Disappearing IRQ 17 !?!
-
Here it is:
roger@roger-desktop:~$ sudo dmesg|grep tty
[sudo] password for roger:
[0.00] console [tty0] enabled
[1.457141] :04:01.0: ttyS4 at I/O 0xd000 (irq = 17) is a 16550A
[1.660953] tty tty33: hash matches
Sorry for the long delay, I've had several personal crises, as well as a
bad case of the crud (still not gone).
I tried setting to soft control in MiniCom, but still no response.
If you know the story about hardware control down, I'd really like to
know it too.
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Hi Roger,
try to change flow control to soft.
Upon the change both minicom and hylafax communicate with the modem
well.
Why hardware control is down is another story.
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I did that, and tried e-Fax GTK, got:
Socket running on port 9900
efax-0.9a: 20:54:11 opened /dev/ttyS4
AND
Sorry, Ubuntu has experienced an internal error... etc. (Is there a way to get
a log of that report - lots of info in there, but all Greek to me...?)
Still says "Sending Fax" until I click
i haven 't had time to look further into this; my apologies. still
haven't got time, but i know that an ubuntu installation requires group
'dialout' for users, and that the relevant character devices have that
too.
so try "sudo chown root:dialout /dev/ttyS4" ...
i hope this solves it.
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You re
If the system won't talk to ttyS4, is there a way to make it look like
and work like another port, say ttyS3 ?
BTW, this is a 64 bit system, if that affects anything.
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I'm still working on the different os boot, but I have noticed the following in
the meantime:
- ttyS4 shows it belongs to root, and is in the tty group. All the other ports
are in the dialout group. What does this mean? If that is a problem, how do I
fix it?
roger@roger-desktop:~$ ls -l /dev/
Here is the output from ScanModem:
Please especially look at <- points . I added comments / questions
after <--- ? .
-- System information
CPU=x86_64, Ubuntu , ALSA_version=1.0.24
Linux version 3.2.0-38-generic (buildd@allspice)
This is a modem driver available for Red Hat. Might it be of use in any
way in this situation? If so, how do I load an .rpm fiile?
http://www.usr.com/support/product-template.asp?prod=5610c
Red Hat Package Manager
USRobotics Corporation is pleased to provide the following Red Hat Package
Mana
This is a modem driver available for Red Hat. Might it be of use in any
way in this situation? If so, how do I load an .rpm fiile?
http://www.usr.com/support/product-template.asp?prod=5610c
Red Hat Package Manager
USRobotics Corporation is pleased to provide the following Red Hat Package
Mana
USB seems to work fine for me.
Looking forward to your results! As best I recall, my modem worked
fine in 10.04, in a different machine.
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Hi Roger,
if you saw "nobody cared about irq 16" after the same boot you made the above
printing, then you have problem with your USB controller too.
I am going to launch Ubuntu Live CD 10.04 with kernel 2.6.x to check IRQ
handling with those kernels.
Will share results here.
Regards
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Does this help?
lspci -vv
04:01.0 Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610
(rev 01) (prog-if 02 [16550])
Subsystem: 3Com Corp, Modem Division USR 56K Internal V92 FAX Modem
(Model 5610)
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParE
Does this help?
lspci -vv
04:01.0 Serial controller: 3Com Corp, Modem Division 56K FaxModem Model 5610
(rev 01) (prog-if 02 [16550])
Subsystem: 3Com Corp, Modem Division USR 56K Internal V92 FAX Modem
(Model 5610)
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParE
What you see in grub DEAFAULT command line at boot time is taken from
GRUB_CMDLINE_LINUX_DEFAULT
What you see at another grub menu item's command line (e.g recovery mode, or
another kernel version) is taken from GRUB_CMDLINE_LINUX.
What is there more is "pure linux meet", it is kernel image name
I did disable on board sound in the BIOS, no help.
"File info" is the change made in the /etc/default/grub file, whereas
the "boot line" is the edit made on the grub line during boot. The
question means - If I alter the /etc/default/grub file and process it
with "update-grub", it appears to me th
Do you have UEFI bios?
Can't follow "But since the boot line and the file info is different".
What is file info?
My modem is internal, PCI, has 16550A port built-in. It is ttyS4.
It doesn't matter what IRQ has my sound card uses, because IRQ sharing between
modem ans sound card is in your machi
Also, your modem is at ttyS4?
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Title:
Serial port ttyS4 doesn't work in 12.04
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About the sharing of IRQ 17, which is hardware (?), this machine also
runs in Windows 7 (completely separate hard drive, not seen in Linux),
and the modem works fine there. So would Ubuntu treat this differently
than Windows 7? I'll look in a few minutes about if this is in the
BIOS, don't think
Both you and me we do have new mobos. Yours is decent Intel piece, mine
decent AMD one. One clue more to look for problem source on operating
system's side.
Dont worry about system boot upon GRUB_CMDLINE_LINUX... change. You can
always play with kernel options at boot time and revert changes.
"8
OK, I understand that items altered in Grub at boot time are temporary.
