vdr April 2023

vdr@linuxtv.org

5 participants
2 discussions

Wake-on-timer rtcwake experiments on various PC hardware
by Marko Mäkelä 18 Apr '23

18 Apr '23

Today, I tested rtcwake on several x86 or x86-64 based computers. The outcome: (1) Suspend to RAM (say, "rtcwake -m mem -s 10"): * Success: Every system. (2) Wake-on-timer ("rtcwake -m no -s 120 && shutdown -h now" or "rtcwake -m off -s 120"): * Success: Lenovo Thinkpad X220 (2012?), and a 5-year-old desktop system * Fail: IBM Thinkpad X60 (Core Duo from 2006), a HP Zbook from 2016. (3) Suspend to disk ("rtcwake -m disk -s 120") had no chance of working, because I never configure … [View More]

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Integartion with systemd and rtcwake
by Marko Mäkelä 15 Apr '23

15 Apr '23

Some time ago, I created the wiki page https://www.linuxtv.org/vdrwiki/index.php/Systemd that describes much of my VDR installation. On my Raspberry Pi, there is no real-time-clock. My low-tech solution for waking up VDR for recordings is that I set an alarm on my phone, to remind me to turn on VDR when needed. Today, I refined that a little by implementing an idle timeout shutdown when no further recording timers exist, or when they are in the distant enough future. I learned that … [View More]

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vdr April 2023