Locking the screen while a monitor/projector is attached

[hannlec]

Hello everyone! First of all, thank you for all your work, I've been using MX for about 6 months now, and aside from some practical issues, I'm loving it! -- I use the ctrl+alt+del key combo for locking the screen, and it works fine, but only until I plug in another monitor/projector to my laptop. While being on mirrored display mode, I can't lock the screen in any way (even from the menu by clicking on it). Another issue connected to this is that after unplugging the monitor/projector, and suspending the laptop, the screen is not locked when I wake it up (also, many times the system freezes entirely when I try to wake it up). I'm a teacher and I'm constantly plugging in and unplugging projectors when I switch classrooms, so both the lock screen and the suspend/freeze problem is very frustrating and makes me loose a lot of time, since I always have to either shut down or restart the system. Any help would be greatly appreciated! (I disabled the screensaver and played around in the power manager, but nothing seems to help.) [MX 19.1, 64bit, Intel i5 - integrated graphics]

[JayM]

That's exactly what presentation mode is for: it inhibits the screen saver/blanker when you're giving a presentation. Right click on the "Computer" icon in your panel's notification area to enable and disable presentation mode.

[hannlec]

JayM, I'm sorry but this is not a reply to the problem I pointed out. I know what presentation mode is for, but it has nothing to do with my not being able to lock the screen on mirror display mode, nor with the suspend-freeze issue.

[JayM]

Sorry, I read the post early this morning and I misunderstood. Can you run MX Tools/Quick System Info with both monitors attached, then immediately right-click paste in a reply?

[hannlec]

JayM, no problem, and of course, here's the system info:

Code: Select all

System:    Host: Peter-Z-MX-Linux Kernel: 4.19.0-6-amd64 x86_64 bits: 64 compiler: gcc v: 8.3.0 
           parameters: BOOT_IMAGE=/boot/vmlinuz-4.19.0-6-amd64 
           root=UUID=2c477f6d-d408-43c5-b4bd-81a51c869e81 ro quiet splash 
           Desktop: Xfce 4.14.2 tk: Gtk 3.24.5 info: xfce4-panel wm: xfwm4 dm: LightDM 1.26.0 
           Distro: MX-19.1_x64 patito feo October 21  2019 base: Debian GNU/Linux 10 (buster) 
Machine:   Type: Laptop System: LENOVO product: IdeaPad Z580 v: Lenovo Z580 serial: <filter> 
           Chassis: Intel Corporation type: 9 v: 0.1 serial: <filter> 
           Mobo: LENOVO model: Lenovo v: Lenovo Z580 serial: <filter> UEFI [Legacy]: LENOVO 
           v: 5FCN34WW date: 06/11/2012 
Battery:   ID-1: BAT1 charge: 6.6 Wh condition: 23.4/42.0 Wh (56%) volts: 11.1/10.8 
           model: SANYO L11S6Y01 type: Li-ion serial: <filter> status: Charging 
CPU:       Topology: Dual Core model: Intel Core i5-3210M bits: 64 type: MT MCP arch: Ivy Bridge 
           family: 6 model-id: 3A (58) stepping: 9 microcode: 21 L2 cache: 3072 KiB 
           flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19953 
           Speed: 1197 MHz min/max: 1200/3100 MHz Core speeds (MHz): 1: 1197 2: 1197 3: 1197 
           4: 1197 
           Vulnerabilities: Type: itlb_multihit status: KVM: Vulnerable 
