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

[Tarek El-Sherbiny]

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?

Thanks,
Tarek


On Mon, Dec 2, 2013 at 5:07 PM, Eric Nelson <eric.nelson at boundarydevices.com
> wrote:

> Hi Tarek,
>
>
> On 12/02/2013 09:51 AM, Tarek El-Sherbiny wrote:
>
>> Hello,
>>
>> I'm building the latest Yocto branch (/dora/) for the Nitrogen6 board as
>>
>> given by this post:
>> http://boundarydevices.com/yocto-dora-release-mx6/
>>
>> The image is based on core-image-basic + packagegroup-fsl-gstreamer .
>>
>> When I boot the nitrogen board I get the following kernel messages then
>> system hangs:
>>
>>
>>  <snip>
>>
>>
>> INIT: version 2.88 booting
>>
>> generic-usb: probe of 0003:D0D9:0002.0001 failed with error -22
>> usb 2-1.2: new low speed USB device number 4 using fsl-ehci
>> Starting udev
>> Starting Bootlog daemon: input: USB Optical Mouse as
>> /devices/platform/fsl-ehci.1/usb2/2-1/2-1.2/2-1.2:1.0/input/input1
>> generic-usb 0003:0461:4D0F.0002: input,hidraw0: USB HID v1.11 Mouse [USB
>> Optical Mouse] on usb-fsl-ehci.1-1.2/input0
>> udevd[1433]: starting version 182
>> camera_reset: power_gp=0x6, reset_gp=0x8 reset_gp2=0xab
>> ov5642_powerdown: powerdown=0, power_gp=0x6
>> ov5642_read_reg:write reg error:reg=300a
>> camera ov5642 is not found
>> mxc_sdc_fb mxc_sdc_fb.0: timeout when waiting for flip irq
>> bootlogd.
>>
>> ALSA: Restoring mixer settings...
>>
>> Configuring network interfaces... eth0: Freescale FEC PHY driver [Micrel
>> KSZ9021 Gigabit PHY] (mii_bus:phy_addr=1:06, irq=284)
>> udhcpc (v1.21.1) started
>>
>> Sending discover...
>>
>> mxc_hdmi mxc_hdmi: same edid
>> mxc_hdmi mxc_hdmi: mxc_hdmi_edid_rebuild_modelist: Added mode 0(VIC 16):
>> mxc_hdmi mxc_hdmi: mxc_hdmi_edid_rebuild_modelist: Added mode 1(VIC 0):
>> mxc_hdmi mxc_hdmi: mxc_hdmi_edid_rebuild_modelist: Added mode 23(VIC 0):
>>
>> What exactly is missing?
>>
>>
> It doesn't appear that your machine is hanging, but rather bouncing
> on HDMI connect/disconnect. Jose reported this a while back:
>
>         https://lists.yoctoproject.org/pipermail/meta-freescale/
> 2013-October/005113.html
>
> Can you try applying this patch into sources/meta-fsl-arm-extra?
>
>         ~/yocto/sources/meta-fsl-arm-extra$ patch -p1 < 0001-*.patch
>
> We've seen some issues with particular monitors (especially DVI) where
> the DVI/HDMI detection pins seem to "bounce" when X starts up.
>
> This kernel version includes a patch which bypasses the HDMI/DVI
> disconnect code:
>         https://github.com/boundarydevices/linux-imx6/commit/
> d9cd79d11ff9f7a7f89cbc94b68757b67cdfe5fc
>
>
> Please advise,
>
>
> Eric
>



-- 
*Tarek*
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