Enter key not working with pccon0 terminal

[mafkees1233]

Hello,

I like to have cmus playing music on console. The default vt220 terminal doesn't do colors, so I changed it to pccon0.
Now when I run cmus the enter key doesn't work. It does work on the v220 terminal.
Do any of you clever folks have any idea what that could be?

[jggimi]

This is a wild guess: the US 104 key PC Keyboard has two different Enter keys, which may be treated as unique functions. One of the Enter keys is on the number pad, and the other on the main key pad. Here's an example image I've pulled from Google, where you can see both Enter keys. One is above the right side Shift key, the other is along the right edge of the keyboard, at the bottom right of the number pad.




I happen to use an application at $DAYJOB which treats these two Enter keys differently.

[mafkees1233]

Thanks for your reply. It's a british keyboard with only one enter key. It's a laptop

[jggimi]

Yep, some of these keyboards may name them Return and Enter; others may have them both be named Enter. In the pckbd(4) driver source code, it names them Return and Enter. (/usr/src/sys/dev/pckbc/pckbd.c)

[J65nko]

Probably you could fix this in the /etc/termcap file. See termcap(5) for more info about the file/entry format. /etc/termcap is a text source file that needs to be compiled or converted into a binary hash database file.

Warning: termcap(5) refers to

FILES
     /usr/share/misc/termcap     File containing terminal descriptions.
     /usr/share/misc/termcap.db  Hash database file containing terminal
                                 descriptions (see cap_mkdb(1))

So I wonder why the file in /etc/ is not mentioned in the manual page. In my system the corresponding compiled hash database *db files are also missing.
There is also terminfo(5) that seem to apply for programs compiled with the curses program.

So what I described above, may have been true when the dinosaurs roamed the Unix world, and not be true in our times. In that case it just is a history lesson.
Maybe you could ask on the official misc mailing list.

EDIT: from the termcap file

:vt220-8bit|vt220-8|vt200-8bit|vt200-8|dec vt220/200 in 8-bit mode:\
        :am:bs:mi:ms:xn:xo:\
        :co#80:it#8:li#24:vt#3:\
        :AL=\233%dL:DC=\233%dP:DL=\233%dM:DO=\233%dB:IC=\233%d@:\
        :LE=\233%dD:RI=\233%dC:UP=\233%dA:ae=\E(B:al=\233L:\
        :as=\E(0:bl=^G:cd=\233J:ce=\233K:cl=\233H\233J:\
        :cm=\233%i%d;%dH:cr=^M:cs=\233%i%d;%dr:ct=\2333g:\

So here the ENTER key or cr is defined as CNTRL-M.
But:

 pccon+keys|OpenBSD PC keyboard keys:\
        :&2=^R:@7=\E[8~:@8=^M:F1=\E[23~:F2=\E[24~:F3=\E[25~:\
        :F4=\E[26~:F5=\E[28~:F6=\E[29~:F7=\E[31~:F8=\E[32~:\
        :F9=\E[33~:FA=\E[34~:FB=\E[35~:FC=\E[36~:FD=\E[37~:\
        :FE=\E[38~:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:\
        :k5=\E[15~:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:\
        :k;=\E[21~:kD=\E[3~:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:\
        :kd=\E[B:kh=\E[7~:kl=\E[D:kr=\E[C:ku=\E[A:
pccon+sgr+acs0|sgr and simple ASCII pseudographics for OpenBSD PC console:\
        :ac=+>,<-^.v0#`+a\:f\\h#i#j+k+l+m+n+o~p-q-r-s_t+u+v+w+x|y#z#{*|!}#~o:\
        :me=\E[m:\
        :..sa=\E[0%?%p1%p3%|%t;7%;%?%p6%t;1%;%?%p2%t;4%;m:
pccon+sgr+acs|sgr and default ASCII pseudographics for OpenBSD PC console:\
        :ac=++,,--..00``aaffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~:\
        :ae=\E(B:as=\E(0:eA=\E)0:me=\E[m\E(B:\
        :..sa=\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;m%?%p9%t\E(0%e\E(B%;$<2>:
# underline renders as color
pccon+colors|ANSI colors for OpenBSD PC console:\
        :ut:\
        :Co#8:NC#2:pa#64:\
        :AB=\E[4%dm:AF=\E[3%dm:op=\E[47;30m:
pccon+base|base capabilities for OpenBSD PC console:\
        :5i:NP:am:km:ms:nx:xn:xo:\
        :co#80:it#8:li#24:\
        :DC=\E[%dP:IC=\E[%d@:RA=\E[?7l:SA=\E[?7h:al=\E[L:bl=^G:\
        :cb=\E[1K:cd=\E[J:ce=\E[K:cl=\E[H\E[J:cm=\E[%i%d;%dH:\
        :cr=^M:ct=\E[3g:dc=\E[P:dl=\E[M:do=^J:ec=\E[%dX:ei=:ho=\E[H:\
        :im=:le=^H:md=\E[1m:mr=\E[7m:nd=\E[C:nw=\EE:rs=\Ec:\
        :se=\E[27m:sf=\ED:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
        :u6=\E[%i%d;%dR:u7=\E[6n:ue=\E[24m:up=\E[A:us=\E[4m:
pccon0-m|OpenBSD PC console without colors & with simple ASCII pseudographics:\
        :tc=pccon+sgr+acs0:tc=pccon+base:tc=pccon+keys:
pccon0|OpenBSD PC console with simple ASCII pseudographics:\
        :tc=pccon0-m:tc=pccon+colors:
pccon-m|OpenBSD PC console without colors:\
        :tc=pccon+base:tc=pccon+sgr+acs:tc=pccon+keys:
pccon|OpenBSD PC console:\
        :tc=pccon-m:tc=pccon+colors:

The tc means to include or import the description of the entry. If you trace back these tc= entries for pccon you see that pc+base is included. And that entry also defines cr CNTRL-M (ASCII decimal code 13).
I am lost

[jggimi]

The source for /etc/termcap can be found in /usr/src/share/termtypes/termtypes.master.