Bug 419912

Summary:	Race on blur global removal causes client crash
Product:	[Frameworks and Libraries] kwayland	Reporter:	amazingrise
Component:	server	Assignee:	Martin Flöser <mgraesslin>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	bugseforuns, butirsky, kde, kwin-bugs-null, nate, sloppydz
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description amazingrise 2020-04-10 11:31:27 UTC

SUMMARY
Cannot change Force Font DPI on Wayland

STEPS TO REPRODUCE
1. Login to Plasma Wayland and open systemsettings5
2. Select "Font" from sidebar
3. Check "Force Font DPI", and change it to whatever 96 or 120.
4. Then plasmashell will be restarted automatically, and nothing changes.
5. Reopen other applications, nothing changes either.

OBSERVED RESULT

The font DPI is not changed.

EXPECTED RESULT

The font DPI should be changed.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro Linux
(available in About System)
KDE Plasma Version: 5.18.4
KDE Frameworks Version: 5.68.0
Qt Version: 5.14.2

ADDITIONAL INFORMATION

Comment 1 David Edmundson 2020-04-10 12:24:36 UTC

It should update on next login.

What do you mean by plasmashell will be restarted automatically? That isn't in the code.

Please also include output of env and your ~/.xonfig./kdeglobals

Comment 2 amazingrise 2020-04-10 13:02:05 UTC

(In reply to David Edmundson from comment #1)
> It should update on next login.
> 
> What do you mean by plasmashell will be restarted automatically? That isn't
> in the code.
> 
> Please also include output of env and your ~/.xonfig./kdeglobals

Sorry, the DPI of plasmashell indeed changed on next login, and all of application works normally as well. But plasmashell is restarted automatically.

$ env
BROWSER=/usr/bin/firefox
COLORFGBG=0;15
COLORTERM=truecolor
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-99A1sUFzOu,guid=5d927313903ad90237d176ef5e906bf3
DESKTOP_SESSION=/usr/share/wayland-sessions/plasmawayland
DISPLAY=:1
EDITOR=/usr/bin/nano
GS_LIB=/home/amazingrise/.fonts
GTK_USE_PORTAL=1
HOME=/home/amazingrise
KDED_STARTED_BY_KDEINIT=1
KDE_FULL_SESSION=true
KDE_SESSION_UID=1000
KDE_SESSION_VERSION=5
KONSOLE_DBUS_SERVICE=:1.77
KONSOLE_DBUS_SESSION=/Sessions/1
KONSOLE_DBUS_WINDOW=/Windows/1
KONSOLE_VERSION=191203
LANG=zh_CN.UTF-8
LANGUAGE=zh_CN
LOGNAME=amazingrise
MAIL=/var/spool/mail/amazingrise
MKLROOT=/opt/intel/mkl
MOZ_PLUGIN_PATH=/usr/lib/mozilla/plugins
OLDPWD=/home/amazingrise
PAM_KWALLET5_LOGIN=/run/user/1000/kwallet5.socket
PATH=/home/amazingrise/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:/home/amazingrise/software
PLASMA_USE_QT_SCALING=1
PROFILEHOME=
PWD=/home/amazingrise
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_LINUX_ACCESSIBILITY_ALWAYS_ON=1
QT_QPA_PLATFORMTHEME=qt5ct
QT_WAYLAND_FORCE_DPI=120
SESSION_MANAGER=local/rise-manjaro:@/tmp/.ICE-unix/82334,unix/rise-manjaro:/tmp/.ICE-unix/82334
SHELL=/usr/bin/zsh
SHELL_SESSION_ID=b3430cb083304a65a8ab899b184acd4c
SHLVL=1
TERM=xterm-256color
USER=amazingrise
WAYLAND_DISPLAY=wayland-0
WINDOWID=1
X11LAYOUT=cn
X11MODEL=pc105
XCURSOR_SIZE=24
XCURSOR_THEME=breeze_cursors
XDG_CURRENT_DESKTOP=KDE
XDG_DATA_DIRS=/home/amazingrise/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_CLASS=user
XDG_SESSION_DESKTOP=KDE
XDG_SESSION_ID=10
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session8
XDG_SESSION_TYPE=wayland
XDG_VTNR=4
_=/usr/bin/env
ZSH=/home/amazingrise/.oh-my-zsh
PAGER=less
LESS=-R
LSCOLORS=Gxfxcxdxbxegedabagacad
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:

Comment 3 amazingrise 2020-04-10 13:06:47 UTC

I've changed title.(because after re-login, everything works well. but plasmashell really restarts.)
And here is the output of kdeglobals with some of private settings deleted (history locations and firefox profile):

