[Interest] QtWidget examples not being run

Ramakanth Kesireddy rama.kesi at gmail.com
Sun Jul 19 18:27:35 CEST 2020


Hello Thiago,

The below mentioned patch along with setting environment
variable QT_QPA_PLATFORM=linuxfb:rotation=180TSLIB_PARAMETERS=rotate=180:mode=640x480
worked in Qt 5.6.3 version.

Thanks and Regards,
Ramakanth


On Fri, Jul 17, 2020 at 11:04 PM Ramakanth Kesireddy <rama.kesi at gmail.com>
wrote:

> Hello Thiago,
>
> Thanks for your feedback.
>
> As you pointed out different configure options and patches is the reason.
> Now with the single Qt build, it works fine on target.
>
> However, the rotation of linux framebuffer doesnot works in Qt 5.6 using export
> QT_QPA_PLATFORM=linuxfb:fb=/dev/fb0:rotation=180.
> Do we need to apply the patch
> https://patchwork.openembedded.org/patch/149258/
> <https://urldefense.com/v3/__https:/patchwork.openembedded.org/patch/149258/__;!!MvWE!SCeR31GgtkH_YaZK8cIOQQMn2hAzBjnpkDIf7VEdxmafN8AIBosz9jtpBMW98kbcgWsOtkY$> and
> then set the above environment variable?
>
> Best Regards,
> Ramakanth
>
>
> On Fri, Jul 10, 2020 at 2:18 AM Thiago Macieira <thiago.macieira at intel.com>
> wrote:
>
>> On Thursday, 9 July 2020 09:33:31 PDT Ramakanth Kesireddy wrote:
>> > Is it ok if we have Yocto Qt build on device and  Qt build cross
>> compiled
>> > in sysroot both being Qt 5.6.3 and the Qt program cross-compiled with
>> > sysroot build could run on device Yocto Qt build since the
>> configuration is
>> > same?
>>
>> Remove the "both" from your sentence. That implies more than one.
>>
>> Make sure you have exactly one build of Qt, built in the same step. I
>> suspect
>> your problem is that you have two builds of Qt, which may be of the same
>> version, but used different configure options and potentially patches.
>>
>> --
>> Thiago Macieira - thiago.macieira (AT) intel.com
>>   Software Architect - Intel System Software Products
>>
>>
>>
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>
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