Applications -> Others -> KDE system settings -> Power Management<br />
No effecting of moving Display Brightness bar in all three On ac power, On battery, and low battery.<br />
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Using Samsung Laptop<br />
NP300E5X-A0BIN<br />
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[<a href="mailto:root@localhost">root@localhost</a> opt]# lsb_release -a<br />
LSB Version: :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch<br />
Distributor ID: CentOS<br />
Description: CentOS Linux release 7.0.1406 (Core) <br />
Release: 7.0.1406<br />
Codename: Core<br />
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[<a href="mailto:root@localhost">root@localhost</a> opt]# lspci<br />
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)<br />
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)<br />
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)<br />
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)<br />
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)<br />
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)<br />
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4)<br />
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)<br />
00:1f.0 ISA bridge: Intel Corporation HM75 Express Chipset LPC Controller (rev 04)<br />
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)<br />
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)<br />
01:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)<br />
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
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