https://bugs.documentfoundation.org/show_bug.cgi?id=172270
Bug ID: 172270
Summary: Text scrolling causes visual corruption/tearing when
Skia+Vulkan hardware acceleration is active – "Force
Skia software rendering" option has no effect
Product: LibreOffice
Version: 26.2.3.2 release
Hardware: All
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
When scrolling up and down in a Writer document containing multiple pages of
text on Windows 11, the display shows significant visual tearing and graphical
corruption.
Steps to Reproduce:
1. Install LibreOffice 26.2 on Windows (HP Elitebook x360) with default
settings (Skia+Vulkan hardware acceleration enabled)
2. Open Writer with a document containing several pages of text
3. Scroll up and down through the document using mouse wheel or scrollbar
4. Observe visual artifacts during scrolling.
Actual Results:
Text display becomes corrupted/teared during scrolling
Visual glitches appear temporarily (as long as displayed page is visible)
Scrolling is not smooth
Expected Results:
Text should scroll smoothly without any visual corruption
Display should remain clear at all times
Reproducible: Always
User Profile Reset: Yes
Additional Info:
Workarounds attempted (did NOT help):
Enabling "Force Skia software rendering" in Options → LibreOffice → View →
Graphics Output
Disabling hardware acceleration via Safe Mode (Help → Restart in Safe Mode →
"Disable hardware acceleration")
Disabling hardware acceleration via environment variable
Resetting entire user profile
What does NOT work:
The option "Use Skia for all rendering" is greyed out/forced ON and cannot be
disabled in LibreOffice 26.2 (bad UX design choice!)
Software rendering fallback appears to be ignored – the system still uses
Vulkan hardware acceleration
System environment:
LibreOffice version: 26.2 (latest stable)
Operating system: Windows 11 Pro
Hardware: HP EliteBook x360 1040 G10
Graphics hardware: Intel Iris Xe Graphics (integrated)
Suggested Fix:
Allow disabling Skia entirely (re-enable the option to turn it off)
Fix the "Force Skia software rendering" option so it actually forces software
rendering and ignores Vulkan hardware acceleration
Implement a proper Vulkan fallback that doesn't cause rendering artifacts
during scrolling
Related:
Bug 140753 – "Image tearing while scrolling GDI/SKIA raster with high zoom
level" (2021)
Bug 141980 – "Writer 'smooth scroll' choppy with Skia/Vulkan Intel UHD
Graphics"
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