Mixed DPI support not working in 1.3 - text is too large, breaking layout #1628

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opened 2026-02-20 21:08:43 -05:00 by deekerman · 2 comments

deekerman commented

2026-02-20 21:08:43 -05:00

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Originally created by @lukefor on GitHub (Sep 11, 2019).

Since upgrading to 1.3.0, I noticed that Mumble is now reporting it is per-monitor DPI aware on Windows (fantastic!), but unfortunately this is the result:

I am using a dual monitor setup of 1080p (100% scale) and 5K (200% scale), where the 1080p monitor is the main monitor, and Mumble is on the 5K monitor.

For now I have worked around the issue by forcing Mumble to be DPI unaware, which returns it to the previous behaviour of pixelated text, but without the broken layout:

(^ view image full size to see issue on a standard dpi display)

Originally created by @lukefor on GitHub (Sep 11, 2019). Since upgrading to 1.3.0, I noticed that Mumble is now reporting it is per-monitor DPI aware on Windows (fantastic!), but unfortunately this is the result: ![screenshot](https://imgkk.com/i/tzt7.png) ![screenshot](https://imgkk.com/i/c9v_.png) I am using a dual monitor setup of 1080p (100% scale) and 5K (200% scale), where the 1080p monitor is the main monitor, and Mumble is on the 5K monitor. For now I have worked around the issue by forcing Mumble to be DPI unaware, which returns it to the previous behaviour of pixelated text, but without the broken layout: ![screenshot](https://imgkk.com/i/z-g-.png) (^ view image full size to see issue on a standard dpi display)

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2026-02-20 21:08:43 -05:00

deekerman commented

2026-02-20 21:08:45 -05:00

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@lukefor commented on GitHub (Sep 16, 2019):

Just to add, I've tried the new 1.3.0 update on a single high DPI monitor and it works perfectly - lovely scaling of text and icons, no broken layout. This issue appears to be exclusive to mixed DPI.

I guess you could workaround the issue by setting the awareness flag to 'system' rather than 'per-monitor'.

@lukefor commented on GitHub (Sep 16, 2019): Just to add, I've tried the new 1.3.0 update on a single high DPI monitor and it works perfectly - lovely scaling of text and icons, no broken layout. This issue appears to be exclusive to mixed DPI. I guess you could workaround the issue by setting the awareness flag to 'system' rather than 'per-monitor'.

deekerman commented

2026-02-20 21:08:45 -05:00

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@davidebeatrici commented on GitHub (Oct 11, 2019):

Qt bug: https://bugreports.qt.io/browse/QTBUG-48242

It was fixed in Qt 5.9, Mumble 1.3.0 was built with Qt 5.6.

@davidebeatrici commented on GitHub (Oct 11, 2019): Qt bug: https://bugreports.qt.io/browse/QTBUG-48242 It was fixed in Qt 5.9, Mumble 1.3.0 was built with Qt 5.6.