# Laptop backlight control regression with 465.24.02

**URL:** <https://forums.developer.nvidia.com/t/laptop-backlight-control-regression-with-465-24-02/175585>\
**Category:** Linux\
**Created:** [April 19, 2021, 12:17am UTC](https://forums.developer.nvidia.com/t/laptop-backlight-control-regression-with-465-24-02/175585 "2021-04-19T00:17:04Z")\
**Posts on this page:** 1\
**Showing post:** 80

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**Author:** ![pengjizong.fr](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/pengjizong.fr/32/49516_2.png) [@pengjizong.fr](https://forums.developer.nvidia.com/u/pengjizong.fr)\
**Post date:** [February 3, 2022, 8:48pm UTC](https://forums.developer.nvidia.com/t/laptop-backlight-control-regression-with-465-24-02/175585/80 "2022-02-03T20:48:23Z")

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I confirm that the brightness issue has been solved by installing `nvidia-driver-510` from [https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa](https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa) for my Lenovo Legion Y7 laptop, known as Y9000K in mainland China.

However, the problem where the sound disappears when waking up from suspension is still present.  
System:  
Host: jizong-Legion Kernel: 5.16.4-051604-generic x86\_64 bits: 64  
Desktop: GNOME 40.5 Distro: Ubuntu 21.10 (Impish Indri)  
Graphics:  
Device-1: NVIDIA GA104M [GeForce RTX 3080 Mobile / Max-Q 8GB/16GB]  
driver: nvidia v: 510.47.03  
Device-2: Acer Integrated Camera type: USB driver: uvcvideo  
Display: x11 server: [X.Org](http://X.Org) 1.20.13 driver: loaded: nvidia  
unloaded: fbdev,modesetting,nouveau,vesa resolution: 1: 3840x2160~60Hz  
2: 4096x2560  
OpenGL: renderer: NVIDIA GeForce RTX 3080 Laptop GPU/PCIe/SSE2  
v: 4.6.0 NVIDIA 510.47.03

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