Hi, I have a new monitor on this old machine at a secondary location. Got it cheap, a returned item to a shop. An LG 22MP410, connected to my old machine with Nvidia graphics. The problem is that (apparently) when the desktop sends the display to sleep for inactivity, pressing a key doesn't wake it up. Nor disconnecting both cables. What works is pressing the menu key of the monitor. I am using XFCE desktop on Leap 15.4. Screensaver is disabled. Power Manager / Display is set to - Blank after 10 minutes - put to sleep after 10 minutes - Switch off after 30 minutes. But it is all deactivated! (I had it deactivated for the previous display, decades old hardware, that would hang the machine on sleep. I will try to activate it and see). Hum... Now that I write this, I'm suspecting that it was "powered off". But this thing doesn't have a power on/off switch! It has a... tiny "joystick" in a recess under the bottom edge. It can be pressed, which activates the menu, and moved to the sides as a cursor key. I found it by blind touching everywhere this morning. The papers don't mention it. Maybe it went to sleep because the monitor, not the computer, decided so... no, that is set to 4 hours. It was the computer. Elesar:~ # hwinfo --gfxcard 18: PCI 100.0: 0300 VGA compatible controller (VGA) [Created at pci.386] Unique ID: VCu0.on6Ysc6JyT1 Parent ID: H0_h.3kPMz12AcD0 SysFS ID: /devices/pci0000:00/0000:00:06.0/0000:01:00.0 SysFS BusID: 0000:01:00.0 Hardware Class: graphics card Model: "nVidia G96C [GeForce 9500 GT]" Vendor: pci 0x10de "nVidia Corporation" Device: pci 0x0640 "G96C [GeForce 9500 GT]" SubVendor: pci 0x1462 "Micro-Star International Co., Ltd. [MSI]" SubDevice: pci 0x1573 Revision: 0xa1 Driver: "nouveau" Driver Modules: "nouveau" Memory Range: 0xfd000000-0xfdffffff (rw,non-prefetchable) Memory Range: 0xd0000000-0xdfffffff (ro,non-prefetchable) Memory Range: 0xfa000000-0xfbffffff (rw,non-prefetchable) I/O Ports: 0x9c00-0x9c7f (rw) Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled) IRQ: 32 (2267233 events) I/O Ports: 0x3c0-0x3df (rw) Module Alias: "pci:v000010DEd00000640sv00001462sd00001573bc03sc00i00" Driver Info #0: Driver Status: nouveau is active Driver Activation Cmd: "modprobe nouveau" Config Status: cfg=new, avail=yes, need=no, active=unknown Attached to: #30 (PCI bridge) Primary display adapter: #18 Elesar:~ # hwinfo --monitor 31: None 00.0: 10002 LCD Monitor [Created at monitor.125] Unique ID: rdCR.uluPkDjUuA7 Parent ID: VCu0.on6Ysc6JyT1 Hardware Class: monitor Model: "LG ELECTRONICS LG FULL HD" Vendor: GSM "LG ELECTRONICS" Device: eisa 0x5bfb "LG FULL HD" Serial ID: "" Resolution: 720x400@70Hz Resolution: 640x480@60Hz Resolution: 640x480@75Hz Resolution: 800x600@60Hz Resolution: 800x600@75Hz Resolution: 1024x768@60Hz Resolution: 1024x768@75Hz Resolution: 1280x1024@75Hz Resolution: 1152x864@75Hz Resolution: 1280x1024@60Hz Resolution: 1920x1080@60Hz Size: 480x270 mm Year of Manufacture: 2016 Week of Manufacture: 1 Detailed Timings #0: Resolution: 1920x1080 Horizontal: 1920 2008 2052 2200 (+88 +132 +280) +hsync Vertical: 1080 1084 1089 1125 (+4 +9 +45) +vsync Frequencies: 148.50 MHz, 67.50 kHz, 60.00 Hz Driver Info #0: Max. Resolution: 1920x1080 Vert. Sync Range: 56-75 Hz Hor. Sync Range: 30-85 kHz Bandwidth: 148 MHz Config Status: cfg=new, avail=yes, need=no, active=unknown Attached to: #11 (VGA compatible controller) Elesar:~ # Elesar:~ # inxi -G Graphics: Device-1: NVIDIA G96C [GeForce 9500 GT] driver: nouveau v: kernel Display: server: X.Org 1.20.3 driver: loaded: nouveau unloaded: fbdev,modesetting,vesa resolution: 1920x1080~60Hz OpenGL: renderer: NV96 v: 3.3 Mesa 21.2.4 Elesar:~ # inxi CPU: Quad Core Intel Core2 Quad Q9550 (-MCP-) speed: 2841 MHz Kernel: 5.14.21-150400.24.38-default x86_64 Up: 4h 47m Mem: 4667.4/7942.3 MiB (58.8%) Storage: 232.89 GiB (14.7% used) Procs: 301 Shell: Bash inxi: 3.3.07 Elesar:~ # -- Cheers / Saludos, Carlos E. R. (from Elesar, using openSUSE Leap 15.4)