brightness setting and sleep/suspend (echo mem > /sys/power/state) , s2ram and s2disk fail for 5.4.0 and s2disk fail for 5.4.22
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
1) After resuming from suspend (uswsusp/s2ram) and/or after resuming from "echo mem > /sys/power/state" there is a black screen on laptop after resume with 5.4.0-14-generic kernel only. Kernel seems to be working as CTRL+ALT+F2 and CTRL+ALT+DEL restarts laptop.
A) 3 Different combinations of this distro with other kernels work well:
kubunut20.04 + linux-image-
(copied from kubuntu 19.10 from /lib/modules/
Installed from
https:/
kubuntu20.04 + linux-image-
kubuntu20.04 + linux-image-
B) This kernel 5.4.0-14-generic when copied manually into kubuntu 19.10 behaves the same as in 20.04 (NOT WORKING for suspend to ram)
2) setting brightness with keys on laptop keyboard does not work for this kernel 5.4.0-14-generic only
Neither using this command line method
marian@
255
marian@
255
marian@
255
marian@
242
marian@
200
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Again kernel 5.3 copied into kubuntu20.04 got working brigthness keys.
However this works for all tested kernels above (including 5.4.0-14-generic)
xrandr --output eDP-1 --brightness 0.8
3) after uswsusp/hibernate (s2disk) and "echo disk > /sys/power/state" do not seem to resume/thaw
for those kernels: linux-image-
Again I tested different combination of kernels and distros for this issue.
This kernel (5.4.0-14-generic) also does not work for hibernate/resume even when copied from kubuntu20.04 into kubuntu19.10
4)
Starting kubuntu without installation from daily build from 25th Feb 2020 shows the same problem for brightness setting and for black screen after resuming from sleep.
http://
Note I always recreated imagerd in target place when copied kernels manually:
update-initramfs -u -k 5.3.0-40-generic
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: KDE
Date: Wed Feb 26 22:20:29 2020
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp.
Bus 001 Device 002: ID 05c8:0815 Cheng Uei Precision Industry Co., Ltd (Foxlink) HP Wide Vision FHD Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Spectre x360 Convertible 13-ae0xx
ProcEnviron:
LANGUAGE=
TERM=xterm-
PATH=(custom, no user)
XDG_RUNTIME_
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.186
SourcePackage: linux-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 01/07/2019
dmi.bios.vendor: AMI
dmi.bios.version: F.24
dmi.board.
dmi.board.name: 83B9
dmi.board.vendor: HP
dmi.board.version: 56.43
dmi.chassis.type: 31
dmi.chassis.vendor: HP
dmi.chassis.
dmi.modalias: dmi:bvnAMI:
dmi.product.family: 103C_5335KV HP Spectre
dmi.product.name: HP Spectre x360 Convertible 13-ae0xx
dmi.product.sku: 2QH34EA#ABU
dmi.sys.vendor: HP
affects: | linux-5.4 (Ubuntu) → linux (Ubuntu) |
To be precise unsigned- 5.5.6-050506- generic and linux-image- unsigned- 5.6.0-050600rc3 -generic . The actual commands s2disk and "echo disk > /sys/power/state" return immediately as if something was wrong during memory saving. Laptop does not switches off.
With kernel 5.4.0-14-generic
"echo disk > /sys/power/state" does not seem to spend time on saving memory to disk like s2disk does , but laptop switches off (I assume it hibernates) and resume will not pick up where I left it. It starts normally.
With kernels linux-image-