I am unable to change screen brightness on my Lenovo Z570.
I tried the solutions 6.2, 6.3, 6.4 and 6.5 given in this link - https://sites.google.com/site/easylinux ... adjustable
Out of those only 6.5 works, but this solution is applied only at the software level, not hardware.
I didn't try 6.1 since my laptop has two video cards, and this doesn't work on laptops with two video cards.
Is there any solution out there that will work?
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System: Host: MiGPilot Kernel: 3.13.0-37-generic x86_64 (64 bit) Desktop: Gnome Distro: Linux Mint 17.1 Rebecca
Machine: System: LENOVO (portable) product: HuronRiver Platform version: Ideapad Z570
Mobo: LENOVO model: Emerald Lake version: FAB1 Bios: LENOVO version: 45CN28WW date: 02/22/2011
CPU: Dual core Intel Core i3-2310M CPU (-HT-MCP-) cache: 3072 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx)
Clock Speeds: 1: 800.00 MHz 2: 2100.00 MHz 3: 1200.00 MHz 4: 2100.00 MHz
Graphics: Card-1: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
Card-2: NVIDIA GF108M [GeForce GT 520M]
X.Org: 1.15.1 driver: nvidia Resolution: 1366x768@60.0hz
GLX Renderer: GeForce GT 520M/PCIe/SSE2 GLX Version: 4.4.0 NVIDIA 331.113
Audio: Card-1: NVIDIA GF108 High Definition Audio Controller driver: snd_hda_intel Sound: ALSA ver: k3.13.0-37-generic
Card-2: Intel 6 Series/C200 Series Chipset Family High Definition Audio Controller driver: snd_hda_intel
Network: Card-1: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller driver: r8169
IF: eth0 state: down mac: f0:de:f1:4c:0c:76
Card-2: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) driver: ath9k
IF: wlan0 state: up mac: 68:a3:c4:40:76:79
Drives: HDD Total Size: 640.1GB (1.0% used) 1: id: /dev/sda model: TOSHIBA_MK6465GS size: 640.1GB
Partition: ID: / size: 19G used: 5.2G (30%) fs: ext4 ID: /home size: 7.7G used: 729M (10%) fs: ext4
ID: swap-1 size: 3.00GB used: 0.00GB (0%) fs: swap
RAID: No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors: System Temperatures: cpu: 49.0C mobo: 40.0C gpu: 43C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 173 Uptime: 7 min Memory: 754.0/2856.8MB Client: Shell inxi: 1.8.4