[meta-freescale] i.MX6q Boot failure using MACHINE=nitrogen6x

[Tarek El-Sherbiny]

Hi Eric,

root at nitrogen6x:~# cat /sys/class/graphics/fb0/modes
S:720x480p-60
S:720x576p-50
S:1280x720p-50
S:1280x720p-60
S:1280x1024p-60
V:1024x768p-75
V:1024x768p-70
V:1024x768p-60
V:800x600p-75
V:800x600p-72
V:800x600p-60
V:640x480p-75
V:640x480p-72
V:640x480p-60
U:720x400p-70
D:1360x768p-60
D:1280x720p-60
V:640x480p-60
root at nitrogen6x:~# cat /sys/class/graphics/fb0/mode
S:1280x1024p-60


I'm not running the latest U-boot!

Thanks,
Tarek




On Tue, Dec 3, 2013 at 2:48 PM, Eric Nelson <eric.nelson at boundarydevices.com
> wrote:

> Hi Tarek,
>
>
> On 12/03/2013 05:43 AM, Tarek El-Sherbiny wrote:
>
>> Hi Eric,
>>
>> Thank you very much for the patch. With the new kernel I don't see the
>> bouncing on HDMI problem.
>> I am using HDMI to DVI cable to test 1080 as I don't have 1080 HDMI
>> monitor.
>> With the new kernel Linux does not drive the DVI monitor at all. I
>> switched to 720 HDMI monitor and now there is output signal but I get
>> horizontal scrolling lines across the screen!
>> I don't see this problem with u-boot or Freescale kernel.
>> Have you seen this problem before?
>>
>>
> Can you forward the output from /sys/class/graphics/fb0/modes and
> /sys/class/graphics/fb0/mode from each of these displays?
>
> It's possible that we're blocking some of the modes because they
> don't support audio:
>         https://github.com/boundarydevices/linux-imx6/commit/
> 104d4ebfcad4021ed982ec0f436d56c3d0f44068
>
> We added a driver parameter to the mxc_hdmi driver to force
> the use of CEA modes. You can override it with this kernel
> command-line parameter.
>         mxc_hdmi.only_cea=0
>
> If you're running a recent U-Boot, you can also get a list
> of supported modes from your monitor using these two
> commands:
>         U-Boot > i2c dev 1
>         U-Boot > i2c edid
>
> Please advise,
>
>
> Eric
>



-- 
*Tarek*
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