Ubuntu
linux package

AMDGPU Failed to blank

Bug #1766075 reported by DCWizard on 2018-04-22

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Confirmed	Medium	Unassigned

Bug Description

I'm getting these error on the startup:

drm:hwss_wait_for_blank_complete [amdgpu] *ERROR* DC: failed to blank crtc!

In Ubuntu 18.04

See original description

Tags:

DCWizard (dcwizard) on 2018-04-22

description:

updated

DCWizard (dcwizard) on 2018-04-22

summary:	- drm:hwss_wait_for_blank_comp + AMDGPU Failed to blank
tags:	added: amd64

Steve Langasek (vorlon) on 2018-04-23

affects:

plymouth (Ubuntu) → linux (Ubuntu)

Revision history for this message

Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote on 2018-04-23: Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1766075

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status:	New → Incomplete

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2018-04-23:

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 v4.16 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.17-rc2

Changed in linux (Ubuntu):
importance:	Undecided → Medium

Revision history for this message

DCWizard (dcwizard) wrote on 2018-04-24:

Yes this happened after an update and affects all linux kernels.

Changed in linux (Ubuntu):
status:	Incomplete → Confirmed

Revision history for this message

DCWizard (dcwizard) wrote on 2018-04-24:

I've also reported it to kernel.org

tags:

added: kernel-bug-exists-upstream

Revision history for this message

Michael Wilkinson (michael-wilkinsons) wrote on 2018-07-08:

Output from dmesg on problem machine to error message Edit (65.4 KiB, text/plain)

I think I am experiencing the same issue. Upgrade to Ubuntu 18.04 failed.
Startup does not complete and screen sequences through: blank, startup console output and corrupt/uninitialised screen with lots of colours.
Log in almost impossible on other console as screen switches back.
Managed to log in via ssh from a laptop and captured first 1000 lines of output from dmesg - see attached.
From ssh login on 8th July managed to upgrade all packages but problem persists.