Quote:
Originally Posted by IsaacKuo
Since the notebook's internal screen has 1024x768 resolution, I'm betting this is a very old laptop and the external monitor connection is VGA.
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It is a very old laptop.
Quote:
Originally Posted by IsaacKuo
Could you post the output of the following:
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# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
1024x768 61.00*
800x600 61.00
640x480 60.00
# lspci
00:00.0 RAM memory: NVIDIA Corporation MCP67 Memory Controller (rev a2)
00:01.0 ISA bridge: NVIDIA Corporation MCP67 ISA Bridge (rev a2)
00:01.1 SMBus: NVIDIA Corporation MCP67 SMBus (rev a2)
00:01.2 RAM memory: NVIDIA Corporation MCP67 Memory Controller (rev a2)
00:01.3 Co-processor: NVIDIA Corporation MCP67 Co-processor (rev a2)
00:02.0 USB controller: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller (rev a2)
00:02.1 USB controller: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller (rev a2)
00:04.0 USB controller: NVIDIA Corporation MCP67 OHCI USB 1.1 Controller (rev a2)
00:04.1 USB controller: NVIDIA Corporation MCP67 EHCI USB 2.0 Controller (rev a2)
00:06.0 IDE interface: NVIDIA Corporation MCP67 IDE Controller (rev a1)
00:07.0 Audio device: NVIDIA Corporation MCP67 High Definition Audio (rev a1)
00:08.0 PCI bridge: NVIDIA Corporation MCP67 PCI Bridge (rev a2)
00:09.0 IDE interface: NVIDIA Corporation MCP67 AHCI Controller (rev a2)
00:0a.0 Ethernet controller: NVIDIA Corporation MCP67 Ethernet (rev a2)
00:0c.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2)
00:0d.0 PCI bridge: NVIDIA Corporation MCP67 PCI Express Bridge (rev a2)
00:12.0 VGA compatible controller: NVIDIA Corporation C67 [GeForce 7000M / nForce 610M] (rev a2)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
03:00.0 Ethernet controller: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01)
Quote:
Originally Posted by IsaacKuo
Normally, xrandr should list at least two outputs. But if there's only one output listed, then the proper video driver may need to be installed.
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What driver would that be?
Quote:
Originally Posted by IsaacKuo
My experience is that if the VGA monitor's native resolution isn't detected, it's possible to add the resolution by adding a modeline for the desired resolution. The code would look something like:
Code:
xrandr --newmode "1366x768custom" 85.5 1366 1494 1624 1798 768 770 776 795 -hsync +vsync
xrandr --addmode VGA-1 "1366x768custom"
You'll have to replace "VGA-1" with whatever xrandr tells you the relevant output is.
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But it seems to me that xrandr isn't telling me anything about that external VGA output.