Looks like Hardware Information was removed from Yast. Is there a way to get it back, or an alternative?
zypper --no-refresh se yast | egrep ‘hw|hardw’ produces the same response in 15.2 and 15.3. Are you sure you don’t mean missing from Plasma settings or another DE’s setup or configuration utility?
There are a number of utilities that report hardware via Konsole or other command shell: inxi, lspci lshw, hwinfo, lsusb, alsa-info.sh, dmidecode and more.
It happens on a clean install, after wiping the SSD with GParted. I’m using KDE, and ran Yast from the menu. hwinfo is fine, though, thanks.
Indeed, during installation of 15.3, with normal or default selection of packages, Yast’s Hardware Information part is not installed. When Yast starts, the Hardware Information option is missing in Hardware menu. This has not happened with earlier versions of opensuse.
I have solved the issue, but, because I did many steps, I cannot reproduce the steps exactly. Here:
Install a few relevant packages from selection of Yast’s search: in Yast’s software manager, search for word yast, and select a few packages that are not installed yet seem relevant.
Install Gnome Desktop Environment (Basic) and Gnome Desktop Environment (X11).
Reboot.
Some of these steps will be excessive.
Seems to be a simple omission. Maybe will be corrected later.
There are many Yast modules not installed by default search Yast for Yast 
It seems that, as far as Leap 15.3 is concerned, the package “yast2-hardware-detection” has to be retrieved from the SUSE SLE repository –
- <https://software.opensuse.org/package/yast2-hardware-detection?search_term=yast2-hardware-detection>.
- <https://build.opensuse.org/package/show/YaST%3ASLE-15%3ASP3/yast2-hardware-detection>.
- <https://build.opensuse.org/package/show/YaST%3AHead/yast2-hardware-detection>.
If you missed this part of the Leap 15.3 Release Notes – <https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/15.3/index.html#installation-new-update-repos> – you’ll happily experience issues such as the one you’ve described here …
Can you tell which sentences I missed, and what shall be done?
After a second installation, I have found that package
yast2-tune
must be installed in order for yast to show the section
Hardware Information
Is this enough, or the default selection of repositories must be changed, or something else must be done?
With Leap 15.2, “yast2-tune” was also needed –
> LANG=C zypper info yast2-tune
Loading repository data...
Reading installed packages...
Information for package yast2-tune:
-----------------------------------
Repository : Hauptaktualisierungs-Repository
Name : yast2-tune
Version : 4.2.5-lp152.2.3.1
Arch : x86_64
Vendor : openSUSE
Installed Size : 161.0 KiB
Installed : Yes
Status : up-to-date
Source package : yast2-tune-4.2.5-lp152.2.3.1.src
Summary : YaST2 - Hardware Tuning
Description :
This package contains the YaST2 component for hardware configuration.
>
> rpm -ql yast2-tune
/usr/share/YaST2/clients
/usr/share/YaST2/clients/hwinfo.rb
/usr/share/YaST2/clients/hwinfo_proposal.rb
/usr/share/YaST2/clients/inst_hwinfo.rb
/usr/share/YaST2/clients/system_settings.rb
/usr/share/YaST2/clients/system_settings_finish.rb
/usr/share/YaST2/include
/usr/share/YaST2/include/hwinfo
/usr/share/YaST2/include/hwinfo/newid.rb
/usr/share/YaST2/include/hwinfo/routines.rb
/usr/share/YaST2/include/hwinfo/system_settings_dialogs.rb
/usr/share/YaST2/include/hwinfo/system_settings_ui.rb
/usr/share/YaST2/lib
/usr/share/YaST2/lib/tune
/usr/share/YaST2/lib/tune/widgets.rb
/usr/share/YaST2/modules
/usr/share/YaST2/modules/InitHWinfo.rb
/usr/share/YaST2/modules/NewID.rb
/usr/share/YaST2/modules/SystemSettings.rb
/usr/share/YaST2/scrconf
/usr/share/YaST2/scrconf/modprobe_newid.scr
/usr/share/applications/YaST2
/usr/share/applications/YaST2/org.opensuse.yast.HWInfo.desktop
/usr/share/applications/YaST2/org.opensuse.yast.SystemSettings.desktop
/usr/share/doc/packages/yast2-tune
/usr/share/doc/packages/yast2-tune/COPYING
/usr/share/icons
/usr/share/icons/hicolor
/usr/share/icons/hicolor/scalable
/usr/share/icons/hicolor/scalable/apps
/usr/share/icons/hicolor/scalable/apps/yast-hwinfo.svg
/usr/share/icons/hicolor/scalable/apps/yast-kernel.svg
/usr/share/licenses/yast2-tune
/usr/share/licenses/yast2-tune/COPYING
/usr/share/metainfo
/usr/share/metainfo/org.opensuse.yast.HWInfo.metainfo.xml
/usr/share/metainfo/org.opensuse.yast.SystemSettings.metainfo.xml
>
With Leap 15.3, this package is installed via the “YaST:SLE-15:SP3” repository – if you missed the required addition of the SUSE SLE repositories during the upgrade from Leap 15.2, this is exactly one of the issues you’ll experience …
https://build.opensuse.org/package/show/YaST%3ASLE-15%3ASP3/yast2-tune
THANKS! That greatly helped me.