Please:
Xorg.0.log for '4.15.0-38' and '4.15.0-39'.
Best regards,
--
Cristian
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Also affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Xorg loads, no display on 4.15.0-38, works on
Installed 4.15.0-39 from proposed. Same result. Xorg starts up, nothing on
displays.
-36 works
-38 black screens
-39 black screens
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Bugs, which is
apport information
** Tags added: package-from-proposed
** Description changed:
Lenovo ThinkPad W540 docked with an ultradock. 3 external displays
running on VGA, DVI and display port all connected to the dock. BIOS
mode set to run external displays ONLY with nvidia chipset. prime-select
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/174/comments/39
'non-working Xorg.0.log':
[15.476] Current Operating System: Linux TimRikerW540
4.15.0-36-generic #39-Ubuntu SMP Mon Sep 24 16:19:09 UTC 2018 x86_64
The idea is good, do that with kernel '4.15.0-38'
--
Cristian
--
** Attachment added: "Previous working Xorg.1.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/174/+attachment/5205535/+files/Xorg.1.log
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** Attachment added: "non-working Xorg.0.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/174/+attachment/5205534/+files/Xorg.0.log
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There is a new version of the kernel '4.15.0-39.42', to install, you must
follow [0]this guide
[0] https://wiki.ubuntu.com/Testing/EnableProposed
And then see if it works. In any case, execute then with this version of
the kernel:
apport-collect 174
Thanks for your time,
--
Cristian
**
Second log set it from running -38. Xorg running, all displays are
black.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/174
apport information
** Description changed:
Lenovo ThinkPad W540 docked with an ultradock. 3 external displays
running on VGA, DVI and display port all connected to the dock. BIOS
mode set to run external displays ONLY with nvidia chipset. prime-select
nvidia run.
When running under
As this is with the nvidia driver, I think I need a kernel with modules-
extra included. Any hint on how to find the last one of those?
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https://bugs.launchpad.net/bugs/174
Title:
We already know that your linux '4.15.0-36' works well. You could try to
boot with your kernel '4.15.0-38' and then start your system switch to
terminal mode (CTRL + ALT + F3) and execute:
apport-collect 174
The idea is to review the 'logs' and discover why it fails.
--
Cristian
--
You
Yes. I upgraded yesterday. On booting today into -38 the displays did
not light up. On reverting to -36 I get displays again. I'll test the
mainline kernel and report back.
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Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.19
apport information
** Tags added: apport-collected
** Description changed:
Lenovo ThinkPad W540 docked with an ultradock. 3 external displays
running on VGA, DVI and display port all connected to the dock. BIOS
mode set to run external displays ONLY with nvidia chipset. prime-select
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