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Warning: Cannot allocate colormap entry for "skyblue"

JakobK
Advisor

Warning: Cannot allocate colormap entry for "skyblue"

Hello All,

on a HP C3600/ HPUX 11.11 are the "X settings" changed. I get some errors:
When i start the for example xterm, then
Warning: Cannot allocate colormap entry for "skyblue".
And when i call the graphdiag, then
Error : **** The following OpenGL test failed: TestOglPipeline
Error : Error limit has been exceeded.
I think, that are 2 independent errors. Or?
Have you an idea, which setting are changed ?

Thanks Kati
6 REPLIES
T G Manikandan
Honored Contributor

Re: Warning: Cannot allocate colormap entry for "skyblue"

Matti_Kurkela
Honored Contributor

Re: Warning: Cannot allocate colormap entry for "skyblue"

The "Warning: Cannot allocate colormap entry" message suggests that the X display mode has been changed to one that allows only a limited number of colours on the screen simultaneously.

The OpenGL failure may be related to the same change. I would expect OpenGL to require a large number of colours for shading and 3D modelling operations.

Use SAM to check your display and monitor settings.

MK
MK
Steven E. Protter
Exalted Contributor

Re: Warning: Cannot allocate colormap entry for "skyblue"

Shalom,

I have seen similar errors occur when the X configuration files are have incorrect ownership and permissions.

The messages are related.

I would check configuration of a working system and see what the differences are. The diff command is good for comparing two configuration files.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
JakobK
Advisor

Re: Warning: Cannot allocate colormap entry for "skyblue"

I have checked the Monitor / Display Configuration:
HP Visualize 1280x1024 75 HZ 10x20 VESA, Double-buffer
Default Visual: Overlay, Depth 8, Pseudo Color

max. Nr. of File Desc. =192
Graphics Shared Memory Size=0x580000
Shared Memory Transport Size= Disable
Cursor Scale Factor=1

I think that is okay.

I have the feeling, which in the background a process the whole color takes off.
But i can not find this process.

I have checked the ownership and permission of X configuration files and
are the same as a other working system.

Kati
Matti_Kurkela
Honored Contributor

Re: Warning: Cannot allocate colormap entry for "skyblue"

Depth 8 means you have only 2^8 = 256 colours available. That's pretty low for modern standards.

For good viewing of photo-like images and OpenGL work, you'll want Depth 24 (or 32) and True Color.

MK

MK
JakobK
Advisor

Re: Warning: Cannot allocate colormap entry for "skyblue"

Hello,

i have only 3 possibility:
Overlay , Depth 8, PseudoColor
Image , Depth 8, PseudoColor
and
Image , Depth 8, TrueColor.

When i change to Image , Depth 8, TrueColor
i have no postitive effects in my applications .

Modify Default Depth is greying out on sam.

Kati