Linux 5.0 black screen on boot, display flickers (i915 regression with certain laptop panels)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Disco |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
On my Dell XPS 9575, I get a black screen on boot when running the 19.04 live image, OR after updating from 18.10 to 19.04. It appears to be a kernel related bug that was introduced in 5.0 that is affected by certain laptop panels not conforming to their stated specifications.
Several other Dell systems exhibit the same issue, and it's very possible that there are other panels used on other systems that will also have the same issues.
Intel is aware of this issue and has already created a patch. You can see the relevant threads here:
https:/
And the patch here:
https:/
It would be fantastic to get this patch applied before release, as it would be very difficult install 19.04 on the affected systems otherwise. I was able to get the live image booted by adding the nomodeset kernel parameter to grub, so as a work around you can use this approach to install.
[Test case]
boot a kernel with the revert
[Regression potential]
shouldn't be any, since this reverts to what was used on kernels before 5.0
summary: |
- Linux 5.0 regression i915 module, black screen on boot for certain - laptop panels + Linux 5.0 black screen on boot, display flickers (i915 regression with + certain laptop panels) |
description: | updated |
Changed in linux (Ubuntu Disco): | |
status: | Confirmed → Fix Committed |
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 1824216
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.