On 2023-01-25 10:57, Michael Hamilton wrote:
On Wednesday 25 January 2023, Masaru Nomiya wrote:
Hello,
In the Message;
Subject : [oS-EN] New monitor when sent to sleep doesn't awake Message-ID :
Date & Time: Tue, 24 Jan 2023 20:31:33 +0100 [CER] == "Carlos E. R." <...> has written:
CER> Hi,
CER> I have a new monitor on this old machine at a secondary location. Got it cheap, CER> a returned item to a shop. An LG 22MP410, connected to my old machine with CER> Nvidia graphics.
CER> The problem is that (apparently) when the desktop sends the CER> display to sleep for inactivity, pressing a key doesn't wake it CER> up. Nor disconnecting both cables. What works is pressing the CER> menu key of the monitor. [...]
What is the result of;
# cat /sys/devices/system/cpu/cpuidle/current_driver
I'll try that tomorrow, today I'm at home.
Some LG monitors have an inbuilt Automatic Standby Mode. Could it be that? There is normally a menu entry for setting it off.
I think it was set to 4 hours, but tomorrow I'll try to set that off. Maybe it did not detect the day activity?
DisplayPort versus HDMI may also make a difference. DisplayPort seems to have more ability to signal the state of the monitor - which is not always a good thing.
It only has one HDMI port. And one VGA (D-Sub) It is this one (but I don't see the "-B" in the box https://www.pccomponentes.com/buscar/?query=LG%2022MP410& https://www.lg.com/es/monitores/lg-22mp410-b -- Cheers / Saludos, Carlos E. R. (from 15.4 x86_64 at Telcontar)