Bug#870121: mate-power-manager: sometimes hits not-reached assertion on startup

[brian m. carlson]

forwarded 870121 https://github.com/mate-desktop/mate-power-manager/issues/226
kthxbye

On Sat, Jul 29, 2017 at 10:10:18PM +0000, brian m. carlson wrote:
> mate-power-manager is not starting when I log in anymore.  It logs the
> following to ~/.xsession-errors.
> 
>   **
>   ERROR:gpm-kbd-backlight.c:342:gpm_kbd_backlight_on_dbus_signal: code should not be reached
> 
> Running it by hand the first time produced the same result.  Running a
> second time caused it to start.
> 
> I believe this issue is preventing my screen from locking when I suspend
> my laptop.  I've seen that issue on two separare Thinkpad X1 Carbon
> laptops, both at home and at work.  On the work laptop, the machine does
> not suspend at all.

This appears to be caused by the upgrade of upower from 0.99.4-4+b1 to
0.99.5-2.  With the upgrade, even if mate-power-manager starts, it ends
up crashing on suspend.  Once I donwgrade upower, mate-power-manager
suspends and restores as expected, locking the screen as normal.
-- 
brian m. carlson / brian with sandals: Houston, Texas, US
https://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: https://keybase.io/bk2204
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