Intel and nVidia at the same time, with OpenGL

Hi all,
I'd like to set up a multi-seat Xorg config, with the onboard Intel video powering three monitors connected to that card, and an nVidia card powering two monitors connected to it.
This seems straightforward enough to configure in the Xorg config which I have done, but when the time comes to install the "nvidia" package, it conflicts with the Intel driver. Specifically I can't have mesa-libgl (Intel) and nvidia-libgl installed at the same time.
I guess this is fair enough as they both want to become the default GL driver, but in my case the actual GL driver will depend on which seat is being used - sitting at the Intel monitors the GL driver should be Intel, and sitting at the nVidia monitors it should be the nvidia GL driver.
Is there a way to install both drivers at the same time, and specify which libGL to use by e.g. changing the library search path?
I have looked at Bumblebee but it seems aimed at duplicating displays across to the other video card, whereas I want the displays to appear on directly attached hardware.

Short answer: No.
Long answer: Arch wiki NVIDIA (replace nouveau with the intel driver package).
They do not work at the same time, however.

Similar Messages

Reading and recording at the same time with AudioUnit

Hi,
I am trying to read and record at the same time on the iPhone with AudioUnit. For the reading part I made an AUGraph which works fine, constructed like that:
NewAUGraph(&_graph);
_outputUnitComponentDescription.componentType = kAudioUnitType_Output;
_outputUnitComponentDescription.componentSubType = kAudioUnitSubType_RemoteIO;
_outputUnitComponentDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
_outputUnitComponentDescription.componentFlags = 0;
_outputUnitComponentDescription.componentFlagsMask = 0;
AUGraphAddNode(_graph, &_outputUnitComponentDescription, &_outputNode);
_mixerUnitComponentDescription.componentType = kAudioUnitType_Mixer;
_mixerUnitComponentDescription.componentSubType = kAudioUnitSubType_MultiChannelMixer;
_mixerUnitComponentDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
_mixerUnitComponentDescription.componentFlags = 0;
_mixerUnitComponentDescription.componentFlagsMask = 0;
AUGraphAddNode(_graph, &_mixerUnitComponentDescription, &_mixerNode);
AUGraphConnectNodeInput(_graph, _mixerNode, 0, _outputNode, 0);
AUGraphOpen(_graph);
AUGraphNodeInfo(_graph, _outputNode, NULL, &_outputUnit);
AUGraphNodeInfo(_graph, _mixerNode, NULL, &_mixerUnit);
_generatorUnitComponentDescription.componentType = kAudioUnitType_MusicDevice;
_generatorUnitComponentDescription.componentSubType = kAudioUnitSubType_RemoteIO;
_generatorUnitComponentDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
_generatorUnitComponentDescription.componentFlags = 0;
_generatorUnitComponentDescription.componentFlagsMask = 0;
for(int i=0; i< [_urlList count]; i++)
SoundBuffer* soundBufferTemp = [_bufferSoundList objectAtIndex:i];
AURenderCallbackStruct renderCallbackStruct;
renderCallbackStruct.inputProc = MyFileRenderCallback;
renderCallbackStruct.inputProcRefCon = soundBufferTemp;
AudioStreamBasicDescription* inputAsbd = [soundBufferTemp getASBD];
err = AudioUnitSetProperty(_mixerUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
i,
inputAsbd,
sizeof(AudioStreamBasicDescription));
UInt32 zero = 0;
err = AudioUnitSetProperty(_mixerUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
kInputBus,
&zero,
sizeof(zero));
err = AUGraphSetNodeInputCallback(_graph,
_mixerNode,
i,
&renderCallbackStruct);
This works well, for the recording AudioUnit I did the following:
OSStatus err;
AudioComponentDescription audioComponentDescription;
AudioComponent audioComponent;
audioComponentDescription.componentType = kAudioUnitType_Output;
audioComponentDescription.componentSubType = kAudioUnitSubType_RemoteIO;
audioComponentDescription.componentManufacturer = kAudioUnitManufacturer_Apple;
audioComponentDescription.componentFlags = 0;
audioComponentDescription.componentFlagsMask = 0;
audioComponent = AudioComponentFindNext(NULL, &audioComponentDescription);
err = AudioComponentInstanceNew(audioComponent, &_audioUnit);
UInt32 size;
size = sizeof(AudioStreamBasicDescription);
err = AudioUnitGetProperty(_audioUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
1,
&_soundFileDataFormat,
&size);
_soundFileDataFormat.mSampleRate = 44100.00;
AudioUnitSetProperty(_audioUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input,
kInputBus,
&_soundFileDataFormat,
size);
AudioUnitSetProperty(_audioUnit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Output,
kOutputBus,
&_soundFileDataFormat,
size);
AURenderCallbackStruct renderCallbackStruct;
renderCallbackStruct.inputProc = MyRecorderCallback;
renderCallbackStruct.inputProcRefCon = self;
UInt32 one = 1;
UInt32 zero = 0;
err = AudioUnitSetProperty(_audioUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Input,
kInputBus,
&one,
sizeof(one));
err = AudioUnitSetProperty(_audioUnit,
kAudioOutputUnitProperty_EnableIO,
kAudioUnitScope_Output,
kOutputBus,
&zero,
sizeof(zero));
err = AudioUnitSetProperty (_audioUnit,
kAudioOutputUnitProperty_SetInputCallback,
kAudioUnitScope_Global,
0,
&renderCallbackStruct,
sizeof(AURenderCallbackStruct));
err = AudioUnitInitialize(_audioUnit);
Then in I setup a file to write in:
- (void) openFile
OSStatus err;
err = ExtAudioFileCreateWithURL((CFURLRef) _soundFileUrl,
kAudioFileCAFType,
&_soundFileDataFormat,
NULL,
kAudioFileFlags_EraseFile,
&_extAudioFileRef);
err = ExtAudioFileSetProperty(_extAudioFileRef,
kExtAudioFileProperty_ClientDataFormat,
sizeof(AudioStreamBasicDescription),
&_soundFileDataFormat);
err = ExtAudioFileWriteAsync(_extAudioFileRef,
0,
NULL);
All this things works well (I check by printing err in the log which I removed here for clarity).
And then in the callback for recording I do the following:
static OSStatus MyRecorderCallback(void *inRefCon,
AudioUnitRenderActionFlags* inActionFlags,
const AudioTimeStamp* inTimeStamp,
UInt32 inBusNumber,
UInt32 inNumFrames,
AudioBufferList* ioData)
OSStatus err= noErr;
AudioUnitRecorder* auRec = (AudioUnitRecorder*) inRefCon;
[auRec allocateAudioBufferList:1 size:inNumFrames*4];
err = AudioUnitRender(auRec.audioUnit,
inActionFlags,
inTimeStamp,
inBusNumber,
inNumFrames,
auRec.audioBufferList);
err = ExtAudioFileWriteAsync(auRec.extAudioFileRef,
inNumFrames,
auRec.audioBufferList);
return err;
(Then I close the file after recording at the same time I close the AudioUnit)
Now the strange thing is that all this works perfectly well in the simulator: I can record and play at the same time but on the device, the callback for recording is not ran (I check by trying to print something in the log in the callback function.) which men no writing in the file and an empty file in the end.
Any one has any idea of what could be causing this?
Thanks
Alexandre

