** Tags added: ubuntu-certified
** Tags added: cscc
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Title:
External monitors does not work anymore 4.15.0-44
Status in linux
I have this issue, but with kernel 45, I had to revert back to 44. With
Dell Vostro 15 7580 and Nvidia GTX 1060.
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Title:
External
The problem still persists for me with Kernel 4.18.0-15-generic on
Ubuntu 18.10.
I'm using a Lenovo Thinkpad T480 with a Nvidia MX150 and/or integrated
Intel® HD Graphics 620.
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Hi I had the same behavior and the installation of the 45 solve the
issue for me and my colleague.
Many thanks.
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Title:
External
Meetoo. My Lenovo Thinkpad T470s (20HF0047IX) with '45' kernel works as
expected.
Thanks!
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Title:
External monitors does not work
I just got the 4.15.0-45 kernel through normal updates.
Am I the only one who sees it as problematic that when updating to
4.15.0-45, it marks both 4.15.0-43 and 4.15.0-44 for auto removal?
Of course 44 should go, because it's problematic, but what if someone
ends up without a prior kernel to
I confirm that the newly proposed kernel (4.15.0-45-generic) solves the
problem for me too (Dell latitude 5480+WD15 Dock). This closes the bug
1814117, marked as duplicate of this one.
That new kernel is now released in the standard ubuntu repository.
Thanks a lot!
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linux (4.15.0-45.48) bionic; urgency=medium
* linux: 4.15.0-45.48 -proposed tracker (LP: #1813779)
* External monitors does not work anymore 4.15.0-44 (LP: #1813663)
- SAUCE: Revert "drm/i915/dp: Send DPCD ON for MST before phy_up"
* kernel 4.15.0-44 cannot mount ext4 fs with meta_bg
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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Title:
External monitors does not work anymore
Yah @jparedes you should probably open a different bug. You are running
into something different.
I've also verified that this is now fixed.
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After properly powering off everything (not shut reboot or turn on/off
monitor) now i can confirm it works.
4.15.0-45 on Dell Inspiron 5559
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Updated to 4.15.0-45 and hdmi output still doesn't work :(
I'm on a Dell Inspiron 5559
$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 520 (rev 07)
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Works for me on Lenovo T470s on 4.15.0-45.
Thanks for quick fix!
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Title:
External monitors does not work anymore 4.15.0-44
Status
My Latitude 5829 when connected to a Dell DS1000 docking stand is now
working fine as well with 4.15.0-45.
Thank you for the quick turnaround on this!
apt policy linux-generic
linux-generic:
Installed: 4.15.0.45.47
Candidate: 4.15.0.45.47
Version table:
*** 4.15.0.45.47 500
500
I can confirm it's fixed on my surface pro 3 with the newly released
kernel:
apt policy linux-generic
linux-generic:
Installiert: 4.15.0.45.47
Installationskandidat: 4.15.0.45.47
Versionstabelle:
*** 4.15.0.45.47 500
500 http://security.ubuntu.com/ubuntu
My Dell Latitude E7470 was affected as well. When connected with my
external monitor, Ubuntu would freeze on startup after entering my full
disk encryption password, showing the dark-purple screen with a mouse
indicator that would not move. When locking my screen, it would simply
stay black.
The
I just got 4.15.0-45 update from software updater.
After rebooting the system I can connect my laptop to the docking and the 2
external monitors are working again (laptop lid closed). I did only connect the
docking after reboot. Have not tested with the docking attached at boot yet.
uname -a ->
I've been offered a signed 4.15.0-45 kernel through software update.
This one also breaks boot, same as 4.15.0-44.
Only Kai's unsigned 4.15.0-45 test kernels boots OK.
