当我打开 Alienware M17X 的电源时,它的屏幕仍然黑着。启动时,屏幕会发光,但仍然黑着。我看不到 Alienware 徽标、BIOS 或 GRUB,但它之前一直运行良好。我使用 Windows 7 和 Debian 8 双启动。
的输出$ lspci | grep -E "VGA|3D"
是:
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GTX 660M] (rev a1)
我猜是显卡的问题。我用 VGA 线连接了一个屏幕,工作正常。电脑检测到了两个屏幕(一个是正在工作的外置屏幕,另一个是无法工作的内置屏幕)。
首先输出的# lspci -v -s 00:02.0
是:
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GTX 660M] (rev ff) (prog-if ff)
!!! Unknown header type 7f
我执行了# modprobe nvidia
,然后重新运行 lspci 命令:
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GTX 660M] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell Device 0551
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at d0000000 (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 d1000000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [b4] Vendor Specific Information: Len=14 <?>
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting <?>
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Capabilities: [900] #19
Kernel driver in use: nvidia
在我 modprobe nvidia 之前,sudo lshw -c video
只检测到了英特尔芯片组。现在,它可以同时检测到两者:
*-display
description: VGA compatible controller
produit: GK107M [GeForce GTX 660M]
fabriquant: NVIDIA Corporation
identifiant matériel: 0
information bus: pci@0000:01:00.0
version: a1
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
ressources: irq:16 mémoire:d0000000-d0ffffff mémoire:a0000000-afffffff mémoire:b0000000-b1ffffff portE/S:3000(taille=128) mémoire:d1000000-d107ffff
*-display
description: VGA compatible controller
produit: 3rd Gen Core processor Graphics Controller
fabriquant: Intel Corporation
identifiant matériel: 2
information bus: pci@0000:00:02.0
version: 09
bits: 64 bits
horloge: 33MHz
fonctionnalités: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
ressources: irq:30 mémoire:d2000000-d23fffff mémoire:c0000000-cfffffff portE/S:4000(taille=64)
但是,屏幕仍然黑屏。我有一段时间遇到 modprobe bad line 问题,但之前它并没有对屏幕造成任何问题。我尝试了内置自检(内建自测试系统),所有颜色都显示出来。第一次之后,我可以成功启动,但在使用过程中它崩溃了。然后屏幕像以前一样没有显示视频。这台电脑已经四年了。我不知道是液晶屏还是显卡有问题。