[$Version]
update_info=filepicker.upd:filepicker-remove-old-previews-entry,fonts_global.upd:Fonts_Global,fonts_global_toolbar.upd:Fonts_Global_Toolbar,icons_remove_effects.upd:IconsRemoveEffects,kwin.upd:animation-speed

[ColorEffects:Disabled]
ChangeSelectionColor=
Color=56,56,56
ColorAmount=0
ColorEffect=0
ContrastAmount=0.65
ContrastEffect=1
Enable=
IntensityAmount=0.1
IntensityEffect=2

[ColorEffects:Inactive]
ChangeSelectionColor=true
Color=112,111,110
ColorAmount=0.025
ColorEffect=2
ContrastAmount=0.1
ContrastEffect=2
Enable=false
IntensityAmount=0
IntensityEffect=0

[Colors:Button]
BackgroundAlternate=77,77,77
BackgroundNormal=49,54,59
DecorationFocus=61,174,233
DecorationHover=61,174,233
ForegroundActive=61,174,233
ForegroundInactive=189,195,199
ForegroundLink=41,128,185
ForegroundNegative=218,68,83
ForegroundNeutral=246,116,0
ForegroundNormal=239,240,241
ForegroundPositive=39,174,96
ForegroundVisited=127,140,141

[Colors:Complementary]
BackgroundAlternate=59,64,69
BackgroundNormal=49,54,59
DecorationFocus=30,146,255
DecorationHover=61,174,230
ForegroundActive=246,116,0
ForegroundInactive=175,176,179
ForegroundLink=61,174,230
ForegroundNegative=237,21,21
ForegroundNeutral=201,206,59
ForegroundNormal=239,240,241
ForegroundPositive=17,209,22
ForegroundVisited=61,174,230

[Colors:Selection]
BackgroundAlternate=29,153,243
BackgroundNormal=61,174,233
DecorationFocus=61,174,233
DecorationHover=61,174,233
ForegroundActive=252,252,252
ForegroundInactive=239,240,241
ForegroundLink=253,188,75
ForegroundNegative=218,68,83
ForegroundNeutral=246,116,0
ForegroundNormal=239,240,241
ForegroundPositive=39,174,96
ForegroundVisited=189,195,199

[Colors:Tooltip]
BackgroundAlternate=77,77,77
BackgroundNormal=49,54,59
DecorationFocus=61,174,233
DecorationHover=61,174,233
ForegroundActive=61,174,233
ForegroundInactive=189,195,199
ForegroundLink=41,128,185
ForegroundNegative=218,68,83
ForegroundNeutral=246,116,0
ForegroundNormal=239,240,241
ForegroundPositive=39,174,96
ForegroundVisited=127,140,141

[Colors:View]
BackgroundAlternate=49,54,59
BackgroundNormal=35,38,41
DecorationFocus=61,174,233
DecorationHover=61,174,233
ForegroundActive=61,174,233
ForegroundInactive=189,195,199
ForegroundLink=41,128,185
ForegroundNegative=218,68,83
ForegroundNeutral=246,116,0
ForegroundNormal=239,240,241
ForegroundPositive=39,174,96
ForegroundVisited=127,140,141

[Colors:Window]
BackgroundAlternate=77,77,77
BackgroundNormal=49,54,59
DecorationFocus=61,174,233
DecorationHover=61,174,233
ForegroundActive=61,174,233
ForegroundInactive=189,195,199
ForegroundLink=41,128,185
ForegroundNegative=218,68,83
ForegroundNeutral=246,116,0
ForegroundNormal=239,240,241
ForegroundPositive=39,174,96
ForegroundVisited=127,140,141


[General]
BrowserApplication[$e]=!firefox
ColorScheme=BreezeDark
Name=Breeze Dark
XftAntialias=true
XftHintStyle=hintslight
XftSubPixel=rgb
dbfile=/home/amazingrise/.mozilla/firefox/*********.default/places.sqlite
fixed=JetBrains Mono,10,-1,5,50,0,0,0,0,0,Regular
font=Noto Sans Mono Medium,10,-1,5,57,0,0,0,0,0,Regular
menuFont=Noto Sans Mono Medium,10,-1,5,57,0,0,0,0,0,Regular
shadeSortColumn=true
smallestReadableFont=Noto Sans Mono Medium,9,-1,5,57,0,0,0,0,0,Regular
toolBarFont=Noto Sans Mono Medium,10,-1,5,57,0,0,0,0,0,Regular