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** Changed in: linux (Ubuntu Bionic)
Status: Fix Released => Fix Committed
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Title:
External monitors does not work anymore
My workaround was to ban the 4.15.0-44 from the system.
sudo apt-mark hold linux-*-4.15.0-44-generic
sudo apt remove linux-*-4.15.0-44-generic
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Sorry I inauspiciously change the bug status... Fix Committed → Fix
Released, I don't know how to revert to Fix Released → Fix Committed ...
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I have the almost same issue with my Dell latitude E5520 plugged into the dock
station WD15. This issue occurred after the latest linux kernel upgrade (to
4.15.044.46).
At startup all my screen are correctly initialized. But when my computer enter
in power-save mode (i.e screen become black
linux-modules and linux-modules-extra are also required.
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Title:
External monitors does not work anymore 4.15.0-44
Status in linux
I installed 4.15.0-45 using
sudo apt install linux-image-4.15.0-45-generic/bionic-proposed linux-
headers-4.15.0-45/bionic-proposed linux-cloud-tools-4.15.0-45-generic
/bionic-proposed
After rebooting into the proposed kernel, displaying and moving windows
is very chubby and ubuntu does not find
** Changed in: linux (Ubuntu)
Status: Fix Released => Confirmed
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Tags added: regression-update
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Bionic)
Status:
Seeing this with a Lenovo T480. Laptop display + USB-C dock with a
DisplayPort and HDMI out. No issues with the HDMI connection, but the
DisplayPort connection is where I was having issues. If the system
detected the Display Port monitor it came in as a disabled monitor. If
I enabled it, then
Yes I do have the same issue. using a Lenovo B50-80, started just after
the last recent update to:
Linux lenovob50-80 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14 11:26:59
UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
on a docking station closed lid, used to work fine now I have to keep
the lid open.
Confirmed same issue on Thinkpad T480 with docking station. One external
monitor over HDMI 1440p @ 60Hz. Issue also occurs occasionally upon
resuming from suspend with no external monitors attached. Occurs every
time with monitor attached on boot, resume, screen lock, or display
sleep.
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I had the same issue on Dell Latitude E5570, reverted to
4.15.0-43-generic just now. Didn't try v45 yet, since it's unofficial
and not signed, AFAIS. Looking forward for an actual fix.
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I have the same issue with a Dell Vostro & business dock WD15
4.15.0-43 works well, I saved that choice on GRUB to be safe.
Dell Vostro
Intel® Core™ i5-8250U CPU @ 1.60GHz × 8
Intel® UHD Graphics 620 (Kabylake GT2)
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TP T450s with docking station and external monitor
The kernel from proposed-list fixed this for me.
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Title:
External monitors does
I'm also affected by this bug on a T460p, I've attached the syslog entry
from the crashes. It happens when the laptop is inactive and the display
gets switched off. Please let me know if I can assist further in
debugging this. Here's my uname:
Linux 44 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14
I'm hitting this bug too, using a Lenovo Thinkpad T470s (20HF0047IX);
i'm using a docking, but also without the pc boot but i get black
screen.
I'm using 'signed' kernel, can i safely install the (unsigned) test
4.15.0-45 kernel?
Kernel -43 works as expected.
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I have the same problem on AsusPro with Asus SimPro Dock-1A, plan to try
the fix a bit later.
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Title:
External monitors does not
I've changed the tag 'verification-needed-bionic' to 'verification-done-
bionic'.
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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Hi,
This bug affects various HP laptops as well on the latest 4.15.0-44
kernel(EliteBook 745 G5, EliteBook 850 G2, Elitebook 840 G5 verified) using the
HP 2013 UltraSlim Docking station.
Updating to Kernel 4.15.0-45 fixed this (link below).
https://people.canonical.com/~khfeng/lp1813663/
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I've been running with the updated kernel for approx 24 hours now and
everything seems fine again.
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Title:
External monitors does
I didn't manage to find a new kernel in the proposed updates list :(
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Title:
External monitors does not work anymore 4.15.0-44
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag
I can confirm that patches from post 3 solve the problem. Thank you!
