[directfb-users] DirectFB 1.7 display failure on IMX6 dfb backend image

Ben Combee

2014-11-04 18:11:33 UTC

Subodh, I see you asking lots of questions that don't get answered on
the DirectFB mailing list. Please take a moment and read through
http://www.catb.org/esr/faqs/smart-questions.html, it will give a lot
of pointers on how to ask better questions.

Specifically, your questions lack some important information:

1) what development board are you using? You mention the imx6Q, but
there's a lot of different boards for that, and they may be wired up
differently.
2) what Linux distribution are you using? You mention the DFB version
number, but not the rest of the system config. It looks like you're
using something based on Yocto based on the log output, but let us
know if you built it yourself or got it as part of a board support
package.
2) what have you done to try to solve the problem? Just giving an
error dump is a very open-ended thing. State things like "I looked
for a configuration to adjust the resolution" or "I tried using an
alternative output".

For this specific question, I'd first see if the monitor supports the
mode you're using. Try to make a laptop connect in that same mode to
verify that it's working. If that doesn't work, try making the DFB
config use a mode that's more common on HDMI, like 1280x720x60.

Also know that it's very likely no one else on this list has your
exact setup. dfb-users hasn't been very active recently, so you might
be on your own.

On Tue, Nov 4, 2014 at 4:34 AM, Subodh Chiwate

Post by Subodh Chiwate
Hi,
I am using dfb backend on Freescale imx6Q.
When I try to run any example of dfb I get the following error.
and HDMI monitor shows Unsupport message.
Please help me fix this issue.
(*) Direct/Thread: Started 'SigHandler' (1715) [CRITICAL - OTHER/0] <8388608>...
~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.7.1 |~~~~~~~~~~~~~~~~~~~~~~~~~~
(c) 2012-2013 DirectFB integrated media GmbH
(c) 2001-2013 The world wide DirectFB Open Source Community
(c) 2000-2004 Convergence (integrated media) GmbH
----------------------------------------------------------------
(*) DirectFB/Core: Single Application Core. (2014-10-20 12:07)
(*) Direct/Memcpy: Using libc memcpy()
(*) Direct/Thread: Started 'Fusion Dispatch' (1716) [MESSAGING - OTHER/0] <8388608>...
(*) Direct/Thread: Started 'VT Switcher' (1717) [CRITICAL - OTHER/0] <8388608>...
(*) Direct/Thread: Started 'VT Flusher' (1718) [DEFAULT - OTHER/0] <8388608>...
(*) DirectFB/FBDev: Found 'DISP3 BG' (ID 0) with frame buffer at 0x3c100000,
4050k (MMIO 0x00000000, 0k)
(*) Direct/Thread: Started 'Linux Input' (1719) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: max11801_ts (1) 0.1 (directfb.org)
(*) Direct/Thread: Started 'Linux Input' (1720) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: mag3110 (2) 0.1 (directfb.org)
(*) Direct/Thread: Started 'Linux Input' (1721) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: mma845x (3) 0.1 (directfb.org)
(*) Direct/Thread: Started 'Linux Input' (1722) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: gpio-keys.27 (4) 0.1 (directfb.org)
(*) Direct/Thread: Started 'Hotplug with Linux Input' (1723) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: Hot-plug detection enabled with Linux Input Driver
(*) DirectFB/Input: Hot-plug detection enabled with Input Hub Driver
(*) Direct/Thread: Started 'PS/2 Input' (1724) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: IMPS/2 Mouse 1.0 (directfb.org)
(*) Direct/Thread: Started 'Keyboard Input' (1725) [INPUT - OTHER/0] <8388608>...
(*) DirectFB/Input: Keyboard 0.9 (directfb.org)
(*) Using the default feature settings.
(*) DirectFB/Graphics: Vivante unknown chip model 1.0 (Vivante)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
(*) Direct/Thread: Started 'Genefx' (1726) [DEFAULT - OTHER/0] <8388608>...
(!!!) *** ONCE [no mode found for 1024x768] ***
[/Data/yocto/fsl-arm-yocto-bsp/build-dfb/tmp/work/imx6qsabresd-poky-linux-gnueabi/directfb/1.7.1-r0/DirectFB-1.7.1/systems/fbdev/fbdev.c:1360
in dfb_fbdev_find_mode()]
(*) FBDev/Mode: Setting 1024x768 RGB16
(*) FBDev/Mode: Switched to 1024x768 (virtual 1024x768) at 16 bit (RGB16), pitch 2048
(*) FBDev/Mode: Setting 1024x768 RGB16
(*) FBDev/Mode: Switched to 1024x768 (virtual 1024x768) at 16 bit (RGB16), pitch 2048
(*) Direct/Interface: Loaded 'FT2' implementation of 'IDirectFBFont'.
(*) Direct/Interface: Loaded 'PNG' implementation of
'IDirectFBImageProvider'.
(*) Direct/Interface: Loaded 'JPEG' implementation of
'IDirectFBImageProvider'.
(*) FBDev/Mode: Setting 1024x768 RGB16
(*) FBDev/Mode: Switched to 1024x768 (virtual 1024x1536) at 16 bit (RGB16), pitch 2048
--
Regards,
Subodh
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