[Openicc] Profile installation and association for Linux/Unix/X11

Jon A. Cruz jon at joncruz.org
Sun Apr 20 19:05:26 PDT 2008

On Apr 20, 2008, at 6:32 PM, Hal V. Engel wrote:

> I am not sure I understand the concern here.  Wouldn't a user  
> logged into the
> same machine through more than one X11 session want to use the same  
> color
> configuration for all sessions?  After all the color configuration is
> specific to the hardware not the user or the X11 session.


>> /etc/X11/... *might* be appropriate. The settings are on a per-X11
>> session basis after all.
> Again I am not sure I understand this.  Why would different X11  
> sessions
> need/use different profiles or other color related settings for the  
> same
> monitor, printer, scanner or camera?

Ahh, the main point is that those would be *different* monitors, and  
perhaps different printers and scanners also. Same computer, same  
home directory, but different hardware.

In some environments it's common to have a shared user directory  
somewhere on the network. Then as one sits down at different  
workstations, a log in occurs and the home dir gets mapped in at the  
computer the user is physically at. So one could be logged in to  
computers in different rooms, but using the same home dir at the same  

Or one can use XDMCP to run X11 at one system, but log into a  
different system elsewhere on the network. Picture running a thin X11  
client on a laptop and on PC, both connecting to the same rack- 
mounted 1u headless box back in the server room.

Then there is always remote X11 access. I might be logged in to the  
console of the Ubuntu desktop back out in the office. Then since I  
want to do something, but don't want to get up from my laptop or  
carry it out there, I'll just do ssh -XYC to that box. So I have one  
X11 session running that is displaying on the monitor out there and  
is running on the Intel graphics card in the desktop computer, but  
then simultaneously have a second login from this laptop, with  
program output appearing on the laptop's screen and displayed via its  
internal ATI video card.

Of course in the general remote X11 scenario the second X11 session  
was already launched and running, and should not need to look for  
profiles to load into the running display on the laptop. However, the  
first one definitely has that issue/potential confusion.
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