Bug 164339 - Bottom of text clipped when using the DFKai-SB (Microsoft Kaiu/標楷體) font w/ Skia disabled on Windows
Summary: Bottom of text clipped when using the DFKai-SB (Microsoft Kaiu/標楷體) font w/ S...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
Version:
(earliest affected)
24.8.3.2 release
Hardware: x86-64 (AMD64) Windows (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Fonts
  Show dependency treegraph
 
Reported: 2024-12-16 03:58 UTC by xs535725
Modified: 2025-08-01 09:17 UTC (History)
5 users (show)

See Also:
Crash report or crash signature:


Attachments
Calc DFKai-SB screen shot (192.56 KB, image/jpeg)
2024-12-16 13:12 UTC, xs535725
Details
CalcにDFKai-SB requested sample doc (13.04 KB, application/vnd.oasis.opendocument.spreadsheet)
2024-12-16 13:15 UTC, xs535725
Details
Impress bug reproduction screenshot(skia disabled; 25.2.5.2) (153.93 KB, image/png)
2025-08-01 03:31 UTC, 林博仁 Buo-ren Lin
Details
Impress bug reproduction sample document (26.14 KB, application/vnd.oasis.opendocument.presentation)
2025-08-01 03:35 UTC, 林博仁 Buo-ren Lin
Details
Impress bug reproduction screenshot(control group)(skia enabled; 25.2.5.2) (174.81 KB, image/png)
2025-08-01 03:37 UTC, 林博仁 Buo-ren Lin
Details
Writer bug reproduction screenshot(skia disabled; 25.2.5.2) (130.82 KB, image/png)
2025-08-01 03:41 UTC, 林博仁 Buo-ren Lin
Details
Writer bug reproduction sample document (18.84 KB, application/vnd.oasis.opendocument.text)
2025-08-01 03:43 UTC, 林博仁 Buo-ren Lin
Details
Writer bug reproduction screenshot(control group)(skia enabled; 25.2.5.2) (146.11 KB, image/png)
2025-08-01 05:42 UTC, 林博仁 Buo-ren Lin
Details
Calc bug reproduction screenshot(skia disabled; 25.2.5.2) (137.46 KB, image/png)
2025-08-01 05:48 UTC, 林博仁 Buo-ren Lin
Details
Calc bug reproduction sample document (11.60 KB, application/vnd.oasis.opendocument.spreadsheet)
2025-08-01 05:52 UTC, 林博仁 Buo-ren Lin
Details
Calc bug reproduction screenshot(control group)(skia enabled; 25.2.5.2) (152.49 KB, image/png)
2025-08-01 05:57 UTC, 林博仁 Buo-ren Lin
Details

Note You need to log in before you can comment on or make changes to this bug.
Description xs535725 2024-12-16 03:58:49 UTC
Description:
さっきLibreOfficeをアップデートしました。Calcに入力してあったDFKai-SBフォント(台湾の漢字)の一番下の部分が消えてしまっています。

Steps to Reproduce:
1.CalcかWriterを開く
2.DFKai-SBフォントを選ぶ
3.我不是臺灣人と打ち込む

Actual Results:
「人」以外の文字は全て下部が消えているように見えます。

Expected Results:
DFKai-SBフォントの下部まできちんと表示されるとありがたいです。


Reproducible: Always


User Profile Reset: Yes

Additional Info:
DFKai-SBフォントの下部まできちんと表示されるとありがたいです。前のバージョンでは問題ありませんでした。
Comment 1 V Stuart Foote 2024-12-16 12:28:40 UTC
gloss:

Description:
I just updated LibreOffice. The bottom part of the DFKai-SB font (Taiwanese kanji) I entered in Calc has disappeared.

Steps to Reproduce:
1. Open Calc or Writer
2. Select DFKai-SB font
3. Type 我不是臺灣人

Actual Results:
All characters except "人" seem to have the bottom part missing.

Expected Results:
It would be great if the bottom of the DFKai-SB font could be displayed properly.

Reproducible: Always

User Profile Reset: Yes

Additional Info:
It would be great if the bottom of the DFKai-SB font could be displayed properly. There was no problem in the previous version.

=-=-=

Suggests a corrupt font metric with the DFKai-SB (Kaiu.ttf) (Microsoft "Feature on Demand" from the 'Chinese (Traditional) Supplemental Fonts'). 

