[Bug 101586] [KBL] Constant display flicker after i915 is initialised (horizontal lines in graphics mode, flickering in tty)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101586

--- Comment #6 from René Seindal <rene at seindal.dk> ---
Created attachment 132443
  --> https://bugs.freedesktop.org/attachment.cgi?id=132443&action=edit
dmesg output with drm.debug=0x1e and log_buf_len=1M immediately after boot, all
i915 removed

Here's the requested output.

Just to make sure I've done the right thing, here are the steps I took.

- commented all lines in /etc/modprobe.d/i915
- update-initramfs -u -k 4.11.0-1-amd64
- reboot into kernel 4.11.0-1 with "drm.debug=0x1e max_buf_len=1M" added in
grub
- switch to console, save output of dmesg to a file.
- reboot into older kernel where the i915 module is removed so I could write
this.

Please let me know if I've done something wrong.

If it can help I can try to make a video of the display so you can see how it
behaves.

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