[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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i vote this as a bug from the dock ,you may contact lenovo developers for more
info to fix
i wrote a blog to workaround with systemd xrandr see
https://sys4.de/de/blog/2016/03/09/external-displays-thinkpad-pro-dock-90w-stay-switched-after-resume/
perhaps someone will find a better way with
Robert Schetterer, it will help immensely if you filed a new report with the
Ubuntu repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux
Please feel free to subscribe me to it.
For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.
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You
I am tested wily ,xenial, kubuntu, kernels 4.2 , 4.4 on brand new thinkpad
t450s with thinkpad pro dock 90w.
The laptop and the dock has latest fimware !
Intel graphics driver is at latest state too.
Also tested latest 4.5 drm intel nightly. All external displays work always
when directly
YES, booting with 3.16.44 makes this go away.
Every plugging in and out of monitors (or (un)connecting the dock) is reflected
instantly by display settings.
** Changed in: xorg (Ubuntu)
Status: Incomplete => New
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aexl, at your earliest convenience, could you please test the latest
upstream kernel available from the very top line at the top of the page
from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
names are irrelevant for testing, and please do not test the daily
folder)? Install
Yes this is fixed upstream, Yay!
Given that vivid is end of life, i think you can close this, but leave it up to
you.
In any case: Thanks for guiding me through this!
** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.4
** Changed in: linux (Ubuntu)
Status: Incomplete =>
aexl, while Vivid is EOL as per https://wiki.ubuntu.com/Releases, the
release you would be upgrading to isn't.
Hence, to see if this is already resolved in Ubuntu, could you please
upgrade to either Wily or Xenial, and advise if this is still
reproducible?
** Changed in: linux (Ubuntu)
aexl, if you boot with a kernel from 14.10 (3.16.x), does the issue go
away?
** Tags added: latest-bios-1.81
** Tags added: regression-release
** Changed in: xorg (Ubuntu)
Importance: Low => Medium
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
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Thank you christopher for this reminder, i did not knw that BIOS had to
be updated.
Unfortunately the BIOS update did not change anything.
(Note: On the linked page the current BIOS is labeled 1.82, but the
bootable ISO as well as its README (and the readme of the windows BIOS
updater) announce
aexl, thank you for reporting this and helping make Ubuntu better.
Could you please run the following command once from a terminal as it will
automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1530171
Please ensure you have the package xdiagnose
Thanks christopher for taking care of this! I'll do this in an instant.
** Tags added: apport-collected compiz-0.9 ubuntu vivid
** Description changed:
On Thinkpad L540 with intel graphics:
External monitors are not recognized in display settings when plugged
into any dock port.
aexl, as per http://support.lenovo.com/us/en/products/Laptops-and-
netbooks/ThinkPad-L-Series-
laptops/ThinkPad-L540?linkTrack=Homepage:Body_Search%20Products an
update to your computer's buggy and outdated BIOS is available (1.82).
If you update to this following
Thanks christopher, i'll go on like this!
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Title:
[Regression] Thinkpad dock: External monitors not recognized after
15.04 upgrade
To manage
** Package changed: unity-control-center (Ubuntu) => xserver-xorg-video-
intel (Ubuntu)
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Title:
[Regression] Thinkpad dock: External monitors
** No longer affects: udev
** Package changed: ubuntu => unity-control-center (Ubuntu)
** Description changed:
On Thinkpad L540 with intel graphics:
- External monitors are not recognized in display settings when plugged in
- (into any port including VGA).
+ External monitors are not
Updated summary with new findings.
** Also affects: udev
Importance: Undecided
Status: New
** No longer affects: nvidia-graphics-drivers-304-updates (Ubuntu)
** Also affects: ubuntu
Importance: Undecided
Status: New
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Crosslinking SO question: https://askubuntu.com/questions/715084
/thinkpad-dock-external-monitors-not-recognized-after-15-04-upgrade
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