@madbiologist: I experience exactly the same behavior on 12.04.
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https://bugs.launchpad.net/bugs/763052
Title:
Ubuntu can't boot on nvidia GeForce GT240 with
** Changed in: xserver-xorg-video-intel (Ubuntu)
Assignee: (unassigned) = Dariusz Gadomski (dgadomski)
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Title
** Changed in: xserver-xorg-video-intel (Ubuntu)
Assignee: Dariusz Gadomski (dgadomski) = (unassigned)
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Title
/linux-mst.
I will appreciate any feedback.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Assignee: (unassigned) = Dariusz Gadomski (dgadomski)
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https
Vincent, what you could do is to take a look at this instruction:
https://01.org/linuxgraphics/node/358
Based on this you could:
sudo add-apt-repository ppa:dgadomski/linux-mst
sudo add-apt-repository ppa:xorg-edgers/ppa
sudo apt-get update
sudo apt-get install linux-image-3.16.0-19-generic #
Thanks Vincent.
Would you mind giving the patched kernel from ppa:dgadomski/linux-mst a
try? That would allow us to confirm whether the cherry-pick works for
the trusty backport of utopic kernel.
Thanks!
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Thanks for giving that a try Vincent. I believe that the intel driver
needs to be reinstalled for this to work.
Regarding the source code:
Please not that if you uncomment the following line in your
/etc/apt/sources.list.d/dgadomski-linux-mst-trusty.list file
# deb-src
** Tags added: cts
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Title:
DisplayPort 1.2 MST support is missing in the Intel driver
To manage notifications about
Vincent, I missed the setup you use in one of your comments. The kernels
that I have prepared add only one feature: the Multi Stream Transport
(MST) feature of the displayport 1.2, nothing else.
So basically for this to work you need a displayport 1.2 capable device
and a displayport 1.2 monitors
Hi Vincent,
If I understand correctly your docking station performs the role of a dp
mst hub (can you please confirm this with the documentation of your
docking station or provide its model to verify this online?), so it
should be a good setup to test.
Ideally to make this working you would need
Hi Elvis,
Looks like you have the perfect setup to test this case.
Please make sure you have ppa-purge installed so you can revert the
package updates if anything goes wrong.
Please follow these steps:
1. sudo add-apt-repository -y ppa:dgadomski/linux-mst
2. sudo add-apt-repository -y
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
Hi Elvis, unfortunately I do not know that. Please consult your user's
manual. I haven't got access to those monitors. Thank you!
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Thank you guys for testing this. Unfortunately I do not know the cause
with the wireless network problems. I was doing sanity tests of those
kernels on my trusty desktop (with a USB WiFi dongle) and my utopic
laptop (with built-in wifi). In both cases I was able to use my network.
This kernel is
Thanks Vincent. This confirm that probably what I have backported is not
enough to have full MST support. I will try to prepare an updated build
after reviewing David Airlie tree.
I will work on providing an update next week.
Thank you all for testing.
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Hello Elvis,
I have came across something that may interest you, here [1]. The Dell
support person there states that you should have the DSP 1.2 enabled
only on the primary monitor, on the secondary it should be disabled.
[1] http://en.community.dell.com/support-
Hi guys, there is an updated kernel version in my ppa (should become available
any minute):
* trusty: 3.16.0-23.31~14.04.2hf73386v20141028b1
* utopic: 3.16.0-23.31hf73386v20141028b1
I would really appreciate giving any of those a try. The procedure
should be as previously:
1. install the
Thanks Mike. If your docking station is the same as Elvis mentioned
above then this feature should (eventually) make it working.
Can you please double-check:
$ apt-cache policy linux-image-3.16.0-23-generic
whether the installed version you use is:
Installed:
Thanks Matthew.
All the changes from David's backport for 3.16 branch has been cherry
picked to the kernel in my ppa, so I would appreciate any feedback from
using a build from his sources.
If it works with his version then something in Ubuntu kernel may be
blocking this feature.
If anyone is
Elvis, thank you for checking this. I assume that the multi-display
configuration did not work for you as well as the network?
Have you tried running utopic kernel backport on trusty before? Maybe just this
backport does not work.
Does anybody (with the hardware) have utopic (14.10)
aexl, as long as the docking station uses your intel card via a
displayport 1.2 then this may be the case.
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Title:
Matthew, can you please confirm that you don't have 'mirroring'
parameter anywhere on the kernel commandline?
# grep mirror /proc/cmdline
Can you please also post output of:
# find /sys/kernel/debug -name i915_dp_mst_info -exec cat {} \;
Thanks!
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Thanks Matthew!
I will review the changes to trusty and try to backport this feature to
3.13 (to avoid network problems).
