Displaying bash-3.2$ in terminal [NOT-SOLVED after last upgrade]

Question

hello, I have this same problem: http://bbs.archlinux.org/viewtopic.php?id=39192 but the "solution" posted there does not help me at all, I wish I could reuse the old thread but the 'SOLVED' keyword in the title may be confusing so I'm starting a new one.
the problem is that the prompt of my terminals (konsole, yakuake, xterm) is PS1='\s-\v\$ ' in all users; this started to happen after the last upgrade when the profile mechanism was changed somehow, I have no PS1 in my .bashrc and the PS1 in profile.bash is PS1='[\u@\h:\w]\n\$ '.
an interesting thing to know is that the virtual consoles (the ones accessed with Ctrl+Alt+F[1-6]) have the right prompt, and sourcing /etc/profile also fixes the problem on the others so I'm guessing that some other configuration file (possibly KDE or X related) is overwriting my prompt but I can't find it! fgrep -R 'PS1' /etc/profile* only shows the one I set not the wrong one.
/etc/profile and /etc/profile.bash are being loaded since the other declarations are present as well when running `set` only PS1 has changed it's value.
any help is appreciated.

Answer 1

still searching, first of all some tests I've made with the help of the guys at #bash
[11:33] <`Samus_> guys is it possible that starting X somehow erases my prompt?
[11:33] <`Samus_> I know that's is not purely bash and maybe OS-specific sorry
[11:33] <`Samus_> but it's geting me nuts
[11:33] <{xmb}> cant find it
[11:34] * Vadi ([email protected]) has joined #bash
[11:34] * Vadi ([email protected]) has left #bash
[11:34] <pgas> `Samus_: where do you define your prompt?
[11:34] * albech ([email protected]) has joined #bash
[11:35] * Agiofws has quit (Remote closed the connection)
[11:35] <`Samus_> is bieng defined in /etc/profile (/etc/profile.bash really but it-s sourced from there) there-s no PS1 in .bashrc and the rest of the variables are set
[11:35] <`Samus_> the most weird part is that in the virtual consoles (Ctrl+Alt+[1-6]) is ok
[11:36] <{xmb}> smells likke a code fault
[11:36] <`Samus_> but everything under X not
[11:36] <pgas> what if you do bash --login in xterm?
[11:36] * Oper_ ([email protected]) has joined #bash
[11:36] <`Samus_> let's see
[11:37] <`Samus_> bash --login shows it ok
[11:37] <`Samus_> in fact resourcing /etc/profile fixes it too
[11:38] <{xmb}> code fault something where
[11:38] <pgas> ok, so one of the script starting X sets PS!
[11:38] <pgas> you are on debian? have you checked /etc/bash.bashrc ?
[11:38] <`Samus_> that's what I think but I can't find it
[11:39] <`Samus_> no I'm on archlinux
[11:39] <pgas> what if you type just "bash" in a terminal?
[11:39] <`Samus_> and it might be some mistake because it started to happen after the last upgrade
[11:39] * floyd_n_milan ([email protected]) has joined #bash
[11:39] * hark ([email protected]) has joined #bash
[11:40] <`Samus_> 'bash' shows the wrong prompt, 'bash --login' the right one
[11:40] <pgas> in a terminal with the correct PS1 that is
[11:40] * osfulgore ([email protected]) has joined #bash
[11:40] <`Samus_> oh, in a terminal with the right prompt it stays ok
[11:40] * `Samus_ fells kinda lost...
[11:41] <pgas> ok, so the problem seems to be in one of the script used to start X
[11:42] * prince_jammys has quit ("Konversation terminated!")
[11:42] * Oper_ has quit ("Íå çíàåòå Äàíèëà Áåðåíöåâà? Îí ñêîðî âñòðåòèòñÿ âàì! Íå ñëûøàëè òàêîãî àâòîðà? Äîñòàíüòå ïðÿìî çàâòðà!!!")
[11:42] * Oper_ ([email protected]) has joined #bash
[11:42] <`Samus_> grepping 'PS1' in /etc/X11 didn't showed anything
[11:42] <`Samus_> some clue of what should I look for (or where)?
[11:43] <pgas> startx? ask #archlinux?
[11:43] <`Samus_> going...
I've also tried different WMs (KDE, xmonad) and they have this same problem but then, "fgrep 'PS1' /usr/bin/startx" and "fgrep -R 'PS1' /etc/X11/" showed nothing!! now what?
truly wtf...