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Thread: Minicom showing intermittent console output thro' /dev/ttyUSB0 port on opensuse 11.4

  1. #1
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    Question Minicom showing intermittent console output thro' /dev/ttyUSB0 port on opensuse 11.4

    Hi,

    I am using OpenSuse 11.4 distro on Intel's i7 processor and motherboard. It
    doesnot have onboard serial port, hence we are forced to use USB to Serial
    converter.

    I run minicom on command prompt. I am connecting through /dev/ttyUSB0 using PL203 driver.
    When i connect this to my hardware's console, and then execute 'find /' from my hardware's terminal,
    i get intermittent output thrown on minicom. As and when do keypress or move a mouse pointer it
    throws up a screenful of output before it stops. Again i have to keep moving
    either mouse/do key presses on keyboard to get the console output from my
    hardware. I am unable to get contineous console output of my hardware(logs).

    If using opensuse 11.3 its working fine, with the same i7 processor and same
    devices what i am using apparently. The fact is if i am using opensuse 11.4,
    i am not able to work, i mean that i am unable to get continuous console output of my logs when using minicom.

    so can anyone please tell like what i can do??
    i hardly believe that this is error (bug) on opensuse 11.4 using i7 prosessor

    On further experimatation, I have found that it doesnot look to be a minicom
    issue here. I tried using 'screen /dev/ttyUSB0 115200' and 'putty' (for linux)
    both are showing the same erratic behaviour mentioned above. My tty
    configuration as optained from stty is as below:

    root# stty -a -F /dev/ttyUSB0
    speed 115200 baud; rows 0; columns 0; line = 0;
    intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>;
    eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;
    werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 5;
    -parenb -parodd cs8 -hupcl -cstopb cread clocal -crtscts
    ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff
    -iuclc -ixany -imaxbel -iutf8
    -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0
    ff0
    -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop
    -echoprt
    -echoctl -echoke

    root# uname -a
    Linux srinirao 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100
    x86_64 x86_64 x86_64 GNU/Linux


    Has anyone came across this issue ? Is there anything i am missing out here
    with either the ttyUSB0 or Kernel driver or configurations related to ttyUSB0 ?
    Should i upgrade/downgrade my drivers ?.

    PLEASE HELP

  2. #2
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0 port on opensuse 11.4

    I can't help you (sorry) and hope others will tune in here.
    In the meantime, can you please next time when you show computer text here, use the CODE tags instead of making it red? Posting in Code Tags - A Guide
    Henk van Velden

  3. #3
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0 port on opensuse 11.4

    Quote Originally Posted by hcvv View Post
    I can't help you (sorry) and hope others will tune in here.
    In the meantime, can you please next time when you show computer text here, use the CODE tags instead of making it red? Posting in Code Tags - A Guide
    hmmmm thats ok. . and yes from next time i am gonna use code tags. .

  4. #4
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0port on opensuse 11.4

    On 2011-09-12 11:46, vrnb05 wrote:
    > so can anyone please tell like what i can do??
    > i hardly believe that this is error (bug) on opensuse 11.4 using i7
    > prosessor


    It looks like a bug to me. --> Bugzilla.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)

  5. #5
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0port on opensuse 11.4

    Then why aren't they working on that bug?? no reply from any one there.
    so i posted here. .


    Quote Originally Posted by robin_listas View Post
    On 2011-09-12 11:46, vrnb05 wrote:
    > so can anyone please tell like what i can do??
    > i hardly believe that this is error (bug) on opensuse 11.4 using i7
    > prosessor


    It looks like a bug to me. --> Bugzilla.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)

  6. #6
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0port on opensuse 11.4

    On 2011-09-19 15:56, vrnb05 wrote:
    >
    > Then why aren't they working on that bug?? no reply from any one there.
    > so i posted here. .


    You did not say that you had reported on bugzilla, nor the number. Yes,
    they take a very long time, not enough personnel, I guess.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)

  7. #7
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0port on opensuse 11.4

    ok. . Is there are any ideas you can give??? or should i have to install any drivers packages??


    Quote Originally Posted by robin_listas View Post
    On 2011-09-19 15:56, vrnb05 wrote:
    >
    > Then why aren't they working on that bug?? no reply from any one there.
    > so i posted here. .


    You did not say that you had reported on bugzilla, nor the number. Yes,
    they take a very long time, not enough personnel, I guess.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)

  8. #8
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0port on opensuse 11.4

    On 2011-09-20 14:26, vrnb05 wrote:
    >
    > ok. . Is there are any ideas you can give??? or should i have to install
    > any drivers packages??


    You still are not saying which is the bugzilla number, so I can't comment.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)

  9. #9
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    Default Re: Minicom showing intermittent console output thro' /dev/ttyUSB0port on opensuse 11.4

    Quote Originally Posted by robin_listas View Post


    You still are not saying which is the bugzilla number, so I can't comment.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 11.4 x86_64 "Celadon" at Telcontar)
    I have added a bug on https://bugzilla.novell.com

    Bug No 716887

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