Comment 72 for bug 1731459

@gunnarhj I tested the ppa and bionic-propsed a machine with fresh clean install of bionic with CanoScan LIDE 100. The issue is *not* fixed on this machine.

Here are the details of my testing:

I switched back and forth between distro-default, ppa and bionic-proposed versions of libsane-common (and libsane1), restarted the machine etc.

PPA

After adding ppa, I run apt upgrade which updated these libsane-common, libsane1, sane-utils packages to

```
libsane-common/bionic,bionic,now 1.0.27-1~experimental3ubuntu2.2~ppa all [installed,automatic]
libsane1/bionic,now 1.0.27-1~experimental3ubuntu2.2~ppa amd64 [installed,automatic]
sane-utils/bionic,now 1.0.27-1~experimental3ubuntu2.2~ppa amd64 [installed,automatic]

```

I did a test scan. Colored bar still appeared. I restarted the system (or should I have restarted some sane service?). Tried scanning again. Issue still exists.

To go back to distro default, I removed the ppa and libsane-common. This removed a whole bunch of dependencies including ubuntu-desktop and simple-scan. Reinstalling ubuntu-desktop brought libsane-common etc back. Scanned a page again to see if there are any surprises. None. The problem still existed.

BIONIC-PROPOSED

I enabled bionic-proposed channel repo. It showed a whole bunch of updates. I had to pin the packages and install libsane-common/bionic-proposed and sane-utils/bionic-proposed.

package versions after this:
libsane-common/bionic-proposed,bionic-proposed,now 1.0.27-1~experimental3ubuntu2.2 all [installed]
libsane1/bionic-proposed,now 1.0.27-1~experimental3ubuntu2.2 amd64 [installed]
sane-utils/bionic-proposed,now 1.0.27-1~experimental3ubuntu2.2 amd64 [installed]

The problem persisted during immediate scan and after a restart.