Bug ID | 104109 |
---|---|
Summary | After upgrade to kernel 4.13.16-302 one monitor in a two monitor displayport setup isn't working anymore. |
Product | xorg |
Version | unspecified |
Hardware | Other |
OS | Linux (All) |
Status | NEW |
Severity | major |
Priority | medium |
Component | Driver/nouveau |
Assignee | nouveau@lists.freedesktop.org |
Reporter | torsten@intsec.org |
QA Contact | xorg-team@lists.x.org |
Created attachment 135975 [details]
kernel log (4.13.16-300)
This issue comes in two parts which may be related to each other.
First when upgrading to kernel 4.13.16-300 I began to have issues with one
monitor when it went into sleep mode. I then saw errors like "disp: outp
03:0006:0f88: training failed". Checking xrandr showed that the monitor
"existed" but it only showed a black screen.
This behaviour was tested on both fedora 27 and ubuntu 16.04 LTS with all
updates installed.
The dual monitor setup was working prior to updating to kernel 4.13.16-300.
When doing a kernel upgrade to 4.13.16-302 this monitor was not even found
anymore by the nouveau driver.
I will attach the following files:
* kernel log 4.13.16-300
* kernel log 4.13.16-302
* xrandr when running kernel 4.13.16-300
* xrandr when running kernel 4.13.16-302