Screen Resolutions show confusing numbers like 2112.0000 or 1848.0000

I installed the latest available version of piwik and the mst things wrk perfectly, but the screen resolutions are confusing me.

I see resolutions like 1680x1050 which i fully understand but there are others like
2112.0000 or
1848.0000 with i definitly not understand. Is this a bug or an unknown format?

I reported this 9 months ago: Broken screen resolution data

Hello

Please create a bug report on our tracker: Issues · matomo-org/piwik · GitHub with screenshots showing the issue. We can fix it for next release

matthieu, I found a lot of similar entries in demo.piwik.org for December but not January. Is it running on the same version?

See https://demo.piwik.org/index.php?module=API&method=Resolution.getResolution&format=CSV&idSite=7&period=month&date=2015-12-23&expanded=1&translateColumnNames=1&language=en

Done -> Piwik shows confusing screen resolutions like 2112.0000 or 1848.0000 instead of the common format 1680x1050 · Issue #9723 · matomo-org/piwik · GitHub