[filelight] [Bug 504857] New: Filelight doesn't display diagram on NVIDIA GPU with automatic rendering backend
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bugzilla_noreply at kde.org
Tue May 27 12:50:46 BST 2025
https://bugs.kde.org/show_bug.cgi?id=504857
Bug ID: 504857
Summary: Filelight doesn't display diagram on NVIDIA GPU with
automatic rendering backend
Classification: Applications
Product: filelight
Version First 25.04.1
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: general
Assignee: unassigned-bugs at kde.org
Reporter: lolkek202k at gmail.com
CC: martin.sandsmark at kde.org
Target Milestone: ---
SUMMARY
Filelight fails to display diagram on systems with NVIDIA graphics cards when
using automatic desktop rendering backend selection. The issue doesn't occur on
AMD Radeon systems.
STEPS TO REPRODUCE
Install system with NVIDIA graphics card
Keep desktop rendering backend set to "Automatic" in system settings
Launch Filelight
Select any folder for analysis
OBSERVED RESULT
Disk usage diagram is not displayed in Filelight window. The interface loads
but the visualization is missing.
EXPECTED RESULT
Should display circular diagram with disk space usage visualization, as it
works on AMD Radeon or when forcing other renderers.
SOFTWARE/OS VERSIONS
Arch Linux, 6.14.7-arch2-1, KDE Plasma 6.3.5, Wayland
Qt 6.9.0
KDE Frameworks 6.14.0
Filelight Version: 25.04.1
GPU: NVIDIA RTX 3070 Ti (issue reproduces), driver 570.153.02
GPU: AMD Radeon RX 5700 XT (works correctly)
ADDITIONAL INFORMATION
Workarounds that solve the issue:
Launch with environment variable: QT_QUICK_BACKEND=software filelight
Change desktop rendering backend to Vulkan in system settings
Using AMD Radeon instead of NVIDIA (issue doesn't reproduce)
The problem is specific to NVIDIA GPUs and related to Qt Quick's automatic
renderer selection. When forcing software renderer or Vulkan, everything works
correctly.
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