topic Re: Qt examples: DRIUnlock called when not locked in i.MX Processors

Qt examples: DRIUnlock called when not locked

reyhanehyazdani — Mon, 15 Apr 2019 07:39:48 GMT

Hello every one,

I am using imx6d board with the X11 image, Linux 4.9.88_2.0.0_ga

When I run any example of the Qt(/usr/share/qt/examples/), then in the log file of the Xorg, I face this error:

(EE) VIVANTE(0): DRIUnlock called when not locked.

On the screen, Qt-app works correctly and only in the log file, the error exists.

Do you have any idea what is the reason of this error and how can be resolved?

Best regards,

Reyhaneh

Re: Qt examples: DRIUnlock called when not locked

igorpadykov — Tue, 16 Apr 2019 00:24:40 GMT

Hi Reyhaneh

nxp provides limited qt examples in Linux 4.9.88_2.0.0 Demo Image

Linux Binary Demo Files - i.MX 6QuadPlus, i.MX 6Quad, i.MX 6DualPlus, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo, i.MX 6SoloX

Description can be found in sect.8.4 Qt 5 attached Linux Guide.

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: Qt examples: DRIUnlock called when not locked

reyhanehyazdani — Tue, 16 Apr 2019 08:04:40 GMT

Hi Igor,

This bug is available with NXP-Qt-Examples too.

You can test it:

- use X11

- Linux 4.9.88_2.0.0

- Galcore version 6.2.4.150331

- Yocto-Rocko

-Qt example: /usr/share/cinematicexperience-1.0/Qt5_CinematicExperience

- Run above Qt example, do Ctrl+C, and check Xorg log(/var/log/Xorg.0.log). By normal closing, there is no error. It is only when using ctrl+c.

Then you will find the Vivante error:

(EE) VIVANTE(0): DRIUnlock called when not locked.

The attachment you have sent me is the XWayland image, however I need to use X11 image.

Best,

Reyhaneh

Re: Qt examples: DRIUnlock called when not locked

igorpadykov — Tue, 16 Apr 2019 10:37:08 GMT

Hi Reyhaneh

seems "Ctrl+C" is well known problem as reported on many forums, so this may be posted on Qt mail list

CTRL+ shortcuts don't work on OSX with Qt 5.4 · Issue #203 · Swordfish90/cool-retro-term · GitHub

Qt5 Ctrl-C not working when (sub-)QProcess is running | Qt Forum

Best regards
igor