Known Issue: Qt6 and white text in progressbar

[sledgehammer999]

qBittorrent & operating system versions

qBittorrent 4.4.0 x64 (qt6)
Windows 10 (in VM)
Qt 6.2.2

What is the problem?

The text on the progress bar in the transfer list in painted white or maybe transparent (white background). When the progressbar fills (the blue stuff) and reaches the text nothing appears as text. Before it fills, even though it is white/transparent you can see an outline of the text.

This issue doesn't appear with Qt5 on the same VM.

I lack the time to further debug this.

Steps to reproduce

No response

Additional context

No response

Log(s) & preferences file(s)

No response

[The5kull]

On the same version in W11 I am not experiecing this. VM related maybe?

[gciaooo]

Having the same problem on native Windows 11.

[escape0707]

ArchLinux

[sledgehammer999]

@gciaooo is it Qt6?
@escape0707 is it Qt6?

[gciaooo]

Yes, it is.

[escape0707]

Yes.

[lvzhenbo]

Having the same problem on win10

[sledgehammer999]

If you don't need the better HiDPI compatibility you're better off using the Qt5 version.

[Kolcha]

Qt 6 patch for this issue #14379 (comment)

[sledgehammer999]

QTBUG-101474

[barhom]

QTBUG-101474

Seems like this one is resolved now

[xavier2k6]

QTBUG-101474

Seems like this one is resolved now

Just to chime in here with some points to note:

1. Users shouldn't expect this to be fixed in the next version of qBittorrent 4.4.2 as this will more than likely still use Qt 6.2.x
2. Qt 6.3.0 (which will contain this fix) won't be generally available until mid-April. (It's still currently in "beta" over at Qt)

[Kolcha]

commit was merged to 6.2 branch, and fix version 6.2.5 was also added to bugreport ticket (I receive any status changes as ticket author). but 6.2.4 is not released yet.
so it is hard to say what will happen first: 6.2.5 with required patch included or 6.3.0

[escape0707]

commit was merged to 6.2 branch

https://code.qt.io/cgit/qt/qtbase.git/commit/?h=6.2&id=11db653adcf0d1ef980d9a87070e03184be0e65e

[xavier2k6]

and fix version 6.2.5 was also added to bugreport ticket

So it seems, it wasn't there when I looked previously.

6.2.4 was actually meant to be the last update/release in the 6.2 Series but the security vulnerabilities that were found obviously changed that hence a 6.2.5 release in the future.

6.2.4 has been released & it doesn't contain the fix (obviously).

Reference:
https://download.qt.io/official_releases/qt/6.2/
https://code.qt.io/cgit/qt/qtreleasenotes.git/about/qt/6.2.4/release-note.md

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[xavier2k6]

@An0n666 I suspect most users are generally not affected by this (due to default scaling settings - 100%)....to reproduce this with Qt6 builds, change scale & layout settings on windows to 125%+

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Qt 6.3.0 RC is to be released by the end of this week, so will be able to test/confirm if fixed after that.

[xavier2k6]

what will happen first: 6.2.5 with required patch

Just looked at QTBUG-101474 again & we WILL have to wait for official release of Qt 6.3.0 as Qt 6.2.5 is for LTS Commercial users only.

[ghost]

Qt 6.2.5 is for LTS Commercial users only.
Where did you get that information? It says 6.2.5 as well as 6.2.5 LTS Commercial doesn't it?

[xavier2k6]

Where did you get that information?

From below:

Meeting minutes from Qt Release Team meeting 15.03.2022

[17:10:51] And Qt 6.2.4 will be the last public release from Qt 6.2 series as earlier communicated

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It says 6.2.5 as well as 6.2.5 LTS Commercial doesn't it?

I'm not saying that 6.2.5 won't be released to open source community at some stage (just like 5.15.3 recently was) but for "now anyway" it seems it won't, unless below quote comes to fruition.

6.2.4 was actually meant to be the last update/release in the 6.2 Series but the security vulnerabilities that were found obviously changed that hence a 6.2.5 release in the future.

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Also, I wouldn't pay much attention to what the hint/message text says.....see example below:

Its says Qt 5.15.10 & Qt 5.15.10 LTS Commercial but yet we know Qt 5.15.10 isn't available to open source community at this moment in time & will be a long time before it does.

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Another point to note, Qt's roadmap (subject to change!)

[xavier2k6]

@sledgehammer999 @An0n666 I can confirm now that this issue has been fixed (at least on windows) with a build based off Qt 6.3.0 Release Candidate.

[FredChauviere]

Problem is still present in latest stable 4.4.2 version for MacOS (QT 6.2.4)

[xavier2k6]

@FredChauviere Read my post just above yours!! #15941 (comment)

The fix hasn't been officially released by one of our dependencies Qt yet, when they do - it will be included in the next release version of qBittorrent.

[xavier2k6]

Qt 6.3.0 based qBittorrent 4.4.3 has been released which includes the upstream fix for this issue.