[arch-general] dpms in text mode worked 1st boot, now monitor blanks but won't power off

[Jakub Klinkovský]

On 03.12.13 at  8:18, David C. Rankin wrote:
> Guys,
> 
>   On my 1st boot after install of a new Arch box, the monitor would go to sleep
> in text mode. (monitor power light goes to yellow indicating sleep and screen
> goes black (off), not just blank) I thought that was a great trick, since
> normally, the screen just blanks, but the monitor doesn't really go to sleep
> (monitor power indicator on). Mouse movement (gpm) or key stroke would wake the
> monitor up as expected. After configuring the box (nothing related to display)
> on the next boot, the screen will blank, but not go to sleep (monitor power
> light remains on and screen goes blank, but not black (off))
> 
>   I can't figure out what I could have done to alter anything related to the
> display. (configuration was to mysql, httpd, named, dhcpd, samba, etc....)
> 
>   What controls whether display powers off in text mode and what can I check for
> in journalctl to help figure this out?
> 
> -- 
> David C. Rankin, J.D.,P.E.

I use 'consoleblank=<seconds>' kernel parameter to set the delay. See also
ArchWiki page:
https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling#DPMS_interaction_in_a_Linux_console_with_setterm

---
Jakub Klinkovský (Lahwaacz)
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