#  zypper clean 
All repositories have been cleaned up.
#
#
# zypper ref --force
...
Building repository 'libdvdcss repository' cache ..............................................................[done]
Forcing raw metadata refresh
Retrieving repository 'nVidia Graphics Drivers' metadata .....................................................[error]
Repository 'nVidia Graphics Drivers' is invalid.
[https-download.nvidia.com-4b3d2d94|https://download.nvidia.com/opensuse/leap/15.5] Valid metadata not found at specified URL
History:
 - [|] Error trying to read from 'https://download.nvidia.com/opensuse/leap/15.5'
 - Download (curl) error for 'https://download.nvidia.com/opensuse/leap/15.5/content':
   Error code: Curl error 92
   Error message: HTTP/2 stream 0 was not closed cleanly: PROTOCOL_ERROR (err 1)

Please check if the URIs defined for this repository are pointing to a valid repository.
Skipping repository 'nVidia Graphics Drivers' because of the above error.
Forcing raw metadata refresh

404 - Not Found

# zypper lr -d
#  | Alias                                    | Name                                                                                        | Enabled | GPG Check | Refresh | Priority | Type   | URI                                                                              | Service
---+------------------------------------------+---------------------------------------------------------------------------------------------+---------+-----------+---------+----------+--------+----------------------------------------------------------------------------------+--------

...
 4 | https-download.nvidia.com-4b3d2d94       | nVidia Graphics Drivers                                                                     | Yes     | ( p) Yes  | Yes     |   99     | rpm-md | https://download.nvidia.com/opensuse/leap/15.5     
...