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From: John <john@building-m.simplistic-anti-spam-measure.net>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Unclutter on Official Touchscreen
Date: Tue, 26 Mar 2024 16:28:25 +0000
Organization: Building M
Message-ID: <86jzlp3ql2.fsf@building-m.net>
References: <R2idnZ7jI8UDNWP4nZ2dnZfqnPSdnZ2d@brightview.co.uk>
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The Incredible Bulk <please.nospam@me.com> writes:

> John wrote:
>> John <john@building-m.simplistic-anti-spam-measure.net> writes:
>> 
>>> The Incredible Bulk <please.nospam@me.com> writes:
>>>
>>>> John wrote:
>>>>> The Incredible Bulk <please.nospam@me.com> writes:
>>>>>
>>>>>> I am trying to use unclutter on bookworm with the official 7" touchscreen.
>>>>>>
>>>>>> However I get unclutter: could not open display
>>>>> How and when are you running the command?
>>>>> john
>>>>>
>>>>
>>>> At the mmoment just from the command line to test it out
>>>
>>>  From the command line... in a terminal emulator inside X? Because if
>>> you're ssh'd in you'll need to tell it which display to talk to, e.g.
>>> DISPLAY=0 unclutter
>>>
>>> john
>> This should, of course, be
>> DISPLAY=:0 unclutter
>> Mea culpa.
>> john
>> 
> The problem is I do not know what the value for display=: should be as
> 0 does not work (display not found) and all other numbers produce the
> same result

If you are running X, it's almost certainly :0

If you're not running X, what do you expect this X program to do when
you run it?

n.b. it *must* be DISPLAY=:0, not display=:0

john