[Bug 109398] booting gives black screen [drm:intel_dp_start_link_train] [CONNECTOR:67:eDP-1] Link Training failed at link rate = 162000, lane count = 2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109398

--- Comment #10 from Seppe <seppe.hoogzaad at gmail.com> ---
On the stable-kernel i did:

> git checkout -b branch.4.20.4.test v4.20.4
> git revert 1e712535c51ab025ebc776d4405683d81521996d
Revert "drm/i915/dp: Link train Fallback on eDP only if fallback link BW can
fit panel's native mode"
> git revert c0cfb10d9e1de490e36d3b9d4228c0ea0ca30677
Revert "drm/i915/edp: Do not do link training fallback or prune modes on EDP"
revert

I build this kernel with the default .config options for the graphics. 
Booted with the kernel parameters: splash=silent quiet showopts drm.debug=14
log_buf_len=4M

The result:
Two white flashes, then a black screen. 
No logo, no nothing.

I could not login remotely. I therefore attached the full log from the journal.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are on the CC list for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20190128/a19efd45/attachment.html>