Another option missing from the man page is -ow (for overwriting the input file in-place), available since version 1.7.22.
$ pngcrush 2>&1 | grep -- -ow
pngcrush -ow [other options] file.png [tempfile.png]
-ow (Overwrite)Fixed for me by the latest -proposed package. I’m running Bionic, non-EFI, and was affected by the issue with the earlier package.
A new log; still nothing useful from colord AFAICT, despite the –verbose.
…except that –debug isn’t one of gsd-color’s recognized parameters, and adding it caused GDM to fail to start. I changed it to –verbose which is available.
10.08 jani@saegusa:~$ LC_ALL=C /usr/lib/gnome-settings-daemon/gsd-color –help-all
Usage:
gsd-color [OPTION?] color
Help Options:
-h, –help Show help options
–help-all Show all help options
–help-gtk Show GTK+ Options
GTK+ Options
–class=CLASS Program class as used by the window manager
–name=NAME Program name as used by the window manager
–gdk-debug=FLAGS GDK debugging flags to set
–gdk-no-debug=FLAGS GDK debugging flags to unset
–gtk-module=MODULES Load additional GTK+ modules
–g-fatal-warnings Make all warnings fatal
–gtk-debug=FLAGS GTK+ debugging flags to set
–gtk-no-debug=FLAGS GTK+ debugging flags to unset
Application Options:
–exit-time Exit after n seconds time
–dummy-name Name when using the dummy daemon
-v, –verbose Verbose
–display=DISPLAY X display to use
There’s also –gtk-debug and –gdk-debug, but I could do with a little help for what to select for those, as just giving ’all’ seems a little counterproductive (for instance, ”touchscreen” and ”interactive” don’t seem very useful here).
10.03 jani@saegusa:~$ LC_ALL=C /usr/lib/gnome-settings-daemon/gsd-color –gtk-debug help
Supported debug values: misc plugsocket text tree updates keybindings multihead modules geometry icontheme printing builder size-request no-css-cache baselines pixel-cache no-pixel-cache interactive touchscreen actions resize layout all help
10.04 jani@saegusa:~$ LC_ALL=C /usr/lib/gnome-settings-daemon/gsd-color –gdk-debug help
Supported debug values: events misc dnd xim nograbs input cursor multihead xinerama draw eventloop frames settings opengl all help
Error parsing option –gdk-debug
(Looks like –gdk-debug reports an error with ’help’, despite having just listed it as one of the options.)
Sure, I’ve now set it up thus and will post the results once I hit this again (it seems pretty unpredictable, so could be anything from days to weeks).
Here you go. Had this occur twice in a row just now, so my original theory of the second login never failing was false.
Under some circumstances, content from one Firefox window hidden behind another leaks onto the top one. Reproducible in both Bionic (with Intel graphics) and Disco (in a VirtualBox VM), reporting this from Disco.
== Steps to reproduce ==
1. Open one Firefox window, drag it to the right side of screen to fill the right half, and navigate to https://www.twitch.tv/rifftrax
2. Open another Firefox window, maximize it on top of the first one, and use this topmost window to open https://www.youtube.com/watch?v=P5dxd-ocaE8 and expand the Youtube view to ’theatre’ mode
== What happens ==
White parts of content in Firefox window #1 cast a spectral shadow on the black parts of content in Firefox window #2. It’s quite subtle, but luckily can be caught in screenshots: see attachments below. Pausing the Youtube video seems to make the effect to go away (the transparency disappears).
== What I’d expect to happen ==
For the topmost window to be completely opaque, i.e. not to see anything from behind the topmost window whether the video is playing or not.
== Other info ==
Though I don’t think this is tied the two sites I’ve used as an example, they’re the first and only ones I’ve happened to encounter this with. I’ve yet to find other reports about this, apart from one /r/Fedora thread mentioning something similar: https://www.reddit.com/r/Fedora/comments/7m9m4h/youtube_videos_are_transparent_kind_of_in_firefox/
Untouched screenshot of top window revealing content from another window below
I’ve hit an issue, which I believe I’ve now isolated to have come from upgrading fontconfig (and related packages) from 2.12.6-0ubuntu2 to 2.12.6-0ubuntu2.3 from -proposed: if I start Firefox and afterwards start Gparted or Synaptic, Firefox starts eating up all of my CPU. Eventually all letters in the Gparted/Synaptic UI turn into boxes.
Syslog typically then says something like below:
Dec 4 13:41:50 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:50.995: failed to create cairo scaled font, expect ugly output. the offending font is ’DejaVu Sans 11′
Dec 4 13:41:50 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:50.995: font_face status is: out of memory
Dec 4 13:41:50 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:50.995: scaled_font status is: out of memory
Dec 4 13:41:50 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:50.995: shaping failure, expect ugly output. shape-engine=’PangoFcShapeEngine’, font=’DejaVu Sans 11′, text=’Päivitä’
Dec 4 13:41:51 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:51.007: failed to create cairo scaled font, expect ugly output. the offending font is ’DejaVu Sans 11’
Dec 4 13:41:51 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:51.007: font_face status is: out of memory
Dec 4 13:41:51 saegusa synaptic.desktop[30027]: (synaptic:30028): Pango-WARNING **: 13:41:51.007: scaled_font status is: out of memory
The computer has 32 GB of memory and there’s plenty still usable when this occurs, so the OOM seems incorrect to me.
To be sure, I rolled back entirely from -proposed (which caused the issue to go away), then re-enabled -proposed and upgraded just fontconfig, and the issue reappeared.
Thanks Olivier, I’ve now added the link to my upstream report.
LO 1:6.0.6-0ubuntu0.18.04.1 in Bionic is likewise affected, and the workaround also works here.
