Screen not turning off

[yendrrek]

Since the last update my screen always stays on despite the power settings telling it to turn off after 10 minutes, also the 'suspend when inactive for' option doesn't seem to work as I set it up for 2 hours and after 4 hours the computer is not suspended.
I noticed that after rebooting the machine and leaving it with the log-in screen on, the monitor does turn off but once I log-in the power management stops working properly. Any help would be much appreciated.

Also I have the panel set up for auto hiding but it stops working sometimes and just stays visible. I never had these problems before. I'm running Tricia 19.3, Cinammon.

I'm using an external monitor but even without it nothing improves.

Graphics: Device-1: Intel Mobile 4 Series Integrated Graphics driver: i915 v: kernel
Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa
resolution: 1366x768~60Hz, 1920x1080~60Hz
OpenGL: renderer: Mesa DRI Mobile Intel GM45 Express (CTG) v: 2.1 Mesa 20.0.8

Kernel: 5.4.0-72-generic

[SMG]

Since the last update

What does that mean? Not everyone gets updates on their systems at the same time.

If you meant a kernel update, you can roll back to the prior kernel by booting into grub and selecting the old kernel.

Please supply the full inxi requested in Section 5 of READ: How To Get Help! so we get a better idea of how Mint sees your hardware.

[yendrrek]

My apologies for the late replay and incomplete information.
Here's the inxi:

Code: Select all

System:    Host: yendrrek-ThinkPad-SL510 Kernel: 5.4.0-72-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 
           Desktop: Cinnamon 4.4.8 wm: muffin 4.4.4 dm: LightDM 1.26.0 Distro: Linux Mint 19.3 Tricia 
           base: Ubuntu 18.04 bionic 
Machine:   Type: Laptop System: LENOVO product: 28477LG v: ThinkPad SL510 serial: <filter> Chassis: type: 10 
           serial: <filter> 
           Mobo: LENOVO model: 28477LG serial: <filter> BIOS: LENOVO v: 6JET79WW (1.37 ) date: 05/14/2010 
Battery:   ID-1: BAT1 charge: 12.7 Wh condition: 13.2/47.5 Wh (28%) volts: 12.3/10.8 model: SANYO 42T4751 
           type: Li-ion serial: <filter> status: Unknown 
CPU:       Topology: Dual Core model: Intel Core2 Duo T9900 bits: 64 type: MCP arch: Penryn rev: A 
           L2 cache: 6144 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx bogomips: 12236 
           Speed: 1432 MHz min/max: 800/3067 MHz boost: enabled Core speeds (MHz): 1: 3115 2: 3084 
Graphics:  Device-1: Intel Mobile 4 Series Integrated Graphics vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 
           chip ID: 8086:2a42 
           Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1366x768~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: Mesa DRI Mobile Intel GM45 Express (CTG) v: 2.1 Mesa 20.0.8 direct render: Yes 
Audio:     Device-1: Intel 82801I HD Audio vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 00:1b.0 
           chip ID: 8086:293e 
           Sound Server: ALSA v: k5.4.0-72-generic 
Network:   Device-1: Intel Centrino Wireless-N 1000 [Condor Peak] driver: iwlwifi v: kernel port: 1c00 
           bus ID: 05:00.0 chip ID: 8086:0084 
           IF: wlp5s0 state: up mac: <filter> 
           Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Lenovo driver: r8169 v: kernel 
           port: 3000 bus ID: 08:00.0 chip ID: 10ec:8168 
           IF: enp8s0 state: down mac: <filter> 
Drives:    Local Storage: total: 523.93 GiB used: 368.06 GiB (70.2%) 
           ID-1: /dev/sda vendor: HGST (Hitachi) model: HTS545050A7E680 size: 465.76 GiB speed: 3.0 Gb/s 
           rotation: 5400 rpm serial: <filter> rev: A230 scheme: MBR 
           ID-2: /dev/sdb type: USB vendor: Toshiba model: TransMemory size: 58.17 GiB serial: <filter> rev: PMAP 
           scheme: MBR 
Partition: ID-1: / size: 457.45 GiB used: 329.99 GiB (72.1%) fs: ext4 dev: /dev/sda1 
Sensors:   System Temperatures: cpu: 42.0 C mobo: 0.0 C 
           Fan Speeds (RPM): fan-1: 0 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/bookworm-team-bookworm-bionic.list 
           1: deb http://ppa.launchpad.net/bookworm-team/bookworm/ubuntu bionic main
           Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list 
           1: deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
           Active apt repos in: /etc/apt/sources.list.d/google-chrome.list 
           1: deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/inkscape_dev-stable-bionic.list 
           1: deb http://ppa.launchpad.net/inkscape.dev/stable/ubuntu bionic main
           Active apt repos in: /etc/apt/sources.list.d/micahflee-ppa-bionic.list 
           1: deb http://ppa.launchpad.net/micahflee/ppa/ubuntu bionic main
           Active apt repos in: /etc/apt/sources.list.d/nodesource.list 
           1: deb https://deb.nodesource.com/node_13.x bionic main
           2: deb-src https://deb.nodesource.com/node_13.x bionic main
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http://packages.linuxmint.com tricia main upstream import backport #id:linuxmint_main
           2: deb http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse
           3: deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse
           4: deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
           5: deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
           6: deb http://archive.canonical.com/ubuntu/ bionic partner
           Active apt repos in: /etc/apt/sources.list.d/opera-stable.list 
           1: deb https://deb.opera.com/opera-stable/ stable non-free #Opera Browser (final releases)
           Active apt repos in: /etc/apt/sources.list.d/otto-kesselgulasch-gimp-bionic.list 
           1: deb http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu bionic main
           Active apt repos in: /etc/apt/sources.list.d/sublime-text.list 
           1: deb https://download.sublimetext.com/ apt/stable/
           Active apt repos in: /etc/apt/sources.list.d/tor.list 
           1: deb https://deb.torproject.org/torproject.org bionic main
           2: deb-src https://deb.torproject.org/torproject.org bionic main
           Active apt repos in: /etc/apt/sources.list.d/vscode.list 
           1: deb [arch=amd64] http://packages.microsoft.com/repos/vscode stable main
Info:      Processes: 270 Uptime: 1d 3h 49m Memory: 7.62 GiB used: 4.45 GiB (58.4%) Init: systemd v: 237 runlevel: 5 
           Compilers: gcc: 7.5.0 alt: 7 Shell: bash v: 4.4.20 running in: gnome-terminal inxi: 3.0.32 
           

