xsane doesn't works anymore

Hi, on my desktop pc using KDE I have an USB epson perfection scanner V300 photo, I used xsane (version 0.999) for years but now it doesn’t works anymore, the scanner is recognized but when I click on preview this error comes:
failed to start scanner: invalid argument
how can I have my scanner works again??

Post:

zypper se -si sane
zypper lr -d

PS:
Leap 15.1 is end of life, so maybe an update to Leap 15.2 will also help…

yes I know 15.1 is end of life, I will upgrade but for 15.2 do not works well on my laptop, cursor flickering and other problem that I would not to have on my desktop…
here is:

procuste@server3TW:~> zypper se -si saneLoading repository data...
Reading installed packages...


S  | Name                     | Type    | Version             | Arch   | Repository
---+--------------------------+---------+---------------------+--------+------------------------------------------
i+ | hplip-sane               | package | 3.20.11-lp151.230.1 | x86_64 | suse-Printing(hplip cups)
i+ | libKF5Sane5              | package | 20.12.1-lp151.2.1   | x86_64 | KDE:/Applications/KDE_Frameworks5
i+ | libksane-lang            | package | 20.12.1-lp151.2.1   | noarch | KDE:/Applications/KDE_Frameworks5
i  | libsane1                 | package | 1.0.32-lp151.140.1  | x86_64 | suse/graphics (libpoppler97)
i+ | sane-backends            | package | 1.0.32-lp151.140.1  | x86_64 | suse/graphics (libpoppler97)
i+ | sane-backends-autoconfig | package | 1.0.31-lp151.6.3.1  | x86_64 | Repository principale degli aggiornamenti
i+ | sane-saned               | package | 1.0.32-lp151.140.1  | x86_64 | suse/graphics (libpoppler97)
i+ | xsane                    | package | 0.999-lp151.2.3     | x86_64 | Repository principale (OSS)
procuste@server3TW:~> 



and here:

