| Summary: | dithering detected incorrectly | ||||||
|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Avi Kivity <avi.kivity> | ||||
| Component: | Driver/nouveau | Assignee: | Nouveau Project <nouveau> | ||||
| Status: | RESOLVED MOVED | QA Contact: | Xorg Project Team <xorg-team> | ||||
| Severity: | minor | ||||||
| Priority: | medium | ||||||
| Version: | unspecified | ||||||
| Hardware: | x86-64 (AMD64) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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Please grab a copy of envytools (github.com/envytools/envytools) and also provide the output of nvapeek 101000 00101000: 9f5cb098 Well, unless I'm misreading the bios (entirely possible), the FP data pointed to by the offset in BIT table 'L' suggests that it's not a 8bpc screen. bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; lvdsmanufacturerpointer = 56df and 0x56e3 == 0. So nouveau is correctly turning on dithering based on the information available to it. However perhaps that information isn't trustworthy for fermi+. Or perhaps there's another bit somewhere. -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/221. |
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Created attachment 118681 [details] vbios.rom 4.1.8-200.fc22.x86_64 01:00.0 VGA compatible controller: NVIDIA Corporation GF108GLM [NVS 5200M] (rev a1) This is a laptop; the laptop screen displays some colors as flickering vertically striped patterns, which IRC/imirkin diagnosed as unneeded dithering. Disabling dithering with xrandr fixes the issue.