Bug 67068

Summary:	xf86-video-intel shows only 2 colours on VGA output on i915
Product:	xorg	Reporter:	mikey <abc.mikey>
Component:	Driver/intel	Assignee:	Chris Wilson <chris>
Status:	RESOLVED DUPLICATE	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	major
Priority:	medium
Version:	unspecified
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description mikey 2013-07-19 08:15:24 UTC

The xf86-video-intel (2.21.11-1) driver shows only 2 colours - red and black - on VGA output on i915 card for recent kernels (current 3.9.10-1). 

I imagine this is related to the introduction of limited colours for i915, but that's just a guess. Except that there only appear to be 2 colours red and black making navigating the screen impossible.

This is VGA going to a LCD Televion KDL-32S2010.

Comment 1 Chris Wilson 2013-07-19 08:20:58 UTC

commit ebf4517a0bb510e406795c169aa21b7cc615ed31 [2.21.12]
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Jul 3 22:44:46 2013 +0100

    sna: Always read back the gamma, even for a inactive CRTC
    
    Even if the CRTC is inactive, we still need to initialise the gamma
    tables.
    
    Reported-and-tested-by: Timo Kamph <timo@kamph.org>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66563
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

*** This bug has been marked as a duplicate of bug 66563 ***

Comment 2 mikey 2013-07-19 08:35:19 UTC

Thanks

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