Bug 483334 - Different font rendering after plasma 6 update
Summary: Different font rendering after plasma 6 update
Status: REOPENED
Alias: None
Product: kde
Classification: I don't know
Component: general (show other bugs)
Version: unspecified
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: a.key
URL:
Keywords: qt6
Depends on:
Blocks:
 
Reported: 2024-03-12 12:40 UTC by i3ym
Modified: 2024-04-24 14:09 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Comparison between Dolphin terminal launched before the update to plasma 6 and Konsole launched after the update (255.39 KB, image/png)
2024-03-12 12:40 UTC, i3ym
Details
Comparison between old Konsole screenshot and its recreation in Konsole in Plasma 6 (44.63 KB, image/png)
2024-03-12 12:41 UTC, i3ym
Details
blurry Monospace konsole font rendering (795.04 KB, image/png)
2024-04-24 13:47 UTC, a.key
Details
Bolded items in lists have too wide spacing (78.91 KB, image/png)
2024-04-24 13:50 UTC, a.key
Details
kontact email folder list with bolded items too spaced out (121.14 KB, image/png)
2024-04-24 14:01 UTC, a.key
Details
message list in kontact shows new emails (bolded) with too wide spacing (189.13 KB, image/png)
2024-04-24 14:03 UTC, a.key
Details

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Description i3ym 2024-03-12 12:40:39 UTC
Created attachment 167026 [details]
Comparison between Dolphin terminal launched before the update to plasma 6 and Konsole launched after the update

SUMMARY
After updating to Plasma 6, font rendering in Konsole changed, letters became more spaced out and render slightly differently (example: dot on the letter i is thinner)


SOFTWARE/OS VERSIONS
EndeavourOS, X11, kernel 6.7.9-arch1-1
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Comment 1 i3ym 2024-03-12 12:41:13 UTC
Created attachment 167027 [details]
Comparison between old Konsole screenshot and its recreation in Konsole in Plasma 6
Comment 2 i3ym 2024-03-12 12:43:09 UTC
Font: Ubuntu Mono, Regular, 13px, from Arch linux package extra/ttf-ubuntu-font-family
Comment 3 Nick 2024-03-19 08:37:35 UTC
Hi - would it be possible to explain in more detail why you would like this investigated as a bug? Since there have been a lot of changes in this upgrade, narrowing this down might take significant effort. Practically then, can you advise what the impact of this might be so that we can determine whether this does indeed need further investigation?

Thanks
Nick
Comment 4 i3ym 2024-03-19 09:15:34 UTC
(In reply to Nick from comment #3)
> Hi - would it be possible to explain in more detail why you would like this
> investigated as a bug? Since there have been a lot of changes in this
> upgrade, narrowing this down might take significant effort. Practically
> then, can you advise what the impact of this might be so that we can
> determine whether this does indeed need further investigation?
> 
> Thanks
> Nick

I have no idea whether this change was intentional or not, but to me it doesn't seem like it is, so I just reported it as a bug.
Especially because I've also compared Konsole to Kate (in which I haven't noticed any font changes since plasma 6 update) and the fonts there do look different - Konsole has more spaced out letters, leading me to believe that this is a bug.

As for the impact - not that big I guess, it is purely visual and doesn't seem to break anything. Still an issue though.
Comment 5 Nick 2024-03-19 17:29:18 UTC
OK - I've done some similar tests between my Kubuntu system running Konsole 23.08.1 and my Neon system on Konsole 24.02. Both on Wayland. Both are set with the default Hack 10pt font. I can barely tell any difference, if any, between the two. As such I'm really inclined to close this one down as I really cannot see much merit in investigating further.

Could you please take another think and let us know if you believe there is a genuine benefit to a dev looking at this (especially right now when things are busy just after the KDE Megarelease!)? If not would you mind closing this and if it does become a problem in future please re-open it with some background as to the impact and reasons for further investigation?

Thanks, Nick.
Comment 6 i3ym 2024-03-19 17:55:28 UTC
In that case, I'll close it for now. Not exactly breaking things, just inconvenient.
Comment 7 a.key 2024-04-24 13:47:37 UTC
Created attachment 168866 [details]
blurry Monospace konsole font rendering

Blurry Monospace font rendering in plasma 6.0.3 (konsole)
Comment 8 a.key 2024-04-24 13:50:56 UTC
Created attachment 168868 [details]
Bolded items in lists have too wide spacing

There's also a weird widened spacing in bolded items in lists. Here a list of konsole profiles with the default one bolded which is too thick.
Comment 9 a.key 2024-04-24 14:01:19 UTC
Created attachment 168869 [details]
kontact email folder list with bolded items too spaced out

Here in kontact the email folder list with items bolded show that the spacing is too wide too.
Comment 10 a.key 2024-04-24 14:03:49 UTC
Created attachment 168870 [details]
message list in kontact shows new emails (bolded) with too wide spacing

Finally the worst of all... I have my new/unread emails set as bold (very old school/thunderbird behaviour) in this example shows my spam emails and the ones that are set as unread are shown here as too spaced out. This was not like it in the last plasma 5.x.x. It looked a lot better.
Comment 11 a.key 2024-04-24 14:09:02 UTC
It's actually hard to say what it is... it seems like it's too spaced out but also that bold is kind of "too bold".