/sys/... read-only in LXC container

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I am getting this in my LXC container. How can i fix this? I can change values on Proxmox host directly but not in LXC.

[root@desktop ~]# echo 4 > /sys/class/drm/card1/device/pp_power_profile_mode
-bash: /sys/class/drm/card1/device/pp_power_profile_mode: Read-only file system

My config:

earch: amd64
cores: 16
features: nesting=1
hostname: desktop
memory: 16384
net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=BA:43:FD:F7:63:A3,ip=dhcp,ip6=auto,type=veth
onboot: 0
ostype: archlinux
rootfs: zpool:subvol-106-disk-0,size=256G
swap: 4096
tags: arch
lxc.cgroup2.devices.allow: a
lxc.autodev: 1
lxc.hook.autodev: sh -c "mknod -m 0666 ${LXC_ROOTFS_MOUNT}/dev/fuse c 10 229"
lxc.mount.entry: /mnt/pve mnt/pve none rbind,optional,create=dir 0 0
lxc.mount.entry: /dev/video0 dev/video0 none bind,optional,create=file
lxc.mount.entry: /dev/dri dev/dri none rbind,optional,create=dir
lxc.mount.entry: /dev/snd dev/snd none rbind,optional,create=dir
lxc.mount.entry: /dev/input dev/input none rbind,optional,create=dir
lxc.cgroup2.devices.allow: c 10:223 rwm
lxc.mount.entry: /dev/uinput dev/uinput none bind,optional,create=file
lxc.mount.entry: /dev/dsp dev/dsp none bind,optional,create=file
lxc.mount.entry: /dev/hidraw3 dev/hidraw3 none bind,optional,create=file
lxc.mount.entry: /dev/nvme0n1 dev/nvme0n1 none bind,optional,create=file
lxc.mount.entry: /dev/nvme1n1 dev/nvme1n1 none bind,optional,create=file
lxc.mount.entry: /dev/sda dev/sda none bind,optional,create=file
lxc.cgroup2.devices.allow: c 116:* rwm