Black debug window #16266

issue hebasto opened this issue on June 21, 2019
  1. hebasto commented at 8:21 PM on June 21, 2019: member

    image

    Master (413e438ea9767710d4810c4400fd1242ca52cd1c) on Bionic + Qt 5.12.4.

    Steps to reproduce the issue:

    1. Window -> Information
    2. close debug window
    3. Window -> Information
  2. fanquake added the label GUI on Jun 21, 2019
  3. fanquake commented at 3:18 AM on June 22, 2019: member

    Do you think this is more likely a regression in Qt 5.12.4, or because you're running on bionic? I cannot reproduce with Qt 5.12.3 on macOS. Will setup a Bionic VM to try recreate.

  4. fanquake commented at 6:27 AM on June 22, 2019: member

    I setup a new Bionic VM (18.04.2 LTS), installed Qt 5.12.4 LTS using the online installer and was able to recreate. Note that resizing the debug window will show the correct contents.

    bionic_qt_5_12_4_debug

  5. hebasto commented at 6:35 AM on June 22, 2019: member

    Tested Qt 5.12.0. No bug. Yes, it seems a regression in Qt 5.12.4.

    Something like QTBUG-76509.

  6. hebasto commented at 6:38 AM on June 22, 2019: member

    @fanquake

    I setup a new Bionic VM (18.04.2 LTS), installed Qt 5.12.4 LTS using the online installer and was able to recreate.

    What ./configure arguments do you use in such setup?

  7. fanquake commented at 7:05 AM on June 22, 2019: member

    Something like QTBUG-76509.

    Yea that looks like what it could be.

    What ./configure arguments do you use in such setup?

    I just used PKG_CONFIG_PATH=/path/to/Qt/5.12.4/gcc_64/lib/pkgconfig ./configure --with-incompatible-bdb, and then used LD_PRELOAD at runtime to specify the .sos at runtime.

    I've read some of your related notes + discussion upstream in the Qt bug tracker about issues with the online installer. I'm going to write up some notes for myself in core-review.

  8. fanquake added the label Upstream on Jun 22, 2019
  9. hebasto commented at 7:20 AM on June 22, 2019: member

    Tested Qt 5.13.0. No bug.

  10. fanquake closed this on Feb 4, 2020

  11. DrahtBot locked this on Feb 15, 2022
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