bisect result: lp:~ubuntu-kernel/ubuntu/+source/linux/+git/unstable
shows this commit.
I built using the mainline config-4.15.0-041500rc2-generic file and
accepted default options. I also had to apply
ff6fa2d396b0476988c749664f600b1e177bcf9b in order to get the neighboring
commits to build.
it does appear to stop the flicker, but also seems to cause the boot
failure.
commit 77a113c1ac1458856ca8e82a9046efff8ca87f09
Author: Andy Whitcroft <a...@canonical.com>
Date: Wed Apr 16 19:40:57 2014 +0100
UBUNTU: SAUCE: vt -- maintain bootloader screen mode and content until vt
switch
Introduce a new VT mode KD_TRANSPARENT which endevours to leave the current
content of the framebuffer untouched. This allows the bootloader to insert
a graphical splash and have the kernel maintain it until the OS splash
can take over. When we finally switch away (either through programs like
plymouth or manually) the content is lost and the VT reverts to text mode.
BugLink: http://bugs.launchpad.net/bugs/1308685
Signed-off-by: Andy Whitcroft <a...@canonical.com>
:040000 040000 b0f28f7ecaeaf8037832299ee421886dcd9dfc25
3e051b4e05da82a1184bdb45a71d3317e8c74445 M drivers
:040000 040000 22bdb68e3e9757318cf57f010231c1af7db61cc1
ce199b29dcc261c74b4b2cdfd26dc3993ecbd970 M include
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https://bugs.launchpad.net/bugs/1768139
Title:
Kernel crash when booting laptop with hdmi monitor connected
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