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Im using Linaro Raring Server for Cubieboard A20 from here:

www.cubieforums.com/index.php?topic=807.0

After about 10 minutes, the screen goes to black, even I'm using keyboard or mouse, so seems not be a screensaver to me, since not idle. Nothing I can do brings the screen back again, only a reboot. My system still alive (my TV shows signal is active).

I'm not using GUI, so answer in terminal commands.

I don't use GUI, but have a X11, because xbmc is installed on system. At startup, xbmc starts without login.

Steps I've done:

1) Start system and XBMC. Auto login (root). Black screen after 10 min even using keyboard/mouse.

2) Start without XBMC (and GUI). Auto login (root). Black screen after 10 min even using keyboard/mouse.

Tried this https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1072531

and this How to stop screen going black after 10 min

I don't have xset and can't find where xorg.conf is.

There is a X11 in init folder. XBMC is using framebuffer.

Community
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Magno C
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  • Does this happen with other (non-root) user? Linaro Raring Server is not even Ubuntu! Also, it says "!! Unstable release !!" in red letters in the post that you linked. It also apparently uses saucy witch is another reason why it is offtopic. You should ask in their forums. – Braiam Oct 02 '13 at 20:07
  • Yes. This warning refers to use of xbmc in cubieboard (the CedarX drivers is in tests) – Magno C Oct 03 '13 at 12:09
  • @Braiam I think the main question is how to disable the "screen saver" when there is no GUI, only framebuffer. I have no xset. Maybe kernel boot commands? Maybe tty0 settings? I appreciate anything you have in mind. – Magno C Oct 03 '13 at 12:19
  • @MagnoC: It would be your display manager which is causing the problem. I want you to post the output of these commands: cat /etc/X11/default-display-manager and ls /etc/sbin/*dm. Reply.. – Saurav Kumar Oct 08 '13 at 18:03
  • @Saurav Kumar I figured out by adding consoleblank = 0 in /boot/uEnv.txt file. I think this file is the same as kernel commands in boot process. Thanks anyway. – Magno C Oct 09 '13 at 18:28
  • @MagnoC: Good to know that you solved your issue.. ;) – Saurav Kumar Oct 09 '13 at 18:30

2 Answers2

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I figured out by adding consoleblank = 0 in /boot/uEnv.txt file. I think this file is the same as kernel commands in boot process.

extraargs = disp.screen0_output_mode=1280x720p60 consoleblank=0
Magno C
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Try setting the option "LOCK_SCREEN" to false in /etc/default/acpi-support

Another place to try is via grub, edit /etc/default/grub, change GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="acpi_osi=Linux acpi_backlight=vendor"

NGRhodes
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  • I don't have grub. I don't know the boot process in details, but I have a DOS partition with some files (uEnv.txt, boot.scr, etc ... by the way, the boot is in a SDCARD). I will try your other tip. – Magno C Oct 08 '13 at 11:03
  • I think the boot is U-Boot (http://www.denx.de/wiki/U-Boot/WebHome) – Magno C Oct 08 '13 at 11:07