[Buildroot] libqeglfs.so not found on imx6

[Jagan Teki]

Hi Gary,

On Thu, Mar 2, 2017 at 10:52 PM, Gary Bisson
<gary.bisson at boundarydevices.com> wrote:
> Hi Jagan
>
> On Thu, Mar 2, 2017 at 6:15 PM, Jagan Teki <jagannadh.teki at gmail.com> wrote:
>> Hi Gary,
>>
>> On Thu, Mar 2, 2017 at 10:34 PM, Gary Bisson
>> <gary.bisson at boundarydevices.com> wrote:
>>> Hi,
>>>
>>> On Thu, Mar 2, 2017 at 6:00 PM, Jagan Teki <jagan at openedev.com> wrote:
>>>>
>>>> Hi Gary,
>>>>
>>>> On Thu, Mar 2, 2017 at 7:05 PM, Gary Bisson
>>>> <gary.bisson at boundarydevices.com> wrote:
>>>> > Hi Jagan,
>>>> >
>>>> > On Thu, Mar 2, 2017 at 2:15 PM, Jagan Teki <jagannadh.teki at gmail.com> wrote:
>>>> >>
>>>> >> Hi,
>>>> >>
>>>> >> I'm trying to build Qt5 for imx6q sabre and enabled eglfs through
>>>> >> BR2_PACKAGE_QT5BASE_EGLFS
>>>> >>
>>>> >> Any idea, did I miss anything?
>>>> >
>>>> > Here is a defconfig made for 2016.11.1 version of Buildroot for
>>>> > Nitrogen6x (i.MX6Q) which has EGLFS support:
>>>> > http://boundarydevices.com.commondatastorage.googleapis.com/buildroot-v2016.11.1-nitrogen6x-qt5.6.2_defconfig
>>>>
>>>> Thanks for the help.
>>>>
>>>> >
>>>> > Please use that config making sure to replace the kernel and u-boot
>>>> > components for your board first.
>>>>
>>>> Yeah, I was able to build eglfs, and finally I'm launching some demo
>>>> application.
>>>
>>> Good.
>>>
>>>> # /usr/share/Qtdemo -platform eglfs
>>>> QEglFSVivIntegration will set environment variable FB_MULTI_BUFFER=2
>>>> to enable double buffering and vsync.
>>>>  If this is not desired, you can override this via: export
>>>> QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1
>>>> Could not open egl display
>>>> Aborted
>>>>
>>>> Please let me know if have any idea about this error?
>>>
>>> Well have you made sure that your display was properly configured in
>>> the first place?
>>>
>>> Are you able to launch the Vivante demos?
>>> (needs BR2_PACKAGE_IMX_GPU_VIV_EXAMPLES)
>>> # cd /usr/share/examples/viv_samples/vdk/
>>> # ./tutorial7
>>>
>>> As long as the above isn't working, your Qt app won't work either.
>>
>> Nothing coming on the display except black screen and 4 penguins at
>> left top corner.
>>
>> # cd  /usr/share/examples/viv_samples/vdk/
>> # ./tutorial7
>> # ./tutorial7
>> #
>>
>> I've built GPU drivers as well, please see below kernel dmesg.
>>
>> dmesg:
>> ---------
>> [    1.002652] console [ttymxc3] enabled
>> [    1.016395] etnaviv gpu-subsystem: bound 134000.gpu (ops gpu_ops)
>> [    1.022660] etnaviv gpu-subsystem: bound 130000.gpu (ops gpu_ops)
>> [    1.028828] etnaviv gpu-subsystem: bound 2204000.gpu (ops gpu_ops)
>> [    1.035084] etnaviv-gpu 134000.gpu: model: GC320, revision: 5007
>> [    1.093333] etnaviv-gpu 130000.gpu: model: GC2000, revision: 5108
>> [    1.145203] etnaviv-gpu 2204000.gpu: model: GC355, revision: 1215
>> [    1.151378] etnaviv-gpu 2204000.gpu: Ignoring GPU with VG and FE2.0
>> [    1.159397] [drm] Initialized etnaviv 1.0.0 20151214 for
>> gpu-subsystem on minor 0
>> [    1.169491] imx-ipuv3 2400000.ipu: IPUv3H probed
>> [    1.176314] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> [    1.183005] [drm] No driver support for vblank timestamp query.
>> [    1.189462] imx-drm display-subsystem: bound imx-ipuv3-crtc.2 (ops
>> ipu_crtc_ops)
>> [    1.197123] imx-drm display-subsystem: bound imx-ipuv3-crtc.3 (ops
>> ipu_crtc_ops)
>> [    1.204800] imx-drm display-subsystem: bound imx-ipuv3-crtc.6 (ops
>> ipu_crtc_ops)
>> [    1.212462] imx-drm display-subsystem: bound imx-ipuv3-crtc.7 (ops
>> ipu_crtc_ops)
>> [    1.220491] imx-drm display-subsystem: bound 2000000.aips-bus:ldb
>> (ops imx_ldb_ops)
>> [    1.296817] Console: switching to colour frame buffer device 100x30
>> [    1.322829] imx-drm display-subsystem: fb0:  frame buffer device
>> [    1.330623] [drm] Initialized imx-drm 1.0.0 20120507 for
>
> I don't know which board you are trying to use but your defconfig is
> definitely wrong.
> The imx-drm driver is from the mainline kernel and can only work with
> Etnaviv, not the Vivante package.

Yes, I understand. Thanks for the help.

thanks!
-- 
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.