i used linux-libre-5.10 and it worked fine. but today i've tried linux-libre-5.12.7 and it seems like the problem has solved. thanks for your help.
bug#48604: Linux-libre 5.12.5 freezes
Yusuf Talha via Bug reports for GNU Guix Sat, 29 May 2021 09:03:06 -0700
- bug#48604: Linux-libre 5.12.5 fre... Yusuf Talha via Bug reports for GNU Guix
- bug#48604: Linux-libre 5.12.... Maxime Devos
- bug#48604: Linux-libre 5.12.... Leo Famulari
- bug#48604: Yusuf Talha via Bug reports for GNU Guix
- bug#48604: Linux-libre 5.12.... Mark H Weaver
- bug#48604: Linux-libre 5... Leo Famulari
- bug#48604: Linux-libre 5.12.... Yusuf Talha via Bug reports for GNU Guix
- bug#48604: Linux-libre 5... Maxime Devos