But if it had been behaving in prior builds, some recent change to calculating optimal row heights could be cause. So would need bibisecting.

@Jonathan, are you set up with on Windows with a zh-TW locale, or have the font loaded for jp-JP locale to have a look?
Comment 2 V Stuart Foote 2024-12-16 12:35:33 UTC
For original poster:

Please copy and paste the Help -> About dialog details.

Also please attach a sample document with DFKai-SB font. A document with the cell content using that font is being clipped.
Comment 3 xs535725 2024-12-16 13:12:02 UTC
Created attachment 198138 [details]
Calc DFKai-SB screen shot
Comment 4 xs535725 2024-12-16 13:15:23 UTC
Created attachment 198139 [details]
CalcにDFKai-SB requested sample doc
Comment 5 V Stuart Foote 2024-12-16 15:28:25 UTC
Comment on attachment 198138 [details]
Calc DFKai-SB screen shot

screen shot of clipping issue with DFKai-SB used for Kanji cell content in a Calc sheet
Comment 6 V Stuart Foote 2024-12-16 15:29:56 UTC
Comment on attachment 198139 [details]
CalcにDFKai-SB requested sample doc

Build details from meta.xml

LibreOffice/24.8.3.2$Windows_X86_64 LibreOffice_project/48a6bac9e7e268aeb4c3483fcf825c94556d9f92
Comment 7 Jonathan Clark 2024-12-18 15:33:59 UTC
(In reply to V Stuart Foote from comment #1)
> @Jonathan, are you set up with on Windows with a zh-TW locale, or have the
> font loaded for jp-JP locale to have a look?

I was able to reproduce this bug, but only on Windows with Skia disabled.

Version: 24.8.3.2 (X86_64) / LibreOffice Community
Build ID: 48a6bac9e7e268aeb4c3483fcf825c94556d9f92
CPU threads: 32; OS: Windows 11 X86_64 (10.0 build 26100); UI render: default; VCL: win
Locale: ja-JP (en_US); UI: en-US
Calc: CL threaded

Version: 25.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: d38e0d615c73b55d3cf2a299cfb9290f0005000b
CPU threads: 32; OS: Windows 11 X86_64 (build 26100); UI render: default; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded
Comment 8 林博仁 Buo-ren Lin 2025-08-01 03:31:10 UTC
Created attachment 202109 [details]
Impress bug reproduction screenshot(skia disabled; 25.2.5.2)

I can verify that this bug is reproducible on Impress(Draw) as well.

So, it's reproducible on Writer/Calc/Impress(Draw).

This bug is NOT reproducible on the GNU/Linux platform, regardless of the status of hardware acceleration.
Comment 9 林博仁 Buo-ren Lin 2025-08-01 03:35:01 UTC
Created attachment 202110 [details]
Impress bug reproduction sample document
Comment 10 林博仁 Buo-ren Lin 2025-08-01 03:37:11 UTC
Created attachment 202111 [details]
Impress bug reproduction screenshot(control group)(skia enabled; 25.2.5.2)
Comment 11 林博仁 Buo-ren Lin 2025-08-01 03:41:54 UTC
Created attachment 202112 [details]
Writer bug reproduction screenshot(skia disabled; 25.2.5.2)
Comment 12 林博仁 Buo-ren Lin 2025-08-01 03:43:23 UTC
Created attachment 202113 [details]
Writer bug reproduction sample document
Comment 13 林博仁 Buo-ren Lin 2025-08-01 05:42:48 UTC
Created attachment 202114 [details]
Writer bug reproduction screenshot(control group)(skia enabled; 25.2.5.2)
Comment 14 林博仁 Buo-ren Lin 2025-08-01 05:48:47 UTC
Created attachment 202115 [details]
Calc bug reproduction screenshot(skia disabled; 25.2.5.2)
Comment 15 林博仁 Buo-ren Lin 2025-08-01 05:52:09 UTC
Created attachment 202116 [details]
Calc bug reproduction sample document
Comment 16 林博仁 Buo-ren Lin 2025-08-01 05:57:44 UTC
Created attachment 202117 [details]
Calc bug reproduction screenshot(control group)(skia enabled; 25.2.5.2)
Comment 17 Po-Yen Huang 2025-08-01 09:17:17 UTC
I can confirm this bug on 24.2 Alpha1 but not on 7.6.7.