I have a Dell PowerEdge T430 running Fedora 25. It comes per default only with onboard graphics (which allows only a resolution of 1024x768 (at least I was not able to get any drivers running) and is insufficient for some applications that produce graphical output).
I bought a Geforce210 graphics card and plugged it in but how do I tell Fedora to use it instead of the onboard graphics?
Pretty sure you need to do this in the system's own System Setup ("BIOS configuration") — go to the Integrated Devices section and switch Embedded Video Controller to Disabled. I don't think there is any support for multiple video controllers to be active at the same time.
Related
I have a USB audio device (Scarlett Focusrite 18i6) which does not require a driver, so I assume it uses the USB HID Audio Class standard.
It works on everything from Windows and Mac to Linux and iOS.
But on Mac and Windows, it has a control application which can for instance enable and disable direct monitoring.
How would I go about reverse-engineering how this is done, so that I can reproduce it on platforms where the control application does not exist?
I'm thinking of booting up Windows in a VMWare session and then logging the USB communication (somehow?) while using the control application, but it does sound tedious considering the amount of data and my very limited understanding of USB.
Any other suggestions?
You could try running the control application using Wine instead of reverse engineering it. However, if it's accessing USB devices then there is a good chance it might be using an API not supported by Wine.
To reverse engineer it, you should find a way to look at the USB traffic between the computer and the device. Total Phase has some hardware USB protocol analyzers, but you might be able to find a good software solution for free.
I have some starter kit board based on Atmel ARM926 400MH. Powered by linux.
And I need to control power of USB, i.e. switch it off and switch it off.
I try to research for use sysfs, but there is no information about switching on/off.
You either can’t control USB power, or the OS will control it for you. As noted in this comment, “... users shouldn't be conscious of this layer.”
Port power might be hardwired to be always present, but more often hardware allows control by the driver. One example I’ve seen, host port through a 3320 USB PHY should have port power automatically enabled by CPEN output.
This area was enhanced with runtime power management framework introduced in 2.6.32 kernel. Details can depend on SoC and specific board support. New features can allow user space control to prevent auto suspend and resulting powerdown; otherwise, by default, USB should power down in suspend modes.
Lots more info in Regupathy.
I have a dell desktop pc which has an integrated gpu.
If I add one more gpu over PCIe will I be able to run cuda? Probably yes.
The integrated gpu has its own driver (i915) and I am not sure what will happen with nvidia driver (for the second gpu) alongside.
Is there a special procedure, something to take into account?
edit: forgot to mention that OS is Ubuntu 11.10. sorry
Thanks in advance
UPDATE:
finally there is a problem. I just put the video card gtx 460. I want to have the display on integrated card so as to use the "good" card dedicated to computing. but if i dont plug the monitor cable to gtx I get the following message
System halted! Attention: Unsupported Video Configuration Detected
Action is Required
This computer has an add-in graphics card, but the monitor is plugged
into the integrated video connector. To attach the monitor cable to
the add-in graphics card:
Shut down the computer
Plug the monitor cable into the add-in graphics card connector. This may require a video adapter or video adapter cable. (provided
with the system)
Turn on the computer.
This message should not appear after completing these steps. For more
information or help, please refer to the system documentation.
Please help.
CUDA only supports NVidia GPUs so it won't even see the embedded intel one.
The CUDA startup functions also return the type and capabilities of all the CUDA devices found so you can pick which device to run a task on.
ps. You might want to manually set the app to 'use enhanced/performance graphics' in windows explorer->properties - we have had issues in laptops with Intel+Nvidia optima systems where the app doesn't see the Nvidia GPU by default for some reason
I'm running the Windows Phone 7 dev tools on an older MacBook Pro, with an NVIDIA GeForce 9400M graphics card with 256MB of memory (not sure if it is shared or not) and I get lots of stuttering in the animations on the emulator, even simple ones, so I assume that it's not using my graphics hardware. The framerate counters are always at something like 002 or 003 (and red).
According to this post on the Windows Phone forums, these are the requirements:
"DirectX 10 capable card with a WDDM
1.1 driver is needed to take advantage of GPU acceleration on the Windows
Phone Emulator for a Silverlight® application"
From running DxDiag, my card supports DirectX 10 and WDDM 1.1, I've installed the latest download of the tools from create.msdn.com, and the latest drivers from NVIDIA.
This is happening on a clean install of Windows 7.
I was able to run an empty XNA Windows Phone game without the error message mentioned here, so maybe it is using hardware acceleration after all, but the normal Silverlight stuff is really jerky.
What can I do to get the emulator graphics to run at a decent speed?
You should check this post
I'm looking for a development board for WinCE, preferably with the following connectors:
VGA/DVI for screen
USB for kb/mouse
Ethernet (10Mbit is OK, 100 would be even better ;-) )
Storage (eg: SD/MMC/CF cards)
I'm looking for this, because I want to attend the Imagine Cup , Embedded Systems design. And I'm looking for a challenge, ofcourse ;-).
I found a board called HawkBoard (http://www.hawkboard.org), but I want to know if there are alternatives for about the same price (max $200 incl. shipping/customs/taxes). I need the BSP, ofcourse ;-).
Thanks!
Yvan
The eBox 2300/3300 is a low cost device that has been used for past Imagine Cup challenges. It's x86, comes with a BSP, is in an enclosure, is low cost ($195 or $255) and meets most of your needs.
Of course CE has forever shipped with a reference BSP for x86, so you can usually get just about any x86 device working, though most other devices tend to be pretty big physically.
There are also open source CE BSPs available for the BeagleBoard and GumStix.
The BeagleBoard is a good ARM system that costs $150. It has all the features you want, from the product page:
DVI-D for connecting digital computer monitors
Compatibility with a huge collection of USB peripherals including hubs, keyboards, mice, WiFi, Bluetooth, web cameras, and much more
MMC+/SD/SDIO interface for memory or wireless connectivity
S-Video out for connecting your NTSC or PAL television or wearable visor
Stereo audio in and out for a microphone and headphones or speakers
Power via typical USB chargers for cell phones from your laptop, from an automobile adapter, from batteries, or even from a solar backpack
I never tried Windows CE myself, but a google search suggests it's possible, and there's even a video on YouTube.
Another option is Gumstix, and there's a project on codeplex to help you get Windows CE on it.
I guess it also depends if you want to start something for fun or rather serious.
Check some of the big manufacturers homepages too, so you can see what specifications could
help the realisation of your ideas or set limits to them.
What helps for shure is if you choose a platform, that can be configured easily and its much more fun if you start with something that can work out of the box too.
Here an example, like you can find it on a lot of manufactureres homepages on the web.
http://www.toradex.com/En/Products/Colibri
Colibri modules feature state of the art technology, and aimed at low power systems that require high CPU performance. They are equipped withall the interfaces needed in a modern embedded device.
Colibri T20 features include:
· Dual Core ARM Cortex A9 Processor
· 2 x 1.0GHz Processor Speed
· Full HD 1080p Video (Encode / Decode)
· Powerful 3D Rendering Performance
· True Dual Display
· Up to 12 Megapixel Camera Sensor Support
And if this is to much there are Colibri modules in the family which are in a lower price range with adapted specifications that might fit you needs better.
What I personally think is important, that you know that you can get good support and talk to the right people in person as well.
Give it a shot and good luck.
Regards
Any old PC that has a video adapter that is VESA compliant and a network adapter based on NE2000, realtek RTL8139 or 3COm 3Cx5 can be used as Windows CE target device using the CEPC BSP.
If you have an old 486 or more powerful PC lying unused somewhere in your garage, it's time to resurrect it! :)