           Type: l1tf mitigation: PTE Inversion 
           Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
           Type: meltdown mitigation: PTI 
           Type: spec_store_bypass 
           mitigation: Speculative Store Bypass disabled via prctl and seccomp 
           Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization 
           Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, IBRS_FW, 
           STIBP: conditional, RSB filling 
           Type: tsx_async_abort status: Not affected 
Graphics:  Device-1: Intel 3rd Gen Core processor Graphics vendor: Lenovo driver: i915 v: kernel 
           bus ID: 00:02.0 chip ID: 8086:0166 
           Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa 
           resolution: 1366x768~60Hz, 1680x1050~60Hz 
           OpenGL: renderer: Mesa DRI Intel Ivybridge Mobile v: 4.2 Mesa 18.3.6 compat-v: 3.0 
           direct render: Yes 
Audio:     Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Lenovo 
           driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:1e20 
           Sound Server: ALSA v: k4.19.0-6-amd64 
Network:   Device-1: Realtek RTL8101/2/6E PCI Express Fast/Gigabit Ethernet 
           vendor: Lenovo RTL810xE driver: r8169 v: kernel port: 2000 bus ID: 03:00.0 
           chip ID: 10ec:8136 
           IF: eth0 state: down mac: <filter> 
           Device-2: Intel Centrino Wireless-N 2200 driver: iwlwifi v: kernel port: 2000 
           bus ID: 04:00.0 chip ID: 8086:0891 
           IF: wlan0 state: up mac: <filter> 
Drives:    Local Storage: total: 223.58 GiB used: 18.11 GiB (8.1%) 
           ID-1: /dev/sda vendor: Western Digital model: WDS240G2G0A-00JH30 size: 223.58 GiB 
           block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s serial: <filter> rev: 0000 
           scheme: MBR 
Partition: ID-1: / raw size: 221.55 GiB size: 217.07 GiB (97.98%) used: 18.11 GiB (8.3%) 
           fs: ext4 dev: /dev/sda1 
           ID-2: swap-1 size: 2.00 GiB used: 0 KiB (0.0%) fs: swap swappiness: 15 (default 60) 
           cache pressure: 100 (default) dev: /dev/sda2 
Sensors:   System Temperatures: cpu: 43.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Repos:     No active apt repos in: /etc/apt/sources.list 
           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/ buster main
           Active apt repos in: /etc/apt/sources.list.d/debian-stable-updates.list 
           1: deb http://deb.debian.org/debian buster-updates main contrib non-free
           Active apt repos in: /etc/apt/sources.list.d/debian.list 
           1: deb http://deb.debian.org/debian buster main contrib non-free
           2: deb http://deb.debian.org/debian-security buster/updates main contrib non-free
           Active apt repos in: /etc/apt/sources.list.d/mx.list 
           1: deb http://mxrepo.com/mx/repo/ buster main non-free
           No active apt repos in: /etc/apt/sources.list.d/various.list 
Info:      Processes: 221 Uptime: 4m Memory: 3.72 GiB used: 1.06 GiB (28.6%) Init: SysVinit 
           v: 2.93 runlevel: 5 default: 5 Compilers: gcc: 8.3.0 alt: 8 Shell: bash v: 5.0.3 
           running in: quick-system-in inxi: 3.0.36 

