Subject: bug#19175: 24.4; make-frame-on-display fails if emacs started with -nw

From: "Jan D." <[email-masked]>
Date: Mon, 23 Mar 2015 07:12:27 +0100

Hi.

Does

M-x make-frame-on-display RET
When prompted: :0 RET

work (note, just :0 not myhost:0)?

If it does, then it is likely your X server that has changed to not accept TCP/IP connections.

	Jan D.

> 25 nov 2014 kl. 05:28 skrev Mario Becroft <[email-masked]>:
> 
> 
> emacs -nw
> M-x make-frame-on-display RET
> When prompted: myhost:0 RET
> 
> Expected result:
> 
> A new X11 frame is created on the specified X11 display 'myhost:0'
> 
> Actual result:
> 
> In minibuffer, the following message appears:
> 
> Display myhost:0 can't be opened
> 
> Note:
> 
> DISPLAY=myhost:0 emacs
> 
> works fine, and make-frame-on-display works. It's only when starting
> emacs with -nw (or, more importantly, --daemon) that
> make-frame-on-display subsequently fails.
> 
> This is *not* a simple X authorization problem or anything like that.
> 
> The strace output from the point where emacs connects to the X server to
> when it closes the connection, without having read or written any data,
> follows (actual IP address of target X server host elided and replaced
> with 192.168.1.2):
> 
> ----
> socket(PF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_TCP) = 10
> setsockopt(10, SOL_TCP, TCP_NODELAY, [1], 4) = 0
> setsockopt(10, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
> connect(10, {sa_family=AF_INET, sin_port=htons(6000), sin_addr=inet_addr("192.168.1.2")}, 16) = ? ERESTARTSYS (To be restarted)
> --- SIGIO (I/O possible) @ 0 (0) ---
> rt_sigreturn(0x1d)                      = -1 EINTR (Interrupted system call)
> close(10)                               = 0
> ----
> 
> 
> 
> 
> In GNU Emacs 24.4.1 (x86_64-unknown-linux-gnu, X toolkit)
> of 2014-11-25 on ak2
> Configured using:
> `configure --without-toolkit-scroll-bars --with-x
> --with-x-toolkit=lucid --without-xft'
> 
> Important settings:
>  value of $LANG: en_US.UTF-8
>  locale-coding-system: utf-8-unix
> 
> Major mode: Lisp Interaction
> 
> Minor modes in effect:
>  rcirc-track-minor-mode: t
>  show-paren-mode: t
>  tooltip-mode: t
>  electric-indent-mode: t
>  mouse-wheel-mode: t
>  file-name-shadow-mode: t
>  global-font-lock-mode: t
>  font-lock-mode: t
>  auto-composition-mode: t
>  auto-encryption-mode: t
>  auto-compression-mode: t
>  line-number-mode: t
>  transient-mark-mode: t
> 
> Recent input:
> SPC L i n u x SPC d e s k t o p SPC s y s t e m , SPC 
> j u s t SPC s a y : RET D I S P L A Y = : 0 SPC e m 
> a c s SPC - n w RET M - x SPC m a k e - f r a m e - 
> o n - d i s p l a y RET W h e n SPC p r o m p t e d 
> SPC e n t e r : SPC : 0 RET I f SPC a SPC n e w SPC 
> f r a m e SPC a p p e a r s , SPC t h e SPC n i t SPC 
> i DEL DEL DEL DEL DEL DEL n SPC i t SPC i s SPC w o 
> r k i n g RET I f SPC t h e SPC t e x t SPC ' D i s 
> p l a y SPC : 0 SPC c a n ' t SPC b e SPC o p e n e 
> d ' SPC a p p e a r s SPC i n SPC t h e SPC m i n i 
> b u f f e r , SPC t h e n SPC t h e SPC b u g ESC b 
> ESC b y o u SPC h a v e SPC RET ESC [ > 0 ; 2 4 2 ; 
> 0 c ESC ] 1 1 ; r g b : f f f f / f f f f / f f f f 
> ESC \ ESC x r e p o TAB r t TAB RET
> 
> Recent messages:
> When done with this frame, type C-x 5 0
> x-initialize-window-system: Display 10.87.0.1:0 can't be opened
> x-initialize-window-system: Display 10.89.6.1:0 can't be opened [2 times]
> Connecting to chat.freenode.net...done
> Quit
> Making completion list...
> Rcirc-Track minor mode disabled
> Rcirc-Track minor mode enabled
> When done with this frame, type C-x 5 0
> Making completion list...
> 
> Load-path shadows:
> None found.
> 
> Features:
> (shadow sort mail-extr emacsbug message format-spec rfc822 mml mml-sec
> mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
> mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils help-mode
> easymenu disp-table network-stream auth-source eieio byte-opt bytecomp
> byte-compile cconv eieio-core gnus-util mm-util help-fns mail-prsvr
> password-cache starttls tls rcirc ring xterm server jabber-autoloads
> package epg-config escreen time-date paren cus-start cus-load tooltip
> electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd
> tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
> lisp-mode prog-mode register page menu-bar rfn-eshadow timer select
> scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham
> georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
> korean japanese hebrew greek romanian slovak czech european ethiopic
> indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
> abbrev minibuffer nadvice loaddefs button faces cus-face macroexp files
> text-properties overlay sha1 md5 base64 format env code-pages mule
> custom widget hashtable-print-readable backquote make-network-process
> gfilenotify dynamic-setting x-toolkit x multi-tty emacs)
> 
> Memory information:
> ((conses 16 144895 13629)
> (symbols 48 21822 0)
> (miscs 40 256 529)
> (strings 32 22112 4517)
> (string-bytes 1 584096)
> (vectors 16 11221)
> (vector-slots 8 410639 4818)
> (floats 8 80 297)
> (intervals 56 4036 233)
> (buffers 960 26)
> (heap 1024 23508 585))
> 
>