Rounded window shadow rendering problem

Cloudflash · 2021-12-11 01:07:31

I wonder if anyone found this problem?
Rounded corner windows will display abnormally under certain backgrounds (too bright or too dark) (just like on the picture)
Is it a shadow rendering problem or a graphics card driver problem?
Is there any solution?
My system information is
Operating System: Arch Linux
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2
Kernel Version: 5.15.7-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 4800H with Radeon Graphics
Memory: 30.8 GiB of RAM
Graphics Processor: AMD RENOIR
<img src = 'https://s3.bmp.ovh/imgs/2021/12/e33337d9cd2f722c.png' />
<img src = 'https://s3.bmp.ovh/imgs/2021/12/2c2436a9d0b5d823.png' />

seth · 2021-12-11 07:58:17

Is it a shadow rendering problem

Yes. (There're no "shadows", but some translucent gradients rendered around the windows that look "shadowish")

Likely solution is to get rid of CSD.
https://aur.archlinux.org/packages/gtk3-nocsd-git/
https://github.com/ZaWertun/gtk3-nocsd

kokoko3k · 2021-12-11 10:50:50

Does it happen with every app with csd and rounded corners?
Fome it works ok in chromium but not in firefox or thunderbird.

Cloudflash · 2021-12-11 12:13:55

kokoko3k wrote:

Does it happen with every app with csd and rounded corners?
Fome it works ok in chromium but not in firefox or thunderbird.

Unfortunately, every rounded window is like this

Cloudflash · 2021-12-11 12:32:48

seth wrote:

Is it a shadow rendering problem
Yes. (There're no "shadows", but some translucent gradients rendered around the windows that look "shadowish")
Likely solution is to get rid of CSD.
https://aur.archlinux.org/packages/gtk3-nocsd-git/
https://github.com/ZaWertun/gtk3-nocsd

Thanks for your solution！
I installed gtk3-nocsd, created the .xsession file and added
export GTK_CSD=0
export LD_PRELOAD="/usr/lib/libgtk3-nocsd.so.0"
Then restart
But it doesn't seem to take effect.
The problem is still there.
Did i do something wrong？
=.=

seth · 2021-12-11 12:38:36

~/.xsession isn't necessarily sourced by your shell.

tr '\0' '\n' < /proc/$(pidof thunderbird)/environ

Cloudflash · 2021-12-11 13:03:46

seth wrote:

~/.xsession isn't necessarily sourced by your shell.
tr '\0' '\n' < /proc/$(pidof thunderbird)/environ

also,I added the same in .zshrc

I used this instruction, but only got this
zsh: No such file or directory: /proc/environ

Cloudflash · 2021-12-11 13:10:16

seth wrote:

~/.xsession isn't necessarily sourced by your shell.
tr '\0' '\n' < /proc/$(pidof thunderbird)/environ

sorry,Thunderbird was not running just now
I tried again
Got this
zsh: No such file or directory: 9224

9224 is the pid of thunderbird

seth · 2021-12-11 13:50:02

You've some stray blanks in there?

tr '\0' '\n' < /proc/9224/environ

Cloudflash · 2021-12-11 14:04:05

seth wrote:

