Yes, it does indeed! No flicker anymore. Thanks and cheers!
On 2021-05-14 14:34, Oleksandr Natalenko wrote:
Hello.
On Fri, May 14, 2021 at 10:24:26AM +0200, Thomas Stein wrote:
After upgrading to linux 5.12 the display on my X1 Carbon Gen 2 starts
to
flicker. Well actually it seems to turn off and on again and again.
Here a
link to a video a person posted who has the same issue as me
obviousely.
https://linuxove.com/thinkpad-x1-carbon-gen-3-display-flickering-on-linux-kernel-5-12/
This happens without having Xorg running too. So it can't be related
to
Xorg. The kernel boots and after a few seconds, the kernel messages
scoll
through, the flickering starts. Nothing special in dmesg.
dmesg:
himbeere@rather ~ $ dmesg | grep i915
[ 0.713595] i915 0000:00:02.0: vgaarb: deactivate vga console
[ 0.720280] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 0.741494] i915 0000:00:02.0: [drm] Panel advertises DPCD
backlight
support, but VBT disagrees. If your backlight controls don't work try
booting with i915.enable_dpcd_backlight=1. If your machine needs this,
please file a _new_ bug report on drm/i915, see
https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs
for
details.
[ 1.864837] [drm] Initialized i915 1.6.0 20201103 for 0000:00:02.0
on
minor 0
[ 1.875907] fbcon: i915drmfb (fb0) is primary device
[ 3.158255] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer
device
himbeere@rather ~ $
Downgrading to 5.11 solves the issue for me. Any ideas?
Does [1] fix your issue?
[1]
https://cgit.freedesktop.org/drm-tip/patch/?id=acca7762eb71bc05a8f28d29320d193150051f79
