Estou usando o laptop Intel i5 da terceira geração da Samsung com Radeon HD8750 e Intel HD4000, com o Ubuntu 14.04
Meu laptop está usando apenas a placa gráfica integrada. Nem sequer menciona a placa gráfica dedicada. Eu acho que ambas as placas gráficas estão ligadas, é por isso que meu laptop está consumindo mais energia e ficando muito quente.
No meu laptop anterior eu usei bumblebee para essa troca entre a placa gráfica 2. Existe alguma ferramenta similar disponível para a ATI, ou é possível desabilitar um dos cartões (essa opção não é fornecida no menu de inicialização da Samsung).
Sugira algo para resolver este problema. Eu posso postar a saída de qualquer comando se você precisar.
lspci -v
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: f7d00000-f7dfffff
Prefetchable memory behind bridge: 00000000e0000000-00000000efffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, medium devsel, latency 0, IRQ 43
Memory at f7e00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at f7e1a000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at f7e18000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at f7e10000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: f7c00000-f7cfffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Prefetchable memory behind bridge: 00000000f0000000-00000000f00fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at f7e17000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 45
I/O ports at f0b0 [size=8]
I/O ports at f0a0 [size=4]
I/O ports at f090 [size=8]
I/O ports at f080 [size=4]
I/O ports at f060 [size=32]
Memory at f7e16000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: medium devsel, IRQ 11
Memory at f7e15000 (64-bit, non-prefetchable) [size=256]
I/O ports at f040 [size=32]
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8670A/8670M/8750M]
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f7d00000 (64-bit, non-prefetchable) [size=256K]
I/O ports at e000 [size=256]
Expansion ROM at f7d40000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
02:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)
Subsystem: Samsung Electronics Co Ltd Device 4105
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at f7c00000 (64-bit, non-prefetchable) [size=512K]
Expansion ROM at f7c80000 [disabled] [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath9k
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
Subsystem: Samsung Electronics Co Ltd Device c706
Flags: bus master, fast devsel, latency 0, IRQ 44
I/O ports at d000 [size=256]
Memory at f0004000 (64-bit, prefetchable) [size=4K]
Memory at f0000000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Obrigado pela ajuda antecipadamente!