You've some stray blanks in there?
tr '\0' '\n' < /proc/9224/environ

so sorry. Looks yes
Now i get the correct output

DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DESKTOP_SESSION=plasma
DISPLAY=:0
GTK2_RC_FILES=/etc/gtk-2.0/gtkrc:/home/username/.gtkrc-2.0:/home/username/.config/gtkrc-2.0
GTK_CSD=0
GTK_IM_MODULE=gtk-im-context-simple
GTK_MODULES=canberra-gtk-module
GTK_RC_FILES=/etc/gtk/gtkrc:/home/username/.gtkrc:/home/username/.config/gtkrc
HOME=/home/username
KDE_APPLICATIONS_AS_SCOPE=1
KDE_FULL_SESSION=true
KDE_SESSION_UID=1000
KDE_SESSION_VERSION=5
LANG=en_US.UTF-8
LANGUAGE=en_US:en_US
LC_COLLATE=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_MONETARY=en_US.UTF-8
LC_NUMERIC=en_US.UTF-8
LC_TIME=en_US.UTF-8
LD_LIBRARY_PATH=/usr/lib/thunderbird
LD_PRELOAD=/usr/lib/libgtk3-nocsd.so.0
LOGNAME=username
MAIL=/var/spool/mail/username
MALLOC_OPTIONS=r
MESA_GLSL_CACHE_DIR=/tmp
MOTD_SHOWN=pam
MOZ_ASSUME_USER_NS=1
MOZ_HEADLESS=1
MOZ_LAUNCHED_CHILD=
MOZ_PROFILER_STARTUP=
NO_AT_BRIDGE=1
OLDPWD=/home/username
PAM_KWALLET5_LOGIN=/run/user/1000/kwallet5.socket
PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/local/go/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
PWD=/home/username
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_IM_MODULE=fcitx
QT_SCREEN_SCALE_FACTORS=eDP=1;HDMI-A-0=1;
SESSION_MANAGER=local/Unknow:@/tmp/.ICE-unix/1102,unix/Unknow:/tmp/.ICE-unix/1102
SHELL=/bin/zsh
SHLVL=0
SYSTEMD_EXEC_PID=961
TMPDIR=/tmp
USER=username
XAUTHORITY=/home/username/.Xauthority
XCURSOR_SIZE=24
XCURSOR_THEME=Adwaita
XDG_CONFIG_DIRS=/home/username/.config/kdedefaults:/etc/xdg
XDG_CURRENT_DESKTOP=KDE
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=2
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session1
XDG_SESSION_TYPE=x11
XDG_VTNR=1
XMODIFIERS=@im=fcitx
XRE_BINARY_PATH=
XRE_PROFILE_LOCAL_PATH=
XRE_PROFILE_PATH=
XRE_RESTARTED_BY_PROFILE_MANAGER=
XRE_START_OFFLINE=
XUL_APP_FILE=
_=/usr/bin/startplasma-x11
__GL_ALLOW_FXAA_USAGE=0
force_s3tc_enable=true

seth · 2021-12-11 14:39:02

Please use code tags, https://bbs.archlinux.org/help.php#bbcode

The environment is correctly set, though.
Maybe you can lift the firefox setting?
https://wiki.archlinux.org/title/Firefo … dow_border

Cloudflash · 2021-12-11 15:04:06

seth wrote:

Please use code tags, https://bbs.archlinux.org/help.php#bbcode
The environment is correctly set, though.
Maybe you can lift the firefox setting?
https://wiki.archlinux.org/title/Firefo … dow_border

I'm really sorry, I'm a novice, and I still can't use the forum proficiently

This may be a feasible solution. At the beginning I wanted to modify the configuration file to disable all shadows, but I did not find a valid configuration file. Because the problem is not only in firefox or thunderbird. Maybe I didn't explain it to you clearly. This problem exists in all applications. and I found the same problem from other people's desktops.
I think this is a bug
What we need is to solve this problem from the code
Do you think so?
But I still don’t know where to give feedback:(

AndroGR · 2021-12-14 22:08:59

seth wrote:

Is it a shadow rendering problem
Yes. (There're no "shadows", but some translucent gradients rendered around the windows that look "shadowish")
Likely solution is to get rid of CSD.
https://aur.archlinux.org/packages/gtk3-nocsd-git/
https://github.com/ZaWertun/gtk3-nocsd

Is there something similar for Plasma?

kokoko3k · 2021-12-15 05:57:04

AndroGR wrote:

seth wrote:
Is it a shadow rendering problem
Yes. (There're no "shadows", but some translucent gradients rendered around the windows that look "shadowish")
Likely solution is to get rid of CSD.
https://aur.archlinux.org/packages/gtk3-nocsd-git/
https://github.com/ZaWertun/gtk3-nocsd
Is there something similar for Plasma?

Plasma does not uses csd, but if you want kwin to display squared corners, just switch window decoration style.

Arch Linux

#1 2021-12-11 01:07:31

Rounded window shadow rendering problem

#2 2021-12-11 07:58:17

Re: Rounded window shadow rendering problem

#3 2021-12-11 10:50:50

Re: Rounded window shadow rendering problem

#4 2021-12-11 12:13:55

Re: Rounded window shadow rendering problem

#5 2021-12-11 12:32:48

Re: Rounded window shadow rendering problem

#6 2021-12-11 12:38:36

Re: Rounded window shadow rendering problem

#7 2021-12-11 13:03:46

Re: Rounded window shadow rendering problem

#8 2021-12-11 13:10:16

Re: Rounded window shadow rendering problem

#9 2021-12-11 13:50:02

Re: Rounded window shadow rendering problem

#10 2021-12-11 14:04:05

Re: Rounded window shadow rendering problem

#11 2021-12-11 14:39:02

Re: Rounded window shadow rendering problem

#12 2021-12-11 15:04:06

Re: Rounded window shadow rendering problem

#13 2021-12-14 22:08:59

Re: Rounded window shadow rendering problem

#14 2021-12-15 05:57:04

Re: Rounded window shadow rendering problem

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