我可以得到杜比连接到我的电脑，但没有 HDMI 输出（我们的数字化转型无论如何）在联想 G560 上
xrandr：
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767
LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.0*+
1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
lspci -v：
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
Subsystem: Lenovo Device 391e
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 3920
Flags: bus master, fast devsel, latency 0, IRQ 41
Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5050 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
Subsystem: Lenovo Device 38a5
Flags: bus master, fast devsel, latency 0, IRQ 43
Memory at d8406100 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) (prog-if 20 [EHCI])
Subsystem: Lenovo Device 38aa
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at d8405c00 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
Subsystem: Lenovo Device 38af
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at d8400000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=04, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: d7400000-d83fffff
Prefetchable memory behind bridge: 00000000d0400000-00000000d13fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: d6400000-d73fffff
Prefetchable memory behind bridge: 00000000d1400000-00000000d23fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: d5400000-d63fffff
Prefetchable memory behind bridge: 00000000d2400000-00000000d33fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=07, subordinate=0a, sec-latency=0
I/O behind bridge: 00001000-00001fff
Memory behind bridge: d4400000-d53fffff
Prefetchable memory behind bridge: 00000000d3400000-00000000d43fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) (prog-if 20 [EHCI])
Subsystem: Lenovo Device 38b8
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at d8405800 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=32
Capabilities: <access denied>
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)
Subsystem: Lenovo Device 38be
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo Device 38c1
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 42
I/O ports at 5048 [size=8]
I/O ports at 505c [size=4]
I/O ports at 5040 [size=8]
I/O ports at 5058 [size=4]
I/O ports at 5020 [size=32]
Memory at d8405000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
Subsystem: Lenovo Device 38bf
Flags: medium devsel, IRQ 10
Memory at d8406000 (64-bit, non-prefetchable) [size=256]
I/O ports at 5000 [size=32]
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)
Subsystem: Lenovo Device 38c0
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at d8404000 (64-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
05:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
Subsystem: Lenovo Device 30a1
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at d6400000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath9k
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
Subsystem: Lenovo Device 392e
Flags: bus master, fast devsel, latency 0, IRQ 40
I/O ports at 2000 [size=256]
Memory at d2410000 (64-bit, prefetchable) [size=4K]
Memory at d2400000 (64-bit, prefetchable) [size=64K]
Expansion ROM at d2420000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: r8169
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
Subsystem: Lenovo Device 392b
Flags: bus master, fast devsel, latency 0
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
Subsystem: Lenovo Device 392b
Flags: bus master, fast devsel, latency 0
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
Subsystem: Lenovo Device 392b
Flags: bus master, fast devsel, latency 0
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)
Subsystem: Lenovo Device 392b
Flags: bus master, fast devsel, latency 0
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
Subsystem: Lenovo Device 392b
Flags: bus master, fast devsel, latency 0
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
Subsystem: Lenovo Device 392b
Flags: bus master, fast devsel, latency 0