Tried mainline kernel 4.18 and it didn't help: the flickering looks the
same to me.
pc14:/sys/module/i915$ modinfo i915
filename:
/lib/modules/4.18.0-041800-generic/kernel/drivers/gpu/drm/i915/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Intel Corporation
author: Tungsten Graphics, Inc.
firmware: i915/bxt_dmc_ver1_07.bin
firmware: i915/skl_dmc_ver1_27.bin
firmware: i915/kbl_dmc_ver1_04.bin
firmware: i915/cnl_dmc_ver1_07.bin
firmware: i915/glk_dmc_ver1_04.bin
firmware: i915/kbl_guc_ver9_39.bin
firmware: i915/bxt_guc_ver9_29.bin
firmware: i915/skl_guc_ver9_33.bin
firmware: i915/kbl_huc_ver02_00_1810.bin
firmware: i915/bxt_huc_ver01_07_1398.bin
firmware: i915/skl_huc_ver01_07_1398.bin
srcversion: CBDAC14E62E2863B1B1614A
sudo systool -vm i915
Module = "i915"
Attributes:
coresize = "1740800"
initsize = "0"
initstate = "live"
refcnt = "20"
srcversion = "CBDAC14E62E2863B1B1614A"
taint = ""
uevent = <store method only>
Parameters:
alpha_support = "N"
disable_display = "N"
disable_power_well = "1"
dmc_firmware_path = "(null)"
edp_vswing = "0"
enable_cmd_parser = "Y"
enable_dc = "-1"
enable_dp_mst = "Y"
enable_dpcd_backlight= "N"
enable_fbc = "1"
enable_guc = "3"
enable_gvt = "N"
enable_hangcheck = "Y"
enable_ips = "1"
enable_ppgtt = "3"
enable_psr = "0"
error_capture = "Y"
fastboot = "N"
force_reset_modeset_test= "N"
guc_firmware_path = "(null)"
guc_log_level = "1"
huc_firmware_path = "(null)"
invert_brightness = "0"
load_detect_test = "N"
lvds_channel_mode = "0"
mmio_debug = "0"
modeset = "-1"
nuclear_pageflip = "N"
panel_ignore_lid = "1"
panel_use_ssc = "-1"
prefault_disable = "N"
reset = "2"
vbt_firmware = "(null)"
vbt_sdvo_panel_type = "-1"
verbose_state_checks= "Y"
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1785912
Title:
Screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s
13IKB 81BV
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1785912/+subscriptions
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