Just in case some one might need it, I solved my problem:
I simply needed to initialize the AudioSession before playing/recording. I did so with the following code:
OSStatus err;
AudioSessionInitialize(NULL, NULL, MyInterruptionListener, self);
UInt32 sessionCategory = kAudioSessionCategory_PlayAndRecord;
err = AudioSessionSetProperty (kAudioSessionProperty_AudioCategory,
sizeof (sessionCategory),
&sessionCategory);
AudioSessionSetActive(TRUE);

Pr Premier monthly Cloud subscription open CS6 and CC at the same time with one subscription?

I download both CS6 and CC version.
I have a subscription for montly Premier Pro, but open just a CC version and not a CS6
WHY??
Do i need a second subscription for the same program??

Thanks!
But as the CC version opens, the CS6 version does not open and says it has expired.
Do I have miss to set something?

Capter and edit at the same time

Can I capture and edit at the same time with cs4, Also can i export to dvd or to tape and edit at the same time?
Sebastian

No.

Ringing and vibrating at the same time

Is there a way to set my iPhone 3 so that it will ring and vibrate at the same time with an incoming call?

Go to Settings > Sounds > Vibrate On.

Problem with audio of my notebook. Audio works through pc speakers and earphones at the same time

Hi all,
thanks in advance for your advices.
I have a problem with my notebook (HP pavilion g6 2305 sl).
The problem is that when I connect my earphones the audio of my pc don't stop, hence I can hear (music, film, ...) both by earphones and speakers at the same time.
I tried to install again the latest driver audio, but nothing was changed.
I tried to use another pair of earphones, but nothing.
I have noted that if I connect the Jack at my pc, but not until the end, the audio stops from the speakers and goes through the earphones, but only if the jack is not completly inserted in the notebook.
I read a lot of forum on the web but I'm not able to find a solution for my problem.
(ps. the problem comes out suddenly, without any signal. I don't have installed any update or new software before the problem's start)

Right click on speaker icon, lower right screen.
Choose playback devices.
Select "speakers and headphones" as your default.
Disable "communications headphones".

