| Summary: | 2.6.35rc+ kernel gives kwin lots of flickering | ||
|---|---|---|---|
| Product: | xorg | Reporter: | Öyvind Saether <oyvinds> |
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> |
| Status: | RESOLVED WORKSFORME | QA Contact: | Xorg Project Team <xorg-team> |
| Severity: | normal | ||
| Priority: | medium | ||
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
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Description
Öyvind Saether
2010-07-09 03:18:07 UTC
I have the same problem using the drm-radeon-testing branch of the kernel. Except i experience the problem with compiz and the task-switcher. And i had a similar problem with the XBMC. After disabling vsync, the flickering disappeared. ArchLinux with libdrm-git, mesa-git and xf86-video-ati-git with a HD4850. (In reply to comment #1) > I have the same problem using the drm-radeon-testing branch of the kernel. > Except i experience the problem with compiz and the task-switcher. > And i had a similar problem with the XBMC. After disabling vsync, the > flickering disappeared. See bug 28341 - there's no synchronization between the X and Mesa drivers to defer rendering to buffers involved in a pending vsynced buffer swap, so you sometimes see an incomplete next frame. However, AFAICT the kernel support for the broken functionality already went into 2.6.35-rc1, so I'm not sure this is the same bug... Øyvind, can you try bisecting the kernel for your problem? Works fine 2.6.35-git2 + current git drm+ati+mesa |
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