Bug 6935 – XFree86 on 24-bit, red/blue color planes swapped

Bug 6935 - XFree86 on 24-bit, red/blue color planes swapped

Summary:	XFree86 on 24-bit, red/blue color planes swapped

Status:	CLOSED WORKSFORME

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	XFree86 (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	i386 Linux

Priority	medium Severity medium
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Target Release:	---
Assigned To:	Preston Brown
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Reported:	1999-11-11 14:21 EST by kellyc
Modified:	2008-05-01 11:37 EDT (History)
CC List:	1 user (show)

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Doc Type:	Bug Fix
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Last Closed:	2000-02-04 10:34:56 EST
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Description kellyc 1999-11-11 14:21:21 EST

When our application is run on 24-bit with Red Hat 6.0 and XFree86 3.3.3.0
the red and blue color planes are swapped.  So if RGB is 255,0,0 you get
blue and if RGB is 0,0,255 you get red.

We don't get this behavior on UNIX or Windows. (Yes, I know one's an OS and
the other's a windowing system.)

Is this fixed in XFree86 3.3.5.0?

If it's not an XFree86 problem do you have any clue why this would happen?

Thanks!

Comment 1 Preston Brown 2000-01-18 15:13:59 EST

what video card are you using?  Chances are *very* likely this was fixed in 6.1.

Comment 2 Preston Brown 2000-02-04 10:34:59 EST

another solution would be don't use 24 bit mode, use "32 bit mode".  32 bit mode
is really 24 bit color as far as X is concerned, the data is just passed to the
card differently.

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