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Wouter, I would appreciate anyone with a suitable hardware to stay with
trusty for a couple of days more until we have a working solution.
But if you need the MST feature please move to utopic and give a try the
same build Matthew found working.
There is a new 3.13 build for trusty ongoing in my
That's a good point Matthew. I should have been more clear about it.
Thank you.
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Title:
DisplayPort 1.2 MST support is
Matthew, did you make any investigation why it was not working for you
on your first laptop?
Please share any observation that may help other people here.
Thanks!
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Hello everyone,
The last build was successful so there is a trusty kernel
(3.13.0-39.66hf73386v20141030b1) to be tested in my ppa.
I will appreciate your feedback.
Thank you!
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Thank you Elvis.
Can you please post your output of:
# find /sys/kernel/debug -name i915_dp_mst_info -exec cat {} \;
Have you tried installing the linux-image-extra package for the kernel
you previously tested (3.0.16 - the one that left you without a
network)? If not, I would appreciate
Thank you for the information Matthew.
I didn't notice that because for me without the necessary hardware those
files are empty all the time.
Elvis, did you get any results after installing linux-image-extra?
Thanks!
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What I was referring above was the output of:
# find /sys/kernel/debug -name i915_dp_mst_info -exec cat {} \;
on my system.
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Hello Elvis,
Was it any different for you with the 3.13 kernel?
Thanks,
Dariusz
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Title:
DisplayPort 1.2 MST support
** Description changed:
+ SRU Justification:
+
+ Impact: Many users expect the possibility to use the DP1.2 MST feature which
+ enables them to use a number of different display setups: daisy-chaining
+ DP1.2 displays, some 4K displays appearing as 2 separate displays, 3D
displays.
+ This
Hi Vincent,
There is a 3.13.0-39.66hf73386v20141030b1 version available for trusty. You
should be able to install it with:
sudo add-apt-repository ppa:dgadomski/linux-mst
sudo apt-get update
sudo apt-get install linux-image-3.13.0-39-generic
linux-image-extra-3.13.0-39-generic
And
apt-cache
Thank you Ben, I will review your logs.
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Title:
DisplayPort 1.2 MST support is missing in the Intel driver
To manage
Hi Ben,
I have uploaded new kernel build (version:
3.16.0-26.34hf73386v20141126b1). Could you please give it a try?
Thanks!
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Ben, according to your logs:
[ 11.322] Current Operating System: Linux dib 3.16.0-25-generic
#33hf73386v20141106b1-Ubuntu SMP Thu Nov 6 14:20:03 UTC 2014 x86_64
you have used the previous kernel again. Maybe you made your attempt
right before the packages were published in my ppa.
Looks like
I'm glad it works for you Ben.
To everyone: if we want to get this to the Ubuntu kernel we need more
feedback from people testing this.
Please give the Utopic kernel (3.16.0-26.34hf73386v20141126b1) a try and
leave a comment here. This is a big feature and it would help us to have
it tested.
Elvis, no, sorry, not yet. I was focusing on Utopic as it is the first
step to get it accepted to Ubuntu.
What worries me is that the current build for trusty 3.13 worked for
Wouter (comment #78) and does not work for you. That makes me wonder if
your configuration is even supported by this
Elvis, the only thing I was able to do for you right now is to build you
an Utopic kernel for Trusty (the same that was working for Ben).
Please find it in my ppa. The version number is
3.16.0-26.34~14.04.1hf73386v20141127b1.
Please remember to use also the extras package.
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Krzysztof, looks like you installed the kernel correctly, you are simply
booting into a newer kernel without the feature.
Please make sure you boot using 3.13.0-39.
To do so please choose kernel 3.13.0-39 from the GRUB menu during the
boot of your computer.
You can find more information how do
Krzysztof, you should be using 3.13.0-39 patched by me (the newer
version is the vanilla Ubuntu kernel which does not support MST).
Regarding your question about cables: you should not worry about that.
According to [1]:
Despite what you may read, there is no such thing as a
DisplayPort 1.1
Sorry Krzysztof, this bug is dedicated only to supporting Intel VGAs, so
none of the packages here would solve your problem.
Since you use the proprietary AMD drivers you should examine the
features their driver support and follow their instructions.
Sorry, I have missed the AMD VGA part in the
Krzysztof, you don't have to downgrade the kernel. This is only
necessary with the open-source Intel drivers.
I'm not sure if AMD drivers support Displayport 1.2 MST feature, but I
know that NVIDIA drivers do support it and it does not require anything
special about the kernel.
Please browse
Ben, are you able to compare this behaviour with the 3.17 kernel (e.g.
from debs available at [1])?
If the behavior is consistent between the two kernel version - it's another
issue.
If 3.17 behaves better than the 3.16 you were using - this is the right place
to handle the problem.