[Icons]
Theme=breeze-dark

[KDE]
AnimationDurationFactor=0.25
LookAndFeelPackage=org.kde.breezedark.desktop
ShowDeleteCommand=false
ShowIconsInMenuItems=true
ShowIconsOnPushButtons=true
SingleClick=true
contrast=4
widgetStyle=kvantum-dark

[KFileDialog Settings]
Allow Expansion=false
Automatically select filename extension=true
Breadcrumb Navigation=false
Decoration position=0
LocationCombo Completionmode=5
PathCombo Completionmode=5
Show Bookmarks=false
Show Full Path=false
Show Inline Previews=true
Show Preview=false
Show Speedbar=true
Show hidden files=false
Sort by=Name
Sort directories first=true
Sort reversed=false
Speedbar Width=137
View Style=Simple
listViewIconSize=15

[KScreen]
ScaleFactor=1
ScreenScaleFactors=HDMI-0=1;eDP-1-1=1;DP-1-1=1;HDMI-1-2=1;DP-1-2=1;HDMI-1-3=1;

[KShortcutsDialog Settings]
Dialog Size=659,480

[PreviewSettings]
MaximumRemoteSize=0

[QtQuickRendererSettings]
SceneGraphBackend=opengl

[Toolbar style]
ToolButtonStyle=TextBesideIcon
ToolButtonStyleOtherToolbars=TextBesideIcon

[WM]
activeBackground=49,54,59
activeBlend=255,255,255
activeFont=Noto Sans Mono Medium,10,-1,5,57,0,0,0,0,0,Regular
activeForeground=239,240,241
inactiveBackground=49,54,59
inactiveBlend=75,71,67
inactiveForeground=127,140,141

Comment 4 amazingrise 2020-04-10 13:30:17 UTC

I tried to run plasmashell from terminal, and after changing DPI, it shows:

wl_registry@20: error 0: invalid global org_kde_kwin_blur_manager (50)
The Wayland connection experienced a fatal error: 协议错误
KCrash: Attempting to start /usr/bin/plasmashell from kdeinit
sock_file=/run/user/1000/kdeinit5__1
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = plasmashell path = /usr/bin pid = 84241
KCrash: Arguments: /usr/bin/plasmashell
[1]    84241 abort (core dumped)  plasmashell

 (Note: The four chinese character may be "protocol error" in English)
Thanks.

Comment 5 Patrick Silva 2020-04-10 18:15:33 UTC

on Wayland session of neon unstable, plasma crashes when a fonts setting is changed.

Comment 6 David Edmundson 2020-04-10 22:42:54 UTC

[1773409.435]  -> org_kde_kwin_blur_manager@38.create(new id org_kde_kwin_blur@118, wl_surface@167)
[1773409.460]  -> wl_compositor@4.create_region(new id wl_region@441)
[1773409.472]  -> wl_region@441.add(1, 0, 538, 1)
[1773409.487]  -> wl_region@441.add(0, 1, 540, 473)
[1773409.502]  -> org_kde_kwin_blur@118.set_region(wl_region@441)
[1773409.509]  -> org_kde_kwin_blur@118.commit()
[1773409.537]  -> org_kde_kwin_contrast_manager@27.create(new id org_kde_kwin_contrast@439, wl_surface@167)
[1773409.547]  -> wl_compositor@4.create_region(new id wl_region@437)
[1773409.552]  -> wl_region@437.add(1, 0, 538, 1)
[1773409.559]  -> wl_region@437.add(0, 1, 540, 473)
[1773409.565]  -> org_kde_kwin_contrast@439.set_region(wl_region@437)
[1773409.569]  -> org_kde_kwin_contrast@439.set_contrast(0.199219)
[1773409.576]  -> org_kde_kwin_contrast@439.set_intensity(0.398438)
[1773409.583]  -> org_kde_kwin_contrast@439.set_saturation(1.699219)
[1773409.588]  -> org_kde_kwin_contrast@439.commit()
[1773431.467] wl_display@1.delete_id(485)
[1773431.489] wl_display@1.delete_id(210)
[1773431.497] wl_display@1.error(wl_display@1, 0, "invalid object 118")



which as an error makes no sense as we've clearly just created object 118.

Comment 7 David Edmundson 2020-04-11 15:27:46 UTC

Kwin also resets on font changes. 

Which means we hit a problem I can reproduce here:

https://phabricator.kde.org/P582

Comment 8 David Edmundson 2020-08-05 12:45:32 UTC

*** Bug 419877 has been marked as a duplicate of this bug. ***

Comment 9 Nate Graham 2021-02-23 06:03:57 UTC

Should be the same root cause as Bug 414834.

*** This bug has been marked as a duplicate of bug 414834 ***