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笔记本cpu性能评测T61显卡nVIDIA Quadro NVS 140M 性能参考NVS,140M,性能参考,笔记本,CPU,性能评测,T61,t61,nvs,140m
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笔记本cpu性能评测T61显卡nVIDIA Quadro NVS 140M 性能参考
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3秒自动关闭窗口From ThinkWiki
The nVIDIA Quadro NVS 140M is a mobile video card with a G86 core and 128MB dedicated graphics memory (512MB shared).
Chipset: nVIDIA Quadro NVS 140M
01:00.0 VGA compatible controller: nVidia Corporation Unknown device 0429 (rev a1) (prog-if 00 [VGA])
Subsystem: Lenovo Unknown device 20d8
Flags: bus master, fast devsel, latency 0, IRQ 169
Memory at d-bit, non-prefetchable) [size=16M]
Memory at e-bit, prefetchable) [size=256M]
Memory at d-bit, non-prefetchable) [size=32M]
I/O ports at 2000 [size=128]
Capabilities: [60] Power Management version 2
Capabilities: [68] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Capabilities: [78] Express Endpoint IRQ 0
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting
Capabilities: [600] Unknown (11)
PCI Express 16×
128MB dedicated (512MB shared) video memory
Default X.Org NVidia driver, called "nv" works.
On an R61 running OpenSUSE 10.3, the nv driver locks up the machine hard. -- 14:39, 26 March 2008 (CET)
On an R61 running Fedora Core 9, the nv driver fails to turn the backlight on after resuming from a suspend to RAM.
I fixed this by using the proprietary NVIDIA Linux drivers (v177.82)
Support for Quadro NVS 140M has been introduced in the NVIDIA Linux unified driver version 100.14.09 (released on 8 June 2007). For the latest drivers go to the . Note that NVIDIA proprietary drivers do not work with a Xen virtualized kernel.
Since it has a G86 core,
works on this video card, even though not being listed in the CUDA manuals. Running very large problems (like the SDK examples) however might fail by running out of the relatively small graphics memory.
There has been an issue with Brightness Control on T61/R61s. This seems to be fixed with the 169.04 BETA drivers from Nvidia. You can find them i.e. here . You might also need the latest BIOS ( 1.26) as well as the latest version of
(thinkpad-acpi, V0.18).
If the nvidia module is loaded with the argument NVreg_EnableBrightnessControl=1, one can switch to a virtual console, change the lcd brightness level there, and have that level preserved after switching back to the X session. On a , this was tested with the acpi video driver included in the vanilla Linux 2.6.21-6 kernel and on an
The nVidia Quadro NVS 140m, as well as some other newer cards, automatically clock down to save power and stay cool. This can be a nuisance when running a compositing window manager, such as Compiz Fusion - animations will appear to start jerkily, and smoothen out after a second or so once the GPU clocks up. One workaround is to disable automatic power management of the GPU. To do so, add the line
options nvidia NVreg_RegistryDwords="PerfLevelSrc=0x2222"
to either /etc/modprobe.conf or a (new) file in /etc/modprobe.d
Be warned, that this might cause excessive heat generation and/or premature death of the GPU. It should be safer than overclocking, though.
Compiz requires a few options to be passed to it, in order to run quickly and reliably. Not using these options can result in anything ranging from general slowness to graphics corruption, depending on the driver version. At the time of writing, the 180.18 beta drivers were used. Below are the relevant parts of a working Compiz startup script:
export LIBGL_ALWAYS_INDIRECT=1
nice --adjustment=-5 compiz ccp --indirect-rendering --loose-binding --sm-disable --replace
With these options and the above RegistryDwords, Compiz, videos and OpenGL apps run without any noticable delays or glitches. Note, though, that because of the way X, Compiz, GTK and QT handle memory allocation, window resizing using the 'normal' mode is nigh-on unusable.