procuste@server3TW:~> zypper lr -d#  | Alias                                               | Name                                                | Enabled | GPG Check | Refresh | Priority | Type   | URI                                                                                                      | Service
---+-----------------------------------------------------+-----------------------------------------------------+---------+-----------+---------+----------+--------+----------------------------------------------------------------------------------------------------------+--------
 1 | Emulators:/Wine                                     | suse-Emulators:/Wine                                | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/Emulators:/Wine/openSUSE_Leap_15.1/                            | 
 2 | GNOME:/Apps                                         | GNOME:/Apps                                         | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/GNOME:/Apps/openSUSE_Leap_15.1/                                | 
 3 | KDE:/Applications/KDE_Frameworks5                   | KDE:/Applications/KDE_Frameworks5                   | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/KDE:/Applications/KDE_Frameworks5_openSUSE_Leap_15.1/          | 
 4 | KDE:/Frameworks5                                    | KDE:/Frameworks5                                    | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/KDE:/Frameworks5/openSUSE_Leap_15.1/                           | 
 5 | KDE:/Qt5                                            | KDE:/Qt5                                            | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/KDE:/Qt5/openSUSE_Leap_15.1/                                   | 
 6 | agg-driver-scanner-epson                            | agg-driver-scanner-epson                            | No      | ----      | ----    |   99     | NONE   | dir:/home/procuste/agg/agg-hardware/driver-scanner-epson                                                 | 
 7 | download.opensuse.org-non-oss                       | Repository principale (NON-OSS)                     | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/distribution/leap/15.1/repo/non-oss/                                        | 
 8 | download.opensuse.org-non-oss_1                     | Repository degli aggiornamenti (Non-Oss)            | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/leap/15.1/non-oss/                                                   | 
 9 | download.opensuse.org-oss                           | Repository principale (OSS)                         | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/distribution/leap/15.1/repo/oss/                                            | 
10 | download.opensuse.org-oss_1                         | Repository principale degli aggiornamenti           | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/update/leap/15.1/oss                                                        | 
11 | google-chrome                                       | google_(chrome)                                     | No      | ----      | ----    |   99     | rpm-md | http://dl.google.com/linux/chrome/rpm/stable/x86_64                                                      | 
12 | home:/AndnoVember:/LXQT(copyq)                      | home:/AndnoVember:/LXQT(copyq)                      | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/home:/AndnoVember:/LXQT/openSUSE_Leap_15.1/                    | 
13 | home:/wolfi323:/branches:/KDE:/Frameworks5(beclock) | home:/wolfi323:/branches:/KDE:/Frameworks5(beclock) | Yes     | (r ) Yes  | Yes     |  110     | rpm-md | http://download.opensuse.org/repositories/home:/wolfi323:/branches:/KDE:/Frameworks5/openSUSE_Leap_15.1/ | 
14 | http-download.opensuse.org-7ba65c3b                 | KDE:Extra                                           | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/KDE:/Extra/openSUSE_Leap_15.1/                                 | 
15 | openSUSE_Leap_15.0                                  | suse-security:/chipcard(pcsclite)                   | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/security:/chipcard/openSUSE_Leap_15.1/                         | 
16 | openSUSE_Leap_15.0_1                                | home:/luckyb69(luckybackup)                         | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/repositories/home:/luckyb69/openSUSE_Leap_15.0/                             | 
17 | openSUSE_Leap_15.1                                  | suse-LibreOffice:/6.4                               | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/LibreOffice:/6.4/openSUSE_Leap_15.1/                           | 
18 | openSUSE_Leap_15.1_1                                | suse-server:/messaging(telegram)                    | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/server:/messaging/openSUSE_Leap_15.1/                          | 
19 | openSUSE_Leap_15.1_2                                | suse/graphics (libpoppler97)                        | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | https://download.opensuse.org/repositories/graphics/openSUSE_Leap_15.1/                                  | 
20 | opensuse-guide.org-repo                             | Libdvdcss Repository                                | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://opensuse-guide.org/repo/openSUSE_Leap_15.1/                                                       | 
21 | packman.inode.at-suse                               | Packman Repository                                  | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://packman.inode.at/suse/openSUSE_Leap_15.1/                                                         | 
22 | repo-debug                                          | openSUSE-Leap-15.1-Debug                            | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/debug/distribution/leap/15.1/repo/oss/                                      | 
23 | repo-debug-non-oss                                  | openSUSE-Leap-15.1-Debug-Non-Oss                    | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/debug/distribution/leap/15.1/repo/non-oss/                                  | 
24 | repo-debug-update                                   | openSUSE-Leap-15.1-Update-Debug                     | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/debug/update/leap/15.1/oss/                                                 | 
25 | repo-debug-update-non-oss                           | openSUSE-Leap-15.1-Update-Debug-Non-Oss             | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/debug/update/leap/15.1/non-oss/                                             | 
26 | repo-source                                         | openSUSE-Leap-15.1-Source                           | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/source/distribution/leap/15.1/repo/oss/                                     | 
27 | repo-source-non-oss                                 | openSUSE-Leap-15.1-Source-Non-Oss                   | No      | ----      | ----    |   99     | rpm-md | http://download.opensuse.org/source/distribution/leap/15.1/repo/non-oss/                                 | 
28 | suse-Printing(hplip_cups)                           | suse-Printing(hplip cups)                           | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/Printing/openSUSE_Leap_15.1/                                   | 
29 | suse-Publishing(pdfchain)                           | suse-Publishing(pdfchain)                           | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/Publishing/openSUSE_Leap_15.1/                                 | 
30 | suse-Virtualization(virtualbox)                     | suse-Virtualization(virtualbox)                     | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/Virtualization/openSUSE_Leap_15.1/                             | 
31 | suse-filesystems                                    | suse-filesystems                                    | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | https://download.opensuse.org/repositories/filesystems/openSUSE_Leap_15.1/                               | 
32 | suse-hardware(cyanogen)                             | suse-hardware(cyanogen)                             | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/hardware/openSUSE_Leap_15.1/                                   | 
33 | suse-network(nextcloud)                             | suse-network(nextcloud)                             | Yes     | (r ) Yes  | Yes     |   99     | rpm-md | http://download.opensuse.org/repositories/network/openSUSE_Leap_15.1/                                    | 
procuste@server3TW:~> 

I would change all sane packages back to version sane-backends-1.0.31 from update-Repo, 1.0.32 can make some problems.

yes I know 15.1 is end of life, I will upgrade but for 15.2 do not works well on my laptop, cursor flickering and other problem that I would not to have on my desktop

When I see your Repo list, that is not a new problem for me…
I would install new and do not make any Update/Upgrade to Leap 15.2.

yeahhhh, it works again now, manythanks

…so end of life means really end, I will follow your suggestion, all that works should continue to work…

at the end it worked only at 100 point resolution, so I upgaraded and it has been less painful tha I expectedlol!