luis@postgres.Berkeley.EDU (Luis Miguel) (05/31/90)
I have an HP 900-350 workstation, and have been playing with
some color programs in the last couple of days. The monitor
(HP 98782A) has 8 planes (as reported by xdpyinfo), but
for some reason its colormap only has 64 colors (equivalent to 6 planes).
I need the 256 of an 8 plane display for the pictures I have to look good.
Is there a way to change the default colormap size for
the server?
Thanks,
/Luis
PS: I am running X11R3 under Mt. Xinu's 4.3 BSD
Luis Miguel. Computer Science Division, UC Berkeley.
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at&t: (415) 642-9585stroyan@hpfcso.HP.COM (Mike Stroyan) (06/01/90)
> I have an HP 900-350 workstation, and have been playing with > some color programs in the last couple of days. The monitor > (HP 98782A) has 8 planes (as reported by xdpyinfo), but > for some reason its colormap only has 64 colors (equivalent to 6 planes). > I need the 256 of an 8 plane display for the pictures I have to look good. The monitor has no planes. The display interface board has planes. The 98782A monitor can be used with several different display board. You need to look at the other end of the RGB cable to find the meaningful model number. I suspect that you have a 98547 display card with 6 planes. Very early X11 servers for this display reported 8 planes and 64 colormap entries. More recent servers report 6 planes. > Is there a way to change the default colormap size for > the server? No, you will need a different display board. Mike Stroyan, stroyan@hpfcla.hp.com
jbb@hpcvlx.cv.hp.com (Jim B. Byers) (06/02/90)
I suspect that xdpyinfo is reporting back incorrect information. :-( If memory
servers me correctly the MIT R3 HP server had this problem. Are you using
this or an HP released server? The monitor you mentioned is a 19" 1024x768
color montior (HP 98782A). Assuming you do not have an SRX 3D graphics card,
you either have a 98547A 6 plane graphics board or a 98549A High Res,
High Performance 6 plane Color graphics board.
As you probably know this translates into 64 colors unless you wish to produce
clients that ask the window manager for their own colormaps. This is generally
bad form as it causes the rest of the windows to look *very ugly* when these
clients have the focus, but may be useful when you just have to have those
colors.
All current HP 1280x1024 displays have at least 8 planes.
Hope that this helps.
Jim Byers
Hewlett Packard
Interface Technology Operation Marketing/Lab Team
(The X11/Motif/Vue folks in Corvallis)
#include <std.disclaimer>
Utsukushi ya shoji-no ana-no Ama-no-gawa
Issa (1762-1826)
A lovely thing to see:
through the paper window's hole,
the Galaxychan@hpfcmgw.HP.COM (Chan Benson) (06/05/90)
> All current HP 1280x1024 displays have at least 8 planes.
Excepting the 98548(card)/98788(monitor) combo which is single plane
grayscale. <further info deleted by notes police>
-- Chan