How does one activate screen blanking on the vt's these days?
I have an ancient 32-bit x86 Acer mini laptop running as a server where the X11 greeter just started crashing in a tight loop. I've turned the graphical login off but that leaves me with the first vt's login prompt displaying. Whatever is responsible for blanking the screen seems not to be doing its thing. Where is the screen blank timer configuration these days? It has been so long and things have changed so much that google is useless. I assume systemd has absorbed that function by now but I can't find it. /etc/systemd/logind.conf doesn't seem to have a screenblank setting even though it seems to have everything else.
-wolfgang
On Mon, 09 Apr 2018 08:57:12 -0700 Wolfgang S Rupprecht wolfgang.rupprecht@gmail.com wrote:
How does one activate screen blanking on the vt's these days?
I use setterm --blank=60 to prevent the screens from blanking after whatever the default is (10 minutes?). I don't know where the actual setting is, though. But you could put it in an rc.local file with whatever value you want to use so it is set on startup.
stan stanl-fedorauser@vfemail.net writes:
On Mon, 09 Apr 2018 08:57:12 -0700 Wolfgang S Rupprecht wolfgang.rupprecht@gmail.com wrote:
How does one activate screen blanking on the vt's these days?
I use setterm --blank=60 to prevent the screens from blanking after whatever the default is (10 minutes?). I don't know where the actual setting is, though. But you could put it in an rc.local file with whatever value you want to use so it is set on startup.
Thanks.
That looks like a fine solution if you are logged in on a terminal and you want to change it for your current terminal. I'm not sure how that would work from rc.local. How would I tell it to do that to all the vt's? (I tried the stdin and stdout as redirection targets but it didn't seem to work.)
-wolfgang
On Mon, 09 Apr 2018 12:56:43 -0700 Wolfgang S Rupprecht wolfgang.rupprecht@gmail.com wrote:
That looks like a fine solution if you are logged in on a terminal and you want to change it for your current terminal. I'm not sure how that would work from rc.local. How would I tell it to do that to all the vt's? (I tried the stdin and stdout as redirection targets but it didn't seem to work.)
A quick search turned up these pages, which should get you a little further on your journey.
https://superuser.com/questions/152347/change-linux-console-screen-blanking-...
https://unix.stackexchange.com/questions/8056/disable-screen-blanking-on-tex...
stan stanl-fedorauser@vfemail.net writes:
On Mon, 09 Apr 2018 12:56:43 -0700 Wolfgang S Rupprecht wolfgang.rupprecht@gmail.com wrote:
That looks like a fine solution if you are logged in on a terminal and you want to change it for your current terminal. I'm not sure how that would work from rc.local. How would I tell it to do that to all the vt's? (I tried the stdin and stdout as redirection targets but it didn't seem to work.)
A quick search turned up these pages, which should get you a little further on your journey.
https://superuser.com/questions/152347/change-linux-console-screen-blanking-...
https://unix.stackexchange.com/questions/8056/disable-screen-blanking-on-tex...
Thanks. Those are both 7 years old and things appear to have changed much.
[wolfgang@arbol ~]$ setterm -blank 600 setterm: argument error: 600
Not only is the "-blank" missing but I believe it applies to the current tty. That would make it difficult to slip into /etc/rc.local .
-wolfgang
On 04/13/18 06:16, Wolfgang S. Rupprecht wrote:
stan stanl-fedorauser@vfemail.net writes:
On Mon, 09 Apr 2018 12:56:43 -0700 Wolfgang S Rupprecht wolfgang.rupprecht@gmail.com wrote:
That looks like a fine solution if you are logged in on a terminal and you want to change it for your current terminal. I'm not sure how that would work from rc.local. How would I tell it to do that to all the vt's? (I tried the stdin and stdout as redirection targets but it didn't seem to work.)
A quick search turned up these pages, which should get you a little further on your journey.
https://superuser.com/questions/152347/change-linux-console-screen-blanking-...
https://unix.stackexchange.com/questions/8056/disable-screen-blanking-on-tex...
Thanks. Those are both 7 years old and things appear to have changed much.
[wolfgang@arbol ~]$ setterm -blank 600 setterm: argument error: 600
Not only is the "-blank" missing but I believe it applies to the current tty. That would make it difficult to slip into /etc/rc.local .
man setterm
--blank [0-60|force|poke] (virtual consoles only)
Sets the interval of inactivity, in minutes, after which the screen will be automatically blanked (using APM if available). Without an argument, it gets the blank status (returns which vt was blanked, or zero for an unblanked vt).
The force option keeps the screen blank even if a key is pressed.
The poke option unblanks the screen.
Double Dash :-) :-)
On 04/12/2018 03:16 PM, Wolfgang S. Rupprecht wrote:
stan stanl-fedorauser@vfemail.net writes:
On Mon, 09 Apr 2018 12:56:43 -0700 Wolfgang S Rupprecht wolfgang.rupprecht@gmail.com wrote:
That looks like a fine solution if you are logged in on a terminal and you want to change it for your current terminal. I'm not sure how that would work from rc.local. How would I tell it to do that to all the vt's? (I tried the stdin and stdout as redirection targets but it didn't seem to work.)
A quick search turned up these pages, which should get you a little further on your journey.
https://superuser.com/questions/152347/change-linux-console-screen-blanking-...
https://unix.stackexchange.com/questions/8056/disable-screen-blanking-on-tex...
Thanks. Those are both 7 years old and things appear to have changed much.
[wolfgang@arbol ~]$ setterm -blank 600 setterm: argument error: 600
Not only is the "-blank" missing but I believe it applies to the current tty. That would make it difficult to slip into /etc/rc.local .
The option is "--blank" (two dashes, as are most multicharacter command line options) and the maximum value allowed is 60 (this is in minutes), with 0 meaning "don't blank at all". And yes, it's for the current VT. I know of no way of forcing it onto other VTs, and I still really don't see a reason to need to change it unless you're watching a terminal for output for some reason. ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@alldigital.com - - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 - - - - On a scale of 1 to 10 I'd say... oh, somewhere in there. - ----------------------------------------------------------------------
On Thu, 12 Apr 2018 15:16:52 -0700 "Wolfgang S. Rupprecht" wolfgang.rupprecht@gmail.com wrote:
stan stanl-fedorauser@vfemail.net writes:
A quick search turned up these pages, which should get you a little further on your journey.
https://superuser.com/questions/152347/change-linux-console-screen-blanking-...
https://unix.stackexchange.com/questions/8056/disable-screen-blanking-on-tex...
Thanks. Those are both 7 years old and things appear to have changed much.
Did you try this from the suggestions at the links? I didn't, but the console has not changed that drastically lately because the emphasis has been on the GUI, so it should still work.
""" The only permanent solution is to add consoleblank=0 to the kernel command-line. You can view the value (which defaults to 600 seconds) in:
/sys/module/kernel/parameters/consoleblank """
""" The default console blanking behavior is baked into the kernel at compile time. It is configurable at boot time with the paramater consoleblank=, or in userspace with setterm. From the kernel documentation (kernel-parameters.txt):
consoleblank= [KNL] The console blank (screen saver) timeout in seconds. Defaults to 10*60 = 10mins. A value of 0 disables the blank timer. """
I see it is still documented in the kernel Documentation, so I don't think it has gone away, and the path is still there on my system.
-
Ed Greshko -
Rick Stevens -
stan -
Wolfgang S Rupprecht -
Wolfgang S. Rupprecht