[SMG]

You have not indicated what update caused the change. It's often easier to troubleshoot issues when you can identify what you think might have changed. Was it an update? Did you add any new software (or update the software)?

To revert to an earlier kernel, boot into grub and go to the Advanced options to select the prior kernel (or another earlier kernel). If you do not normally see grub when you boot, hold the shift key when booting to see grub.

Or you can revert to an earlier Timeshift snapshot of when the system was working if you use Timeshift.

There may not be an option for you to update your BIOS, but I wanted you to know the final BIOS version was 1.52 according to BIOS update utility for Windows 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - ThinkPad. When checking the ReadMe for that BIOS, I noticed there was mention of:
"- (Fix) Fixed an issue that might fail to go into standby/sleep state or resume
normal operation from standby/sleep state."
in version 1.46. I do not know if that might be related to your current situation.

Machine: Type: Laptop System: LENOVO product: 28477LG v: ThinkPad SL510 serial: <filter> Chassis: type: 10
serial: <filter>
Mobo: LENOVO model: 28477LG serial: <filter> BIOS: LENOVO v: 6JET79WW (1.37 ) date: 05/14/2010

[yendrrek]

It's Chrome Developer Tools opened in a separate window. If I close that window than the screen switches itself off according to power settings, if it's on, power settings stop working. With the older kernel (5.0.0.32) this issue doesn't exists. Well, I will just shut the developer tools window when leaving the desk. Not a problem. I don't think I will intend to update the BIOS, I don't have Windows 7 installed anymore.
Many thanks for your kind help.

[SMG]

With the older kernel (5.0.0.32) this issue doesn't exists.

That kernel is no longer supported. However, the 4.15 kernel is the LTS kernel for LM19 and is still receiving support. You have the choice of using either the 5.4 or the 4.15 kernels. If the 5.0 kernel worked, maybe the 4.15 kernel will also. If you want to try the 4.15 kernel and need instructions to try it, let us know.

I do not know why that one particular program might be an issue.