Several of us have a iPhone 6s and are having trouble with hearing and speaking at the same time when using the phone. ? The speakers seem to be too far apart? Are others having this issue? Solutions?

Several of us have a iPhone 6plus and are having trouble with hearing and speaking at the same time when using the phone. ? The speakers seem to be too far apart? Are others having this issue? Solutions?

Not having the problem, don't personally know anyone who is.

[Solved] Sound with ALSA and PulseAudio at the same time?

Hi, I am using arch linux to play Counter Strike on.
While it works fine and all, I just don't get any sound in CS because I am using Mangler, which only seems to work with my microphone if I use PulseAudio.
I hope this is a rather simple issue, basicly, I just want to enable sound in PulseAudio and ALSA at the same time, is this possible?
Last edited by Paaskehare (2010-08-12 15:39:09)

I have read that PulseAudio decreases sound quality, and therefore I would not like to use this as a systemwide driver, but rather only where it is needed.
Please correct me if I am wrong
Edit:
Ok, sound quality isn't noticeably worse, so this will do. HOWEVER, while I am in Counter Strike my sound is delayed by ~1 second, and it is therefore useless, any thoughts on that matter?
Edit again .. Solved this time:
I set my ALSA plugin in winecfg to "Hardware Acceleration: Emulation" - that seemed to do the trick.
Last edited by Paaskehare (2010-08-12 15:38:56)

When i hold down command and r at the same time after restarting it comes up with a

When i hold down command and r at the same time after restarting it comes up with a black screen and a lock symbol and a field bellow where you would input a password, i have tried ALL of my possible passwords including my password i use for the mac and it stil will not work! all that happens is the text i put in bellow erases itself after hiting enter or clicking the arrow.

I've tried my apple ID password and that doesn't work either . I don't recall seting a password for an encrypted disk either :/ if it was for an encrypted disk, would it be in keychain anywhere? if so how can i find it?
Thanks!

My ipod has a black screen. I have tried to hold the sleep/off button and menu button at the same time with no luck. I connected to my computer and tried restore on itunes - still with a black screen a voice said "screen locked' code 542

My ipod has a black screen. I have tried to hold the sleep/off button and menu button at the same time with no luck. I connected to my computer and tried restore on itunes - still with a black screen a voice said "screen locked' code 542

Is the iPad charged? Plug it in with the charger/wall outlet for half an hour and try again to reboot by holding both the power and home buttons until the apple logo appears.

Acquire Analog and Digital inputs at the same time with 6025E card

I have 6025E DAQ card, all the analog channels are used
up. There are several digital signals, such as flowmeter. Can I acquire both kinds of data at the same time with my 6025E card? Thanks for your help.

I suggest you search the examples that ship with LV
Digital
Find Examples>>>Hardware Input and Output>>>Digital Input and Output>>>8255
for doing each type of I/O seperately.
When you have found two examples. Just try to run the two at the rate use need in your final app.
Post follow-ups Q's here. I am not personally familiar with that deveice so I can not speak from experience.
I would generally expect that if you sample rate is low (i.e. <10Hz) you maybe happy with the results. If you want to run faster or have the PC do something else at the same time, the timing of the signals form the DIO lines may be suspect.
So...
It depends.
Trying to help,
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

Can I record video and line in mixer at the same time with iPod touch?

Can I record video and line in mixer audio at the same time, with the iPod touch?

What is a "line in imxer audio" You can use an externeral mic plugged into the headphone jack to record auid for a video using the 4G iPod's camera.

Can I use HP Pro 8600 with usb and wireless at the same time

Can I use HP Pro 8600 with usb and wireless at the same time? Sometimes I cannot get the wireless to work, it seems to be my laptop. It would be nice if I could use the usb, but it doesn't work. What should / can I do, if anything?
Sam

Hi,
Same physical printer but when connecting to SAME computer using both USB and wireless it becomes two (logical) printers. Probably your default prnter is the wireless one, you have to select the right printer before print .
Regards.
BH
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

16 channels of audio recording at the same time with a MAC BOOK?

Hi,
I want to know how many channels of audio I can record at the same-time with a MAC BOOK (2.16GHz Intel Core 2 Duo, 1GB memory 120GB hard drive, Double-layer SuperDrive), