[PD] Problem with X11 (was: Compile error on Odroid-U3)

Tue Sep 2 14:13:25 CEST 2014

On Tue, Sep 2, 2014 at 2:51 PM, IOhannes m zmoelnig <zmoelnig at iem.at> wrote:

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> On 2014-08-31 17:34, Alexandros Drymonitis wrote:
> > I'm starting a new thread cause the problems I have with Odroid
> > are changing. Since I installed Pd with apt-get, at first, when I
> > was writing /usr/bin/pd, I was getting the following: priority 6
> > scheduling enabled. priority 8 scheduling enabled.
>
> whenever I have problems starting Pd, I start with disabling (default)
> options.
> the above indicates that Pd tries to run with rt-priviliges.
> run with "-nrt".
>
> > Fontconfig warning: ignoring UTF-8: not a valid region tag
> >
> > and Pd was hanging (this was mentioned in the previous thread).
> >
> > Now I get something else when I try to open Pd, which is this:
> [...]
> > xcb_connection_has_error() returned true
>
> since i have never seen this error before, i pasted it into my
> favourite search engine (you might want to do the same).
> the results i got seem to indicate that it is related to pulseaudio.
>
I am searching the errors, but get dozens of links and not sure which one
gives answers I need. I try different things...

>
> try starting Pd without audio:
> run with "-nosound".
>
Did with both -nrt and -nosound flags, but the same thing happens, only I
didn't see watchdog signaling Pd...

>
>
> > X11 connection rejected because of wrong authentication. X11
> > connection rejected because of wrong authentication. X11 connection
> > rejected because of wrong authentication. X11 connection rejected
> > because of wrong authentication. X11 connection rejected because of
> > wrong authentication.
>
> again i did a quick websearch, and found [2], which gives a nice
> checklist (though you can ignore the last item with "X11 client
> forwarding", as this is a) turned on explicitely with "-X" and b)
> seems to work anyhow e.g. on udoo)
>
Seems to be ok, following these directions. Though, since the initial
problem was space, I searched for the linux command to show partitions and
found $ sudo fdisk -l, which gives the following:
Disk /dev/mmcblk0: 7818 MB, 7818182656 bytes
4 heads, 16 sectors/track, 238592 cylinders, total 15269888 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c4046

        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            3072      266239      131584    6  FAT16
/dev/mmcblk0p2          266240     7407615     3570688   83  Linux

Disk /dev/mmcblk0rpmb: 0 MB, 524288 bytes
4 heads, 16 sectors/track, 16 cylinders, total 1024 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mmcblk0rpmb doesn't contain a valid partition table

Disk /dev/mmcblk0boot1: 4 MB, 4194304 bytes
4 heads, 16 sectors/track, 128 cylinders, total 8192 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mmcblk0boot1 doesn't contain a valid partition table

Disk /dev/mmcblk0boot0: 4 MB, 4194304 bytes
4 heads, 16 sectors/track, 128 cylinders, total 8192 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x1907e61d

Disk /dev/mmcblk0boot0 doesn't contain a valid partition table

any secret hidden there?

>
> > priority 6 scheduling enabled. priority 8 scheduling enabled. X11
> > connection rejected because of wrong authentication. X11 connection
> > rejected because of wrong authentication. application-specific
> > initialization failed: couldn't connect to display
> > "localhost:10.0"
>
> "localhost:10.0" is the DISPLAY-setting for X11-forwarding via ssh.
> this means: whenever you start "ssh -X ...", ssh will set the DISPLAY
> to this value, so that all X11-applications will be forwarded to your
> local machine.
>
> in any case, you should first get X11 forwarding to run properly
> (without Pd).
> use some simple application (like xclock or xeyes) to test whether it
> works,
>
Nope, none of them. Both give this error:
X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0

>
>
> fgdmasr
> IOhannes
>
> [2]
>
> http://www.cyberciti.biz/faq/x11-connection-rejected-because-of-wrong-authentication/
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