[vbox-dev] Regression with Qt 5.13 - guest steals focus

Michael Thayer michael.thayer at oracle.com
Tue Jul 9 14:14:28 GMT 2019

Hello Larry,


Thanks to you and to Fabian!

06.07.19 18:52, Larry Finger wrote:
> On 7/5/19 7:28 PM, Larry Finger wrote:
>> On 7/5/19 10:13 AM, Michael Thayer wrote:
>>> Hello Larry,
>>> Just a semi-shot-in-the-dark, but are you in contact with Fabian, and if
>>> so, I wonder whether this patch would change anything.  It is against
>>> the development code, but should apply easily to 6.0.8.  The idea is
>>> that if Qt now gives us delayed information that we have lost the focus,
>>> ask the X server directly.
>> Michael,
>> Your patch does fix the issue against the unmodified Qt 5.13. I will
>> notify Fabian, and ask him if he would prefer this fix so that Qt 5.13
>> can be unmodified.
> Michael,
> I contacted Fabian. He is happy that VB will handle focus in a more
> robust fashion. He has already changed the Qt timer to 100 ms and pushed
> the updated code to qtbase upstream where it will be part of 5.13.1, but
> he thinks both solutions are better than either one alone. I have
> patched VB 6.0.8 locally and pushed it, and I will look for the change
> in 6.0.10.
> Thanks for your efforts in fixing this problem.
> Larry
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Michael Thayer | VirtualBox engineer
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