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Title:
External monitors does not work anymore 4.15.0-44
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Confirmed
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Title:
External monitors does not work anymore
Sorry, my status change was an accident. I didn't thought that i has
permission to change it as fixed and now i have no permission to reset
it :/
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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As stated in bug 1813831 thread, the issue is related to a change in the
graphic driver's DPMS sequence. It was introduced in 4.15.0-44, and
reverted in 4.15.0-45 made available for testing in the other bug's thread.
Meaning that it's not related to thunderbolt docks, nor docks at all,
but to
I also have this problem on my ThinkPad T470p with Pro Dock 40A1.
When I power on my laptop with connected dock, it's fine. I can log in
and work smoothly. The problem occurs when I lock my screen. Computer
freeze and I can do nothing. Only reset is a solution.
I attached logs before a reset.
** Changed in: linux (Ubuntu Bionic)
Status: Fix Released => Fix Committed
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Title:
External monitors does not work anymore
I'm affected with this issue on a Thinkpad T460P. My problem is slightly
different, though. I boot up my laptop while it is already docked, two
external screens are connected to the docking station. The display
manager initializes all three screens (laptop + both external screens)
and LXDE/Openbox
Hi. It seems not only Dell laptops have been affected.
I'm using Lenovo ThinkPad X280 with Lenovo USB-C dock and this bug
affects me. But the steps I reproduce the bug is different.
For the reproduce steps on Lenovo ThinkPad X280, please
refer to bug #1813763 (marked duplicated)
I believe it's supposed to say Fix Committed, not Fix Released. The
change was a mistake -- see down in the thread.
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Title:
Woops, didn't mean to change the status. Can someone change it back, I
am not able to. (Am surprised I could in the first place)
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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I apologize for the post, should have done some reading on the comments
first. The 4.15.0-45-generic kernel linked to in the 3rd post does
indeed solve my issue, so it looks like they are aware of exactly what
caused this issue and it'll be fixed in future kernel updates. It's
interesting it only
I can confirm I'm having the same problem with a Dell Precision 5510
laptop. I have traced the problem to the startup item "/usr/lib/x86_64
-linux-gnu/cinnamon-settings-daemon/csd-xrandr" it seems xrandr is
freezing the system when it boots up connected to a Thunderbolt 3 Dock.
If I disable that
Do we know the full extent of this bug? I reverted to kernel
4.15.0-43, which resolved the issue on my tablet. But I noticed my
desktop having some trouble this morning (weird file copy errors,
reporting my printer was not accepting jobs and some unusual wifi cut-
offs). I'll switch back to
Using the kernel in https://people.canonical.com/~khfeng/lp1813663/ works for
me too.
I'm on a Dell XPS 9360 + TB16 dock
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Title:
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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Title:
External monitors does not work anymore
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
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See bug 1813745: Kai-Heng provided a 4.15.0-45 test kernel which fixes
the issue.
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Title:
External monitors does not work anymore
External monitors stopped working for me with a docking station as well
come to find out today, Linux Mint 19.
Kernel was 4.15.0-44
Trying an upgrade to 4.18.0-14-generic has fixed the issue. Seems to be
running smoothly so far on the upgraded Kernel.
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I followed the instructions in post #3 and it seems to have solved the
issue!
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Title:
External monitors does not work anymore
apport information
** Tags added: apport-collected bionic
** Description changed:
I am using a docking station for my laptop. After install the 4.15.0-44
update my external monitors goes undetected after logging in or having
the laptop closed.
I am on 18.04.1 LTS with Intel® HD
Please test this kernel:
https://people.canonical.com/~khfeng/lp1813663/
This commit is reverted in the test kernel:
"drm/i915/dp: Send DPCD ON for MST before phy_up"
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** Package changed: ubuntu => linux (Ubuntu)
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Title:
External monitors does not work anymore 4.15.0-44
Status in linux package in
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