But it is confusing to me why the suggested change to the file
(permanent) is different ( "pci=nocrs" and
"GRUB_CMDLINE_LINUX="8250.nr_uarts=5 pci=nocrs" ). Do they actually
have the same result? The "pci=nocrs" is without t
Roger,
GRUB_CMDLINE_LINUX_DEAFAULT attaches its options to default GRUB menu item only.
GRUB_CMDLINE_LINUX does it for each item (recovery modes too).
Since you can edit GRUB item line at while boot time, it is up to you which one
to choose.
But there is no reason to change any of those lines if
Considering Grub, what significance does "`GRUB_SERIAL_COMMAND'
A command to configure the serial port when using the serial
console. *Note serial::. Defaults to `serial'. " have with regards to
this situation?
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OK, I tried both lines. System would not boot with "pci=routeirq"
added. It would boot with "pci=nocrs", but again ttyS4 would not work.
The way your previous message reads is a bit confusing to me. By "(for
test if works)", do you mean to test if it will boot, or test if the
serial port works?
1. Reboot the machine
2. Press ESC upon GRUB menu appeared
3. Press "e" to enter edit mode of GRUB command launching kernel
4. find line with kernel options - it should contain one or more words "quiet",
"splash", "image"
6. fix cursor at the and of the line and enter "pci=routeirq" (w/o quotes)
7
Sounds like it might help, but can someone translate this into specific
directions to accomplish it?
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Title:
Serial port ttyS4 doesn't work in 12
Hi Roger,
finally solved similar problem with my server. The solution is to add kernel
option "PCI=routeirq" while booting (for test if works) and if it does to
GRUB_CMDLINE_LINUX in /etc/default/grub. Then run "update-grub".
My GRUB_CMDLINE_LINUX parameter is as follows:
GRUB_CMDLINE_LINUX="82
How do I help this problem reach "ASSIGNED" status?
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Title:
Serial port ttyS4 doesn't work in 12.04
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I was able to use sudo to save a new default file.
Minicom behaves exactly the same running from the live CD.
Here is the diags from Windoze 7 - it seems ok to me
01-07-2013 21:46:16.925 - File: C:\Windows\system32\tapisrv.dll, Version
6.1.7601
01-07-2013 21:46:16.925 - File: C:\Windows\syste
also check if you have an /etc/serial.conf or a modifief
/etc/init.d/setserial...
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Title:
Serial port ttyS4 doesn't work in 12.04
To manage noti
once again: are you sure nothing else is interfering on irq 17? check
with ' sudo lspci -vvvk|grep "IRQ 17" '
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Title:
Serial port ttyS4 doesn't w
from the setserial output: "Flags: spd_normal skip_test"; skip_test is
usually set when there is a fake 16550 present; try without this flag,
and see if the uart gets tested ok.
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one more thing: setserial describes a 16550A uart and your lshw output
describes a 16550. i have no idea whether that makes a difference, but
setserial allow setting a 16550.
from your lspci output: "Kernel driver in use: serial"; this is not a
module, correct?
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you could dump the modem's diagnostics from windows, and see if that
looks in order...
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Title:
Serial port ttyS4 doesn't work in 12.04
To manage
it's normal you need sudo to delete the configuration file in /etc.
if the following is literal: "cannot write to etc./minicom/minird.xxx", there
is an odd problem with the path ("etc./").
if it's not literal, you probably need to start minicom with sudo to make sure
it can write a file in /etc
BTW - I was able to save configuration files earlier, but after the
problems started.
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Title:
Serial port ttyS4 doesn't work in 12.04
To manage
" next trying to set Minicom to the same settings" - means same settings
as worked in Windoze.
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Title:
Serial port ttyS4 doesn't work in 12.04
T
I've now tried booting in Windoze, reset modem to default with hardware
flow control, back to Ubuntu, as well as next trying to set Minicom to
the same settings - all with no results - same as before.
I had to start Nautilus as sudo to delete the config files, and am still
unable to save a new one
i think this is crucial: "All I can say is that Minicom flashes
"Initializing modem" at first, and that the Minicom cursor usually
disappears when I'm typing the commands."
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try booting in windows, and resetting the modem to factory default with
hardware flow control (ATZ4); then boot in ubuntu,
try deleting any minicom configuration you have (user and system-wide), and
start minicom with "-s" (this way, minicom will not initialise the modem); then
try to match min
I just looked in the BIOS for any setting for IRQ or ports. I couldn't
find any.
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Title:
Serial port ttyS4 doesn't work in 12.04
To manage noti
I've tried the commmand mode by "+++" many times. I've tried reset in
Ubuntu, and also going to the Windoze side of this same machine where
the modem works fine, and resetting it, then going straight back to
Ubuntu and checking responses. All is still the same, no response, no
echo, no nothing i
also make sure the modem is in command modus, not in online modus. use
"+++" to switch...
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Title:
Serial port ttyS4 doesn't work in 12.04
To man
make sure the modem is set to display resulting codes (ATQ0)...
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Title:
Serial port ttyS4 doesn't work in 12.04
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ok, i missed the part where you stated it doesn't respond to a simple "AT"...
what if you try to put it back into a factory default mode
(http://www.usr.com/support/5610c/5610c-ug/tech-ref.html#f0) and match that in
minicom?
