* [ptxdist] Qt qws app, screen goes blank
@ 2012-12-27 7:34 Ionut Grigorescu
2012-12-27 7:38 ` Ionut Grigorescu
2012-12-28 14:02 ` Wolf, Matthias
0 siblings, 2 replies; 6+ messages in thread
From: Ionut Grigorescu @ 2012-12-27 7:34 UTC (permalink / raw)
To: ptxdist
[-- Attachment #1.1: Type: text/plain, Size: 256 bytes --]
Hi everyone,
I,ve built a simple qt application, which runs on a friendly arm.
Afer about 20 minutes, the screen goes blank, an touching the screen does
not resurrect it.
Any ideas on how to turn the screen blanking off?
Thanks in advance!
Happy holidays!
[-- Attachment #1.2: Type: text/html, Size: 283 bytes --]
[-- Attachment #2: Type: text/plain, Size: 48 bytes --]
--
ptxdist mailing list
ptxdist@pengutronix.de
^ permalink raw reply [flat|nested] 6+ messages in thread
* [ptxdist] Qt qws app, screen goes blank
2012-12-27 7:34 [ptxdist] Qt qws app, screen goes blank Ionut Grigorescu
@ 2012-12-27 7:38 ` Ionut Grigorescu
2012-12-27 13:50 ` Juergen Beisert
2012-12-28 14:02 ` Wolf, Matthias
1 sibling, 1 reply; 6+ messages in thread
From: Ionut Grigorescu @ 2012-12-27 7:38 UTC (permalink / raw)
To: ptxdist
[-- Attachment #1.1: Type: text/plain, Size: 256 bytes --]
Hi everyone,
I,ve built a simple qt application, which runs on a friendly arm.
Afer about 20 minutes, the screen goes blank, an touching the screen does
not resurrect it.
Any ideas on how to turn the screen blanking off?
Thanks in advance!
Happy holidays!
[-- Attachment #1.2: Type: text/html, Size: 284 bytes --]
[-- Attachment #2: Type: text/plain, Size: 48 bytes --]
--
ptxdist mailing list
ptxdist@pengutronix.de
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ptxdist] Qt qws app, screen goes blank
2012-12-27 7:38 ` Ionut Grigorescu
@ 2012-12-27 13:50 ` Juergen Beisert
2012-12-27 21:53 ` Ionut Grigorescu
0 siblings, 1 reply; 6+ messages in thread
From: Juergen Beisert @ 2012-12-27 13:50 UTC (permalink / raw)
To: ptxdist; +Cc: Ionut Grigorescu
Hi Ionut,
Ionut Grigorescu wrote:
> I,ve built a simple qt application, which runs on a friendly arm.
> Afer about 20 minutes, the screen goes blank, an touching the screen does
> not resurrect it.
> Any ideas on how to turn the screen blanking off?
> Thanks in advance!
Did you enable the framebuffer console support? If yes disable it in the
kernel config or give your kernel the parameter "consoleblank=0".
From kernel's 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.
Regards,
Juergen
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | http://www.pengutronix.de/ |
--
ptxdist mailing list
ptxdist@pengutronix.de
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ptxdist] Qt qws app, screen goes blank
2012-12-27 7:34 [ptxdist] Qt qws app, screen goes blank Ionut Grigorescu
2012-12-27 7:38 ` Ionut Grigorescu
@ 2012-12-28 14:02 ` Wolf, Matthias
2012-12-30 22:35 ` Ionut Grigorescu
1 sibling, 1 reply; 6+ messages in thread
From: Wolf, Matthias @ 2012-12-28 14:02 UTC (permalink / raw)
To: ptxdist
Hi Ionut,
I suppose this is due to the fact that the touch event of the touch screen does not trigger the wake up event that is needed to resume from the power saving state. I guess your friendly arm got tired and went to sleep... ;o)
I've no solution in a trice - but this might give you a hint where to dig down to the solution...
Best regards an happy new year.
M. Wolf
Hi everyone,
I,ve built a simple qt application, which runs on a friendly arm.
Afer about 20 minutes, the screen goes blank, an touching the screen does not resurrect it.
Any ideas on how to turn the screen blanking off?
Thanks in advance!
Happy holidays!
Eckelmann Aktiengesellschaft
Vorstand: Dr.-Ing. Gerd Eckelmann (Vorsitzender)
Dr.-Ing. Peter Cordes, Dr.-Ing. Frank-Thomas Mellert
Vorsitzender des Aufsichtsrats: Hubertus G. Krossa
Sitz der Gesellschaft: Berliner Str. 161, 65205 Wiesbaden, Amtsgericht Wiesbaden HRB 12636
http://www.eckelmann.de
--
ptxdist mailing list
ptxdist@pengutronix.de
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [ptxdist] Qt qws app, screen goes blank
2012-12-28 14:02 ` Wolf, Matthias
@ 2012-12-30 22:35 ` Ionut Grigorescu
0 siblings, 0 replies; 6+ messages in thread
From: Ionut Grigorescu @ 2012-12-30 22:35 UTC (permalink / raw)
To: ptxdist
[-- Attachment #1.1: Type: text/plain, Size: 1433 bytes --]
Hi Matthias,
giving the consoleblank=0 boot parameter solves the problem. What I need
now would be to set it at runtime, and the setterm -blank 0 command doesn't
seem to work.
I could not figure the sysctl way.
Happy new year and all the best!
On Fri, Dec 28, 2012 at 4:02 PM, Wolf, Matthias <M.Wolf@eckelmann.de> wrote:
> Hi Ionut,
>
> I suppose this is due to the fact that the touch event of the touch screen
> does not trigger the wake up event that is needed to resume from the power
> saving state. I guess your friendly arm got tired and went to sleep... ;o)
>
> I've no solution in a trice - but this might give you a hint where to dig
> down to the solution...
>
> Best regards an happy new year.
> M. Wolf
>
>
>
> Hi everyone,
> I,ve built a simple qt application, which runs on a friendly arm.
> Afer about 20 minutes, the screen goes blank, an touching the screen does
> not resurrect it.
> Any ideas on how to turn the screen blanking off?
> Thanks in advance!
> Happy holidays!
> Eckelmann Aktiengesellschaft
> Vorstand: Dr.-Ing. Gerd Eckelmann (Vorsitzender)
> Dr.-Ing. Peter Cordes, Dr.-Ing. Frank-Thomas Mellert
> Vorsitzender des Aufsichtsrats: Hubertus G. Krossa
> Sitz der Gesellschaft: Berliner Str. 161, 65205 Wiesbaden, Amtsgericht
> Wiesbaden HRB 12636
> http://www.eckelmann.de
>
> --
> ptxdist mailing list
> ptxdist@pengutronix.de
>
--
Ionut Grigorescu
Product Developer
OpenDev Labs
0741.080.800
[-- Attachment #1.2: Type: text/html, Size: 2087 bytes --]
[-- Attachment #2: Type: text/plain, Size: 48 bytes --]
--
ptxdist mailing list
ptxdist@pengutronix.de
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-12-30 22:35 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-12-27 7:34 [ptxdist] Qt qws app, screen goes blank Ionut Grigorescu
2012-12-27 7:38 ` Ionut Grigorescu
2012-12-27 13:50 ` Juergen Beisert
2012-12-27 21:53 ` Ionut Grigorescu
2012-12-28 14:02 ` Wolf, Matthias
2012-12-30 22:35 ` Ionut Grigorescu
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox