo add-apt-repository -y ppa:xorg-edgers/ppa
> sudo apt-get update
> apt-cache policy xserver-xorg-video-intel
>
> Please provide the output of the last command. Thanks.
>
> [1]
>
> http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=gen&sku=331-6307
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1104230
>
> Title:
>   DisplayPort 1.2 MST support is missing in the Intel driver
>
> Status in X.org xf86-video-intel:
>   Unknown
> Status in “xserver-xorg-video-intel” package in Ubuntu:
>   Confirmed
>
> Bug description:
>   I have two recent DisplayPort monitors, both supporting the 1.2
>   version of the standard and one containing an MST hub (DELL 2913WM).
>
>   I have an Intel Haswell based NUC connected over mini-displayport to
>   the display containing the hub, then the second display is plugged in
>   that one over DisplayPort.
>
>   DisplayPort 1.2 is enabled on the display containing the hub and the
>   second display lights up fine but just works as a clone of the first
>   display, without ever showing up in xrandr, dmesg or any other useful
>   logs I could find.
>
>   My understanding of MST is that the second display should show up as
>   DP2 on my laptop so I can configure it as I would any other display.
>
>   UPDATE: Updated the bug report after it was pointed out that the
>   original test hardware, a Lenovo x230 isn't DP 1.2 capable. The same
>   test on hardware also fails, due to missing support for MST in the
>   driver.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1104230/+subscriptions
>

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1104230

Title:
  DisplayPort 1.2 MST support is missing in the Intel driver

Status in X.org xf86-video-intel:
  Unknown
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Confirmed

Bug description:
  I have two recent DisplayPort monitors, both supporting the 1.2
  version of the standard and one containing an MST hub (DELL 2913WM).

  I have an Intel Haswell based NUC connected over mini-displayport to
  the display containing the hub, then the second display is plugged in
  that one over DisplayPort.

  DisplayPort 1.2 is enabled on the display containing the hub and the
  second display lights up fine but just works as a clone of the first
  display, without ever showing up in xrandr, dmesg or any other useful
  logs I could find.

  My understanding of MST is that the second display should show up as
  DP2 on my laptop so I can configure it as I would any other display.

  UPDATE: Updated the bug report after it was pointed out that the
  original test hardware, a Lenovo x230 isn't DP 1.2 capable. The same
  test on hardware also fails, due to missing support for MST in the
  driver.

To manage notifications about this bug go to:
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1104230/+subscriptions