laptop lenovo idéia pad u430p, Linux Mint 16. Como eu disse no título, ocasionalmente gráficos congelam enquanto todos os outros sistemas continuam a funcionar normalmente (música toca, por exemplo). Às vezes, ele descongela depois de um minuto ou mais, às vezes não e eu tive que redefinir a máquina.
lspci -v
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 3800
Flags: bus master, fast devsel, latency 0, IRQ 64
Memory at b5000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 6000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
00:03.0 Audio device: Intel Corporation Device 0a0c (rev 09)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 68
Memory at b5610000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Kernel driver in use: snd_hda_intel
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04) (prog-if 30 [XHCI])
Subsystem: Lenovo Device 3978
Flags: bus master, medium devsel, latency 0, IRQ 60
Memory at b5600000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [70] Power Management version 2
Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 65
Memory at b5618000 (64-bit, non-prefetchable) [size=32]
Capabilities: [50] Power Management version 3
Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: mei_me
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 67
Memory at b5614000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 1 (rev e4) (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: 00005000-00005fff
Memory behind bridge: b5500000-b55fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Lenovo Device 3978
Capabilities: [a0] Power Management version 3
Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) (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: b5400000-b54fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Lenovo Device 3978
Capabilities: [a0] Power Management version 3
Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=08, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: b4000000-b4ffffff
Prefetchable memory behind bridge: 00000000b2000000-00000000b2ffffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Lenovo Device 3978
Capabilities: [a0] Power Management version 3
Kernel driver in use: pcieport
00:1c.4 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 5 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: b3000000-b3ffffff
Prefetchable memory behind bridge: 00000000a0000000-00000000b1ffffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Lenovo Device 3978
Capabilities: [a0] Power Management version 3
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Lenovo Device 3978
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at b561c000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
Subsystem: Lenovo Device 3978
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo Device 3978
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 61
I/O ports at 6088 [size=8]
I/O ports at 6094 [size=4]
I/O ports at 6080 [size=8]
I/O ports at 6090 [size=4]
I/O ports at 6060 [size=32]
Memory at b561b000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [70] Power Management version 3
Capabilities: [a8] SATA HBA v1.0
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
Subsystem: Lenovo Device 3978
Flags: medium devsel, IRQ 11
Memory at b5619000 (64-bit, non-prefetchable) [size=256]
I/O ports at 6040 [size=32]
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
Subsystem: Lenovo Device 3801
Flags: bus master, fast devsel, latency 0, IRQ 62
I/O ports at 5000 [size=256]
Memory at b5504000 (64-bit, non-prefetchable) [size=4K]
Memory at b5500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00
Capabilities: [170] Latency Tolerance Reporting
Capabilities: [178] #1e
Kernel driver in use: r8169
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)
Subsystem: Intel Corporation Wireless-N 7260
Flags: bus master, fast devsel, latency 0, IRQ 66
Memory at b5400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [40] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 0c-8b-fd-ff-ff-b4-c8-41
Capabilities: [14c] Latency Tolerance Reporting
Capabilities: [154] Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>
Kernel driver in use: iwlwifi
09:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 730M] (rev a1)
Subsystem: Lenovo Device 3800
Flags: bus master, fast devsel, latency 0, IRQ 63
Memory at b3000000 (32-bit, non-prefetchable) [size=16M]
Memory at a0000000 (64-bit, prefetchable) [size=256M]
Memory at b0000000 (64-bit, prefetchable) [size=32M]
I/O ports at 3000 [size=128]
Expansion ROM at <ignored> [disabled]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting <?>
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Kernel driver in use: nouveau
uname -a
Linux laptop 3.13.2-031302-generic #201402061638 SMP Thu Feb 6 21:39:32 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Eu tenho o driver nouveau instalado:
dmesg | grep nouveau
[ 1.690417] nouveau 0000:09:00.0: enabling device (0006 -> 0007)
[ 1.690747] nouveau [ DEVICE][0000:09:00.0] BOOT0 : 0x108100a1
[ 1.690749] nouveau [ DEVICE][0000:09:00.0] Chipset: GK208 (NV108)
[ 1.690750] nouveau [ DEVICE][0000:09:00.0] Family : NVE0
[ 1.692604] nouveau [ VBIOS][0000:09:00.0] checking PRAMIN for image...
[ 1.693697] nouveau [ VBIOS][0000:09:00.0] ... signature not found
[ 1.693700] nouveau [ VBIOS][0000:09:00.0] checking PROM for image...
[ 1.693771] nouveau [ VBIOS][0000:09:00.0] ... signature not found
[ 1.693773] nouveau [ VBIOS][0000:09:00.0] checking ACPI for image...
[ 2.426007] nouveau [ VBIOS][0000:09:00.0] ... appears to be valid
[ 2.426012] nouveau [ VBIOS][0000:09:00.0] using image from ACPI
[ 2.426139] nouveau [ VBIOS][0000:09:00.0] BIT signature found
[ 2.426143] nouveau [ VBIOS][0000:09:00.0] version 80.28.25.00.25
[ 2.426612] nouveau [ DEVINIT][0000:09:00.0] adaptor not initialised
[ 2.426615] nouveau [ VBIOS][0000:09:00.0] running init tables
[ 2.489085] nouveau 0000:09:00.0: irq 63 for MSI/MSI-X
[ 2.489095] nouveau [ PMC][0000:09:00.0] MSI interrupts enabled
[ 2.489134] nouveau [ PFB][0000:09:00.0] RAM type: DDR3
[ 2.489136] nouveau [ PFB][0000:09:00.0] RAM size: 2048 MiB
[ 2.489138] nouveau [ PFB][0000:09:00.0] ZCOMP: 0 tags
[ 2.489204] nouveau E[ PIBUS][0000:09:00.0] GPC0: 0x4188ac 0x00000001 (0x1c70822e)
[ 2.493775] nouveau [ VOLT][0000:09:00.0] GPU voltage: 600000uv
[ 2.516824] nouveau [ PTHERM][0000:09:00.0] FAN control: none / external
[ 2.516829] nouveau [ PTHERM][0000:09:00.0] fan management: automatic
[ 2.516831] nouveau [ PTHERM][0000:09:00.0] internal sensor: yes
[ 2.516856] nouveau [ CLK][0000:09:00.0] 07: core 405 MHz memory 405 MHz
[ 2.516900] nouveau [ CLK][0000:09:00.0] 0a: core 405-875 MHz memory 810 MHz
[ 2.516958] nouveau [ CLK][0000:09:00.0] 0f: core 405-875 MHz memory 1001 MHz
[ 2.517040] nouveau [ CLK][0000:09:00.0] --: core 405 MHz memory 405 MHz
[ 2.517150] nouveau [ DRM] VRAM: 2048 MiB
[ 2.517151] nouveau [ DRM] GART: 1048576 MiB
[ 2.517164] nouveau E[ DRM] Pointer to TMDS table invalid
[ 2.517797] nouveau [ DRM] DCB version 4.0
[ 2.517798] nouveau E[ DRM] Pointer to flat panel table invalid
[ 2.518615] nouveau [ DRM] ACPI backlight interface available, not registering our own
[ 2.518666] [drm] Initialized nouveau 1.1.1 20120801 for 0000:09:00.0 on minor 0
[ 471.927416] nouveau E[ PIBUS][0000:09:00.0] GPC0: 0x4188ac 0x00000001 (0x1870822e)
O que posso fazer para investigar melhor o problema?