[tolcan]

I am having a same kind of problem. Unlocking is a problem after screensaver is on. I have to restart it. It is a Desktop.
I have done complete new OS install three times. Now running AHS. It has the same problem.
There is a problem with power management or with XFCE4 screensaver.
Thank you very much in advance.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

System: Host: mxdt01 Kernel: 5.4.0-3-amd64 x86_64 bits: 64 compiler: gcc v: 8.3.0
parameters: BOOT_IMAGE=/vmlinuz-5.4.0-3-amd64
root=UUID=f50d1e10-1b21-4412-847a-e18e507d7204 ro quiet splash
Desktop: Xfce 4.14.2 tk: Gtk 3.24.5 info: xfce4-panel wm: xfwm4 dm: LightDM 1.26.0
Distro: MX-19.1_ahs_x64 patito feo February 15 2019
base: Debian GNU/Linux 10 (buster)
Machine: Type: Desktop System: Gigabyte product: Z390 DESIGNARE v: N/A serial: <filter>
Mobo: Gigabyte model: Z390 DESIGNARE-CF v: x.x serial: <filter>
UEFI [Legacy]: American Megatrends v: F8 date: 10/15/2019
Battery: Device-1: hidpp_battery_0 model: Logitech K520 serial: <filter>
charge: 70% (should be ignored) rechargeable: yes status: Discharging
Device-2: hidpp_battery_1 model: Logitech Wireless Mouse M310/M310t serial: <filter>
charge: 55% (should be ignored) rechargeable: yes status: Discharging
CPU: Topology: 6-Core model: Intel Core i5-9600K bits: 64 type: MCP arch: Kaby Lake
family: 6 model-id: 9E (158) stepping: C (12) microcode: CA L2 cache: 9216 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 44398
Speed: 800 MHz min/max: 800/4600 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800
5: 800 6: 800
Vulnerabilities: Type: itlb_multihit status: KVM: Split huge pages
Type: l1tf status: Not affected
Type: mds mitigation: Clear CPU buffers; SMT disabled
Type: meltdown status: Not affected
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, IBRS_FW,
STIBP: disabled, RSB filling
Type: tsx_async_abort mitigation: Clear CPU buffers; SMT disabled
Graphics: Device-1: NVIDIA GP107 [GeForce GTX 1050 Ti] vendor: Gigabyte driver: nouveau
v: kernel bus ID: 01:00.0 chip ID: 10de:1c82
Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa
resolution: 2560x1440~60Hz
OpenGL: renderer: NV137 v: 4.3 Mesa 19.3.3 direct render: Yes
Audio: Device-1: Intel Cannon Lake PCH cAVS vendor: Gigabyte driver: snd_hda_intel v: kernel
bus ID: 00:1f.3 chip ID: 8086:a348
Device-2: NVIDIA GP107GL High Definition Audio vendor: Gigabyte driver: snd_hda_intel
v: kernel bus ID: 01:00.1 chip ID: 10de:0fb9
Sound Server: ALSA v: k5.4.0-3-amd64
Network: Device-1: Intel Wireless-AC 9560 [Jefferson Peak] driver: iwlwifi v: kernel
bus ID: 00:14.3 chip ID: 8086:a370
IF: wlan0 state: down mac: <filter>
Device-2: Intel Ethernet I219-V vendor: Gigabyte driver: e1000e v: 3.2.6-k port: efa0
bus ID: 00:1f.6 chip ID: 8086:15bc
IF: eth1 state: up speed: 1000 Mbps duplex: full mac: <filter>
Device-3: Intel I211 Gigabit Network vendor: Gigabyte driver: igb v: 5.6.0-k
port: 3000 bus ID: 04:00.0 chip ID: 8086:1539
IF: eth0 state: down mac: <filter>
Drives: Local Storage: total: 465.76 GiB used: 64.32 GiB (13.8%)
ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 500GB size: 465.76 GiB
block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 serial: <filter>
rev: 2B2QEXM7 scheme: MBR
Partition: ID-1: / raw size: 74.14 GiB size: 72.48 GiB (97.75%) used: 11.08 GiB (15.3%) fs: ext4
dev: /dev/dm-0
ID-2: /boot raw size: 748.0 MiB size: 720.2 MiB (96.29%) used: 88.0 MiB (12.2%)
fs: ext4 dev: /dev/nvme0n1p1
Sensors: System Temperatures: cpu: 45.0 C mobo: 27.8 C gpu: nouveau temp: 50 C
Fan Speeds (RPM): N/A gpu: nouveau fan: 0
Repos: No active apt repos in: /etc/apt/sources.list
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/ buster main
Active apt repos in: /etc/apt/sources.list.d/debian-stable-updates.list
1: deb http://deb.debian.org/debian buster-updates main contrib non-free
Active apt repos in: /etc/apt/sources.list.d/debian.list
1: deb http://deb.debian.org/debian buster main contrib non-free
2: deb http://deb.debian.org/debian-security buster/updates main contrib non-free
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/mx.list
1: deb https://mx-linux.ethz.ch/mx-packages/mx/repo/ buster main non-free
2: deb https://mx-linux.ethz.ch/mx-packages/mx/repo/ buster ahs
No active apt repos in: /etc/apt/sources.list.d/various.list
Active apt repos in: /etc/apt/sources.list.d/vivaldi.list
1: deb http://repo.vivaldi.com/stable/deb/ stable main
Info: Processes: 294 Uptime: 12h 46m Memory: 31.36 GiB used: 6.91 GiB (22.0%)
Init: SysVinit v: 2.93 runlevel: 5 default: 5 Compilers: gcc: 8.3.0 alt: 8
Shell: bash v: 5.0.3 running in: quick-system-in inxi: 3.0.36

[JayM]

@hannlec, try installing the antiX 4.9 kernel from MX Package Installer, Popular Applications tab, Kernels category, then at next boot select that one under the advanced options submenu in your grub boot screen. If that fixes it you can set 4.9 as your default kernel in MX Boot Options. (Apologies for not responding sooner. Real life got in the way.)

@tolcan: please start your own topic and wrap your system info/logfile contents/etc. in [code] [/code] tags using the </> icon in the forum editor so it's easy to read.