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are you sure nothing else interferes on irq 17? shouldn't matter, but a
lot of bios' allow setting irq's manually for all things serial and
parallel...
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=2 PME-
are you sure D0 is a normal status for this modem?
in minicom, do you get an "OK" back i
roger@roger-desktop:~$ echo '+++'>/dev/ttyS4
echo ATM2L3>/dev/ttyS4
echo ATD>/dev/ttyS4
(no result at all, no sound, totally blank line)
More modem info
http://www.usr.com/support/product-template.asp?prod=5610c
http://www.usr.com/support/5610c/5610c-ug/index.html >REFERENCE >select your
choice
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Serial port ttyS4 doesn't work in 12.04
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Roger, you said: "Just to make sure it's clearly understood, this modem
is basically an internal sportster with it's own serial card / port at
ttyS4. "
it is a device on a pci-lane. it should identify itself with a vendor
id, which should show up in dmesg or probe by lspci...
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Serial port ttyS4 doesn't work in 12.04
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what is your output of "sudo setserial -av /dev/ttyS4"? if setserial
doesn't exist, you can "sudo apt-get install setserial" it.
what is your output of "sudo stty -a -F /dev/ttyS4"?
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http
are you sure the modem is awake (as in, no software magic or no bios
needs to wake it up)?
that modem has firmware that can be updated; do you have the latest?
what happens if you send a regular hayes command to the modem, for example:
escape, speaker always on, volume up and a pause (to hear a
If the below doesn't help, please give me details on how to get the
information you want. It will be at least Monday before I can check it,
unless I hear from you in the next couple of hours.
The strace items were so long that it would be almost impossible to get
them in here, and the top portion
Roger, have you verified whether the device is actually allocated (Kees'
question)?
I'd love to see a trace of your problem, to compare it with mine.
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i have no clue. i hid my own comments, to keep this bug report clean. i
made a separate bug report (for program 'cu', Bug #1094278 ) and hope
the maintainer takes a look at it.
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How can I approach this problem? I need a working serial port.
With a fix or a work-around I can do?
Is there some kind of add-on I can use?
Is this in process to be fixed in the kernel or other segment?
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The problem is not in group membership, I am a member of dialout and
dip, with many logout/logins done afterward.
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Title:
Serial port ttyS4 doesn
The fact that the _devicenode_ exists does not necessarely mean that it
is allocated in the kernel. So /dev/ttyS4 may show up with ls but may
fail when you try to use it. Check CONFIG_SERIAL_8250_RUNTIME_UARTS in
your kernel config file. Most likely place is in /boot.
The user who is to use a seri
Thank you Kees! gives me something to bite into :)
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Serial port ttyS4 doesn't work in 12.04
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Finally 'strace -f -ff -o /tmp/APP is invaluable
with solving problems.
less /tmp/APP* will show you all system calls, loads , accesses and so.
Multiple APP* files may mean that the main application forked or multi-
threaded. While looking with 'less' search for 'open' calls and look
return sta
For one, check that your kernel support registration of more than 4
ports if you want to use /dev/ttyS4. The standard config is set to 4.
In the case that it tells you port is in use, check for a dangling lock
file. cu will create a lock in order to prevent double access. 'lsof'
may help you to fi
by the way, this might be related:
https://bugs.launchpad.net/qemu/+bug/1086745
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Title:
Serial port ttyS4 doesn't work in 12.04
To manage notifi
I think an important question at this point is : Is this problem only in
Ubuntu, or is it also in the main Linux kernel, or other distros?
Depending on this answer, help may be available to fix this problem
asap, other people besides just Ubuntu would be available.
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$ sudo cat /proc/tty/driver/serial
serinfo:1.0 driver revision:
0: uart:16550A port:03F8 irq:4 tx:0 rx:0 DSR
1: uart:16550A port:02F8 irq:3 tx:0 rx:0
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$ sudo uname -a
Linux iugo 3.7.0-4-generic #12~lp1085115v1 SMP Fri Nov 30 20:57:19 UTC 2012
i686 i686 i686 GNU/Linux
(i have this kernel because of Bug #1085115, but the standard ubuntu kernel
behaves exactly similar)
$ sudo dmesg|grep tty
[0.00] console [tty0] enabled
[0.663436] 00:
** Changed in: ubuntu
Status: New => Confirmed
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Serial port ttyS4 doesn't work in 12.04
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i have a very similar problem: trying to use a serial console (rs232c-
cable attached to serial port /dev/ttyS0) with 'cu'. this used to work
in older ubuntu-releases. this doesn't work anymore, and it is
apparently not related to permissions. on the exact same hardware, this
does work with with 'c
Also see
http://ubuntuforums.org/showthread.php?p=12345518
http://ubuntuforums.org/showthread.php?p=12391994#post12391994
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Title:
Serial port
This is baffling to me.
ALL the serial functions don't work, doesn't matter which app.
Can I list the installer for Ubuntu as a package?
If this isn't where to report Ubuntu OS bugs, PLEASE point me to the
correct place.
Google search "Ubuntu Bugs" gives :
Think you've found a bug?
Take a loo
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
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