QT: debug window peers table column resize broken

[clemtaylor]

Unable to resize the columns for the debug window peers table with bitcoin-qt. When I try and drag a column it jumps around and then snaps back to the default width on release. The default column widths truncate the Node/Service and IP/Netmask columns.

This worked with my previous 0.16.0 build, but I think I updated the system Qt libraries.

bitcoin-qt: v0.16.99.0-89005ddad.
OS: Fedora 27
QT: qt5-5.9.4-2.fc27

[jonasschnelli]

Have you tried with Qt5.x?
Qt4.x support in Core Qt is slowly fading out...

[clemtaylor]

I built it against the default, which was qt5.

My configure command line was:
./configure --without-miniupnpc --without-qtdbus --without-qrencode --disable-bench --disable-ccache

[jonasschnelli]

@clemtaylor to identify the problem, can you test if you can reproduce this issue with the "official binaries"? https://bitcoincore.org/bin/

[clemtaylor]

I tested the 0.16.0 release binary (on testnet) and the 'Debug Window/Peers' display worked fine. The default column widths are sane and they resize without jumping around and do not snap back to the defaults.

However, the ldd output for the two different binaries are quite different. The release build does not link against any of the local libQt5*.so

I'm not sure if the problem is something to do with my local libraries, a recent change, or just my local configure options.

I updated to v0.16.99.0-6012f1caf-dirty and it still has the same problem.

[jonasschnelli]

@clemtaylor:
The "official binaries" are built "static" (means the Qt library is linked static, so you won't see a dyn link in ldd).

The problem you found is very likely due to a Qt bug, and if you self compile (which usually is with dynamic linking to your system wide Qt libraries), you will very likely use an older version of Qt then the "official" binaries are compiled with (Qt5.7).

[clemtaylor]

This issue was resolved when I switched to Fedora 28, which uses qt5.10.1