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Strange test failure on cyclops-node13

 

Hi guys,

we have seen this particular failure several times in the past two weeks, and it has just happened again.

https://jenkins.qa.ubuntu.com/job/thumbnailer-devel-xenial-armhf-ci/20/consoleFull

We don’t see this on each build, just occasionally.

Test 8 fails with:

8: Test command: /usr/bin/xvfb-run "-a" "-s" "-screen 0 800x600x24" "./qml_test" "-import" "/tmp/buildd/thumbnailer-2.3+16.04.20151102.2bzr311pkg0xenial20/obj-arm-linux-gnueabihf/plugins"
8: Test timeout computed to be: 1500
8: QXcbConnection: Could not connect to display :109
8: Aborted
 8/22 Test  #8: qml .........................................***Failed    0.23 sec
QXcbConnection: Could not connect to display :109
Aborted

The test runs some qml that displays various images by writing to a canvas, and we test that the images appear as expected by testing various pixel values.

This test has worked without failing for several months, which makes me suspect that something may be wrong with the builder.

Could you have a look please?

Thanks,

Michi.

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