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Thread: Epson 4530 printer

  1. #81

    Default Re: Epson 4530 printer

    I'm not going to reinstall. Everything else works fine. It would take me at least a week to find and replace the apps, and my other files would be lost.

    It's been suggested that I create a new user to test the scanner, but I'm worried that I may not be able to get back here, and I do NOT want to start over!

    I have cut and pasted the output of the suggested command, which worked this time. I don't know if it's any different from what I pasted before. It's not 50 lines, it's 450. It was run from the
    root console, since I don't know how to hi-lite and paste from the non-root console. The usual commands don't seem to work. An answer to this would be helpful. The paste file is called
    new session log and its number is 45435132.

    I must ask for your patience, folks. I'm new to Suse, and some of it's tricks are completely new to me, (Especially YAST and zypper.) even tho I've been using Linux for almost 20 years. I am
    not, btw, a programmer. And I do appreciate your assistance.

    --doug

  2. #82

    Default Re: Epson 4530 printer

    Tried to add new user "mac" but failed. Tried with simple console, got result as shown. Then tried with root console, got result as shown.

    Code:
    doug@linus-4qnb:~> useradd mac
    Absolute path to 'useradd' is '/usr/sbin/useradd', so running it may requirer superuser privileges (eg. root).
    bash: usr/sbin/useradd: No such file or directory
    spug@linux-4qnb:~> su
    Password:
    linux-46nb/home/doug # usr/sbin/useradd mac
    bash: usr/sbin/useradd: No such file or directory
    linux-4qnb:/home/doug # ^C   (tried to copy sequence but could not; writing it by hand)
    linux-4qnb:/home/doug # exit
    exit
    doug@linux-4qnb
    exit
    Maybe only Windows can scan. (Or maybe it can't either, but another computer and OS can.)

    --doug

  3. #83
    Join Date
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    Default Re: Epson 4530 printer

    Quote Originally Posted by dougmack View Post
    Code:
    spug@linux-4qnb:~> su
    Password:
    linux-46nb/home/doug # usr/sbin/useradd mac
    bash: usr/sbin/useradd: No such file or directory
    You are missing a "/" as in "/usr/sbin/useradd mac".

    It is looking under the current directory for "usr" and not finding it.
    openSUSE Leap 15.1; KDE Plasma 5;
    testing Leap 15.2Alpha

  4. #84

    Default Re: Epson 4530 printer

    I have created a new user called mac, and I can log in a mac, but it comes in as root, and checking Google, I do not see a way to get back to a non-root user. At any rate, I get a message
    Code:
    linux-4qnb:~ # su mac
    mac@linux-4qnb:/root> xsane
    No protocol specified
    No protocol specified
    
    (xsane:31000): Gtk-WARNING **: 19:52:04.851: cannot open display: :0
    mac@linux-4qnb:/root>
    Same output if I specify iscan.

    This is different from trying to run xsane from the screen icon as me, which says something like device not found.
    I'm not familiar with running as a different user, and I'm probably doing a bunch of things wrong. I haven't tried that since about 10 or more years ago. (I didn't have the problem of running
    as ordinary user and then su-ing to root as needed in the other system. Here if I type exit, the whole console display vanishes.)

    --doug

  5. #85
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    Default Re: Epson 4530 printer

    Quote Originally Posted by dougmack View Post
    I have created a new user called mac, and I can log in a mac, but it comes in as root, and checking Google, I do not see a way to get back to a non-root user. At any rate, I get a message
    Code:
    linux-4qnb:~ # su mac
    mac@linux-4qnb:/root> xsane
    No protocol specified
    No protocol specified
    
    (xsane:31000): Gtk-WARNING **: 19:52:04.851: cannot open display: :0
    mac@linux-4qnb:/root>
    Same output if I specify iscan.

    This is different from trying to run xsane from the screen icon as me, which says something like device not found.
    I'm not familiar with running as a different user, and I'm probably doing a bunch of things wrong. I haven't tried that since about 10 or more years ago. (I didn't have the problem of running
    as ordinary user and then su-ing to root as needed in the other system. Here if I type exit, the whole console display vanishes.)

    --doug
    Hi
    To switch to a user you must use the - eg;

    Code:
    su -
    Password: 
    :~ # whoami
    root
    su - username
    :~> whoami
    username
    Or just logout and login as the usename you want...
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SUSE SLE, openSUSE Leap/Tumbleweed (x86_64) | GNOME DE
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!

  6. #86

    Default Re: Epson 4530 printer

    Quote Originally Posted by deano_ferrari View Post
    As I mentioned before, you could try creating a new user account (via YaST), and then login in to the desktop as the newly created user. See if the problem is still evident.
    I did that (see section 9) and got a different error, but still no scanner. I'm looking for the paid scanner program that someone here mentioned, and I will try that.

    --doug

  7. #87

    Default Re: Epson 4530 printer

    Quote Originally Posted by malcolmlewis View Post
    Hi
    To switch to a user you must use the - eg;

    Code:
    su -
    Password: 
    :~ # whoami
    root
    su - username
    :~> whoami
    username
    Or just logout and login as the usename you want...
    See the error message "no protocol specified"--I don't know what that means. What must I do to specify a "protocol" and why? I never saw that on a system on which xsane works.
    --doug

  8. #88

    Default Re: Epson 4530 printer

    Went to Epson site and looked up this scanner and Linux. It says, and I quote:

    On Linux, you need to set up libusb device protections.
    I don't know what this means, of how to do it. Please advise! Thanx, Doug

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