[1]
@Ben: if you were using an official Utopic 3.16.0-28-generic kernel,
please note that it does NOT contain support for multiple displays using
MST, so it will not be possible to have non-mirroring displays.
If it is not from the official Utopic repository, please share the
origin of this kernel.
Ben, I have updated the kernel version in my ppa. Could you please test
version 3.16.0-28.37hf73386v20141212b2 and compare the supsend/resume
behavior with what you observer using 3.17?
Thanks!
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Ben, could you paste the output of:
$ apt-cache policy linux-image-$(uname -r)
We need to be sure that you are using the patched version of the kernel
and not the standard Ubuntu kernel.
Thanks!
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Ben, unfortunately this is the default Ubuntu kernel without this
feature.
You need to use version 3.16.0-28.37hf73386v20141212b2 to be able to
benefit from it.
Do install this version you should do:
sudo apt-get install
linux-image-3.16.0-28-generic=3.16.0-28.37hf73386v20141212b2
and then
The current status of this bug is as follows:
- The current xorg stack with intel drivers from ppa:xorg-edgers/ppa is not
compatible with the kernel part backported to 3.13 and 3.16
- This feature seems to work seamlessly on my test hardware with Vivid
- It seems that the best solution will be to
Good point Benjamin. It has been released as one of the Trusty HWE
updates.
Thanks!
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Title:
DisplayPort 1.2 MST
** Description changed:
+ [Impact]
+
+ * Prevents from using X at all with some VIA chipsets - a segfault
+ occurs and is logged in Xorg.log
+
+ [Test Case]
+
+ * Start X on a affected hw (e.g. VX900).
+
+ * Examine Xorg.log after crash.
+
+ [Regression Potential]
+
+ * This is a bug
Fix for xenial.
** Patch added: "xenial_xserver-xorg-video-openchrome_0.3.3-1ubuntu6.debdiff"
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-openchrome/+bug/1554004/+attachment/4594787/+files/xenial_xserver-xorg-video-openchrome_0.3.3-1ubuntu6.debdiff
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** Description changed:
[Impact]
- * Prevents from using X at all with some VIA chipsets - a segfault
+ * Prevents from using X at all with some VIA chipsets - a segfault
occurs and is logged in Xorg.log
[Test Case]
- * Start X on a affected hw (e.g. VX900).
+ * Start X on a
SRU proposal for trusty (changed version number to avoid collision with
Wily)
** Patch removed: "trusty_xserver-xorg-video-openchrome_0.3.3-1ubuntu1.debdiff"
SRU proposal for Wily (changed version number to avoid collision with
Xenial)
** Patch removed: "wily_xserver-xorg-video-openchrome_0.3.3-1ubuntu2.debdiff"
** Tags added: sts sts-sru
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Title:
Segfault on X startup with VX900
To manage notifications about this bug go to:
Works correctly with Trusty. Unfortunately I don't have any feedback for
Wily.
** Tags removed: verification-needed
** Tags added: verification-done-trusty verification-needed-wily
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(In reply to Kevin Brace from comment #17)
Hi Kevin
> I am a little getting lost.
> Are you saying that the current master branch OpenChrome code produces a
> blank screen after OS boots?
That's true.
> One known configuration that causes this is if you use DVI to VGA adapter.
> Another
To the SRU team:
Due to lack of hardware to test it under Wily we can either ignore it (since it
EOLs in 3 moths anyway) or take under consideration the minimal impact and the
fact that it is available in Trusty and Xenial and release it.
It's your call, thank you.
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Public bug reported:
There is a segfault in Xorg.log visible when starting X on Trusty 14.04
with the following hardware:
00:01.0 VGA compatible controller [0300]: VIA Technologies, Inc. VX900 Graphics
[Chrome9 HD] [1106:7122] (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology
** Attachment added: "Full Xorg.log"
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-openchrome/+bug/1554004/+attachment/4591440/+files/Xorg.1.log
** Changed in: xserver-xorg-video-openchrome (Ubuntu)
Assignee: (unassigned) => Dariusz Gadomski (dgadomski)
** Su
** Tags added: se sts
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Title:
[SRU] xserver crashes when hyperv_drm kernel module is loaded on azure
NV series instances w/ nvidia
** Tags added: se-sponsor-dgadomski
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Title:
[SRU] xserver crashes when hyperv_drm kernel module is loaded on azure
NV series
Public bug reported:
On every reboot the following messages are shown in the journal:
/usr/libexec/gdm-x-session[14875]: (II) NVIDIA(GPU-0): Deleting GPU-0
/usr/libexec/gdm-x-session[14875]: (WW) xf86CloseConsole: KDSETMODE failed:
Input/output error
/usr/libexec/gdm-x-session[14875]: (WW)
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