xmobar wifi signal quality not displaying

[Justin Dove]

[cc'ing Aggelos as well as the Debian Haskell Group as it is listed as
maintainer on this project, sorry for the possible spam]

I've updated https://github.com/jaor/xmobar/issues/562 with a diagnosis of
the issue and a possible workaround. It seems my case is caused by some
change of permissions in bullseye, though I'm not sure exactly where it
happened. This can be circumvented by giving xmobar CAP_NET_ADMIN, though
ideally this would be avoided. Aside, my update also includes a note
remarking that the debian build should switch to nl80211 instead of iwlib.
In both cases, it looks like any changes are more appropriately addressed
by debian instead of xmobar itself.

On Sat, Aug 28, 2021 at 11:13 AM Justin Dove <dove at mit.edu> wrote:

> Hi Apollon,
>
> I posted this issue at GitHub a week or so ago:
> https://github.com/jaor/xmobar/issues/562
>
> When I upgraded from Buster to Bullseye, the wireless plugin in xmobar
> stopped displaying signal quality correctly, it just shows 0%, but it still
> shows the SSID correctly and `iw` still displays signal strength correctly.
> Any ideas how I can debug what's going on?
>
> Best,
> Justin
>
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