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Subject: Re: Latest Cygwin update and Emacs in Mintty To: cygwin AT cygwin DOT com References: <87wpciktid DOT fsf AT Rainer DOT invalid> <87o9tqs8c8 DOT fsf AT Rainer DOT invalid> <40991a4b-1e1c-4d03-f70f-8c77eb29bc7b AT cornell DOT edu> From: Ken Brown Message-ID: <840056d7-6365-97bb-96d0-cca35aaff925@cornell.edu> Date: Thu, 15 Jun 2017 09:35:01 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 In-Reply-To: <40991a4b-1e1c-4d03-f70f-8c77eb29bc7b@cornell.edu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Cornell-Gauge: Gauge=XXXXX X-PMX-CORNELL-AUTH-RESULTS: dkim-out=none; X-IsSubscribed: yes On 6/15/2017 6:47 AM, Ken Brown wrote: > On 6/14/2017 3:00 PM, Achim Gratz wrote: >> Achim Gratz writes: >>> After the latest Cygwin update I'm hitting an interesting problem with >>> emacs-nox running in a mintty: when Emacs starts, it decides that the >>> background color is gray instead of the usual white (for all but the >>> rightmost character in the status line, interestingly enough). I have >>> the normal mintty background set slightly off-white (to #F8F8F8) and >>> mintty reports itself as xterm-256color (the same happens in when TERM >>> is set to screen-256color). Emacs starts up with the correct background >>> color, draws the status bar and the menu bar and only then switches the >>> background to gray. The gray it choses is very slightly lighter than >>> the status bar (so lightly in fact that I can make out the difference on >>> only one of my three monitors). Emacs really thinks it is using a white >>> background, as evidenced by the fact that (set-background-color "white") >>> will produce exactly the same result. I get my usual background back >>> with (set-background-color "#F8F8F8"), but I have no idea where the >>> wrong setting for the named color "white" comes from. >>> >>> I'm just trying this at home remotely logging in from a konsole terminal >>> on my Linux box: Here the background chosen is slightly darker than the >>> status bar, the status bar seems to be #B8B8B8 and the background for >>> "white seems to be #B4B4B4. Curious and curiouser... >> >> Ken, did you have a chance to look into this? > > Sorry, I must have missed this when you first sent it. I'll take a look. I also see some strange behavior, but I can't reproduce what you're seeing. Here's what I tried: 1. I edited .minttyrc to set BackgroundColour=#F8F8F8. (ForegroundColour is 0,0,0, which I guess is the default.) 2. I ran 'emacs-nox -Q'. The background color didn't visibly change; it's still off-white. The mode line and menu line appear to be reversed (black background, off-white foreground, though I can't really be sure that the foreground is off-white rather than white). 3. I evaluated (set-background-color "white"). This caused the background to turn gray. The mode line and menu bar didn't visibly change. 4. I evaluated (set-background-color "#F8F8F8"). The background stayed gray. I need to investigate 3 and 4, but first I'd like to understand why you and I are seeing different things. One difference is the value of TERM. You say "mintty reports itself as xterm-256color". Do you mean it does this by default, or do you have something in your startup files that causes this? When I start mintty, I get the following: $ echo $TERM xterm Ken -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple