[Buildroot] X11: How do I prevent the target screen from going black after 10 minutes?

Fri Oct 23 11:59:33 UTC 2015

> From: "Lennart Ramberg" <ramberg.lennart at gmail.com>
> To: "Carlos Santos" <casantos at datacom.ind.br>
> Cc: "Bjørn Forsman" <bjorn.forsman at gmail.com>, "buildroot" <buildroot at busybox.net>
> Sent: Friday, October 23, 2015 7:17:29 AM
> Subject: Re: [Buildroot] X11: How do I prevent the target screen from going black after 10 minutes?

> Me again,
> Sorry for jumping at the gun;
> A script could of course be run where I start my other programs.

> But still, any opinions about xset vs. xorg.conf?
> /Lennart

The effect is the same in both cases but if you need to disable screensaver always and permanently then xorg.conf is the best choice, since it can be done statically, at build time.

Carlos Santos (Casantos)
DATACOM, P&D

> On Fri, Oct 23, 2015 at 10:21 AM, Lennart Ramberg < ramberg.lennart at gmail.com >
> wrote:

>> This worked:
>> # DISPLAY=:0 xset s off -dpms (Skipped consoleblank=0 in grub.cfg)
>> But it won't persist a restart.

>> I guess a script could run it after boot, alternativerly I could make an
>> xorg.conf.
>> How should Buildroot arrange such a script to be run automatically after boot?
>> I assume avoiding xorg.conf would be more modern/better. Or?

>> Regards
>> Lennart

>> On Thu, Oct 22, 2015 at 1:10 PM, Carlos Santos < casantos at datacom.ind.br >
>> wrote:

>>> ----- Original Message -----
>>> > From: "Lennart Ramberg" < ramberg.lennart at gmail.com >
>>> > To: "Carlos Santos" < casantos at datacom.ind.br >
>>>> Cc: "Bjørn Forsman" < bjorn.forsman at gmail.com >, "buildroot" <
>>> > buildroot at busybox.net >
>>> > Sent: Thursday, October 22, 2015 8:54:19 AM
>>>> Subject: Re: [Buildroot] X11: How do I prevent the target screen from going
>>> > black after 10 minutes?

>>> > Thanks, however:

>>> > # xset q
>>> > -sh: xset: not found

>>> Sorry, I forgot to say that you need to select the xset package, under

>>> -> Target packages
>>> -> Graphic libraries and applications (graphic/text)
>>> -> X.org X Window System
>>> -> X11R7 Applications

>>> > And yes, it goes black.

>>> :-)

>>> > Regards
>>> > Lennart

>>> Carlos Santos (Casantos)
>>> DATACOM, P&D

>>> > On Thu, Oct 22, 2015 at 12:42 PM, Carlos Santos < casantos at datacom.ind.br >
>>> > wrote:

>>> >> > From: "Lennart Ramberg" < ramberg.lennart at gmail.com >
>>> >> > To: "Bjørn Forsman" < bjorn.forsman at gmail.com >
>>> >> > Cc: "buildroot" < buildroot at busybox.net >
>>> >> > Sent: Thursday, October 22, 2015 5:44:17 AM
>>> >> > Subject: Re: [Buildroot] X11: How do I prevent the target screen from going
>>> >> > black after 10 minutes?

>>> >> > Thanks for the quick reply.
>>> >> > However, I had no success. Screen still blanks after 10 min (unless keyb/mouse
>>> >> > activity).
>>> >> > I assume this is what you meant:

>>> >> > # cat /boot/grub/grub.cfg
>>> >> > set default="0"
>>> >> > set timeout="3"

>>> >> > menuentry "Buildroot" {
>>> >> > linux /boot/bzImage root=/dev/sda1 consoleblank=0
>>> >> > }

>>> >> > Regards
>>> >> > Lennart

>>> >> Supposing that you are not running a screen saver daemon live "xscreensaver", I
>>> >> guess the screen goes blank (black?) due to the X server itself, not the Linux
>>> >> kernel. Try using

>>> >> $ xset q

>>> >> to display the screen saver timeout and

>>> >> $ xset s off

>>> >> to disable the screen saver.

>>> >> > On Wed, Oct 21, 2015 at 7:02 PM, Bjørn Forsman < bjorn.forsman at gmail.com >
>>> >> > wrote:

>>> >> >> On 21 October 2015 at 18:59, Lennart Ramberg < ramberg.lennart at gmail.com >
>>> >> >> wrote:
>>> >> >> > Hello,

>>> >> >> > Maybe not a proper Builroot question, but:
>>> >> >> > X11: How do I prevent the target screen from going black after 10 minutes?
>>> >> >> > There is no xorg.conf (to edit the ServerFlags section).
>>> >> >> > I was thinking maybe an overlay with an edited xorg.conf?

>>> >> >> Have you tried adding "consoleblank=0" to the kernel command line? (I
>>> >> >> _think_ that should do it.)

>>> >> >> Best regards,
>>> >> >> Bjørn Forsman

>>> >> > _______________________________________________
>>> >> > buildroot mailing list
>>> >> > buildroot at busybox.net
>>> >> > http://lists.busybox.net/mailman/listinfo/buildroot

>>> >> Carlos Santos (Casantos)
>>> >> DATACOM, P&D

>>> >> ----- Original Message -----
>>> >> > From: "Lennart Ramberg" < ramberg.lennart at gmail.com >
>>> >> > To: "Bjørn Forsman" < bjorn.forsman at gmail.com >
>>> >> > Cc: "buildroot" < buildroot at busybox.net >
>>> >> > Sent: Thursday, October 22, 2015 5:44:17 AM
>>> >>> Subject: Re: [Buildroot] X11: How do I prevent the target screen from going
>>> >> > black after 10 minutes?

>>> >> > Thanks for the quick reply.
>>> >> > However, I had no success. Screen still blanks after 10 min (unless keyb/mouse
>>> >> > activity).
>>> >> > I assume this is what you meant:

>>> >> > # cat /boot/grub/grub.cfg
>>> >> > set default="0"
>>> >> > set timeout="3"

>>> >> > menuentry "Buildroot" {
>>> >> > linux /boot/bzImage root=/dev/sda1 consoleblank=0
>>> >> > }

>>> >> > Regards
>>> >> > Lennart

>>> >> > On Wed, Oct 21, 2015 at 7:02 PM, Bjørn Forsman < bjorn.forsman at gmail.com >
>>> >> > wrote:

>>> >> >> On 21 October 2015 at 18:59, Lennart Ramberg < ramberg.lennart at gmail.com >
>>> >> >> wrote:
>>> >> >> > Hello,

>>> >> >> > Maybe not a proper Builroot question, but:
>>> >> >> > X11: How do I prevent the target screen from going black after 10 minutes?
>>> >> >> > There is no xorg.conf (to edit the ServerFlags section).
>>> >> >> > I was thinking maybe an overlay with an edited xorg.conf?

>>> >> >> Have you tried adding "consoleblank=0" to the kernel command line? (I
>>> >> >> _think_ that should do it.)

>>> >> >> Best regards,
>>> >> >> Bjørn Forsman

>>> >> > _______________________________________________
>>> >> > buildroot mailing list
>>> >> > buildroot at busybox.net
>>> >> > http://lists.busybox.net/mailman/listinfo/buildroot