We sincerely apologize for the inconvenience. Currently, Treeland is still an experimental feature in the Deepin 25 system and may not be very stable. If you experience a desktop crash or black screen while using Treeland, you can return to the normal X11 desktop environment using the following method:

When the screen turns black, press Ctrl + Alt + F2 (any key from F2 to F5 will work) to enter the TTY. If there is no response, you can enter the TTY after restarting when the Deepin logo appears. Then, enter your computer username and password, and execute the following commands to return to the normal X11 desktop environment:

sudo systemctl disable ddm
sudo systemctl stop ddm
sudo systemctl enable lightdm
sudo systemctl start lightdm

Additionally, if you are still able to operate the Control Center in Treeland, you can also return to the normal X11 desktop mode by going to Control Center > System Updates > Technology Preview and selecting lightDM.

Hello Moderator!

Thanks for the reply

but it looks like i already did

so how can i update deepin version and i dont think anyone uses deepin 25.0.9 or 25.0.7

just lemme know

楼主已经能够切回X11，他是希望能够修复浏览器连同整个Treeland修复的问题

Treeland is at an early stage, and they need some time to handle the problems.

Deepin 25.0.9 is the latest stable version, while 25.0.10 is available via Beta channel. There are not much changes of Treeland recently though. You can update through Control Center or the command sudo apt update && sudo apt full-upgrade.

Get:1 https://dl.google.com/linux/chrome/deb stable InRelease [1,825 B]
Hit:2 https://community-packages.deepin.com/beige crimson InRelease
Hit:3 https://community-packages.deepin.com/driver-25 snipe InRelease
Get:5 https://dl.google.com/linux/chrome/deb stable/main amd64 Packages [1,213 B]
Get:4 https://app-store-files.uniontech.com/251210131952150/appstorev23 crimson InRelease [7,655 B]
Get:6 https://app-store-files.uniontech.com/251210131952150/appstorev23 crimson/appstore amd64 Packages [913 kB]
Fetched 924 kB in 5s (196 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
bamfdaemon deepin-dvsrv deepin-prox
deepin-screen-recorder-plugin deepin-system-fixpkg
deepin-system-update deepin-theme-macaron fuse-overlayfs
ipwatchd libbamf3-2 libdframeworkdbus2 libgtop-2.0-11
libgtop2-common libllvm19 libssh-gcrypt-4 libwlroots-0.18
libwnck-3-0 libwnck-3-common libxres1
mobile-broadband-provider-info
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
HP1@HP-DEEPIN:~$

it says the system is up to date. would u mind me to ask me about repos and i should upgrade

The way to join Beta channel is offered in https://bbs.deepin.org/post/293795

but i cant join it. also it requires 4 level. im still 3 level

Have a look at "My Points". Just visit the forum for several days or post some threads.

alright. but i had to make reply even more until 4 level. well there is no i could upgrade it without beta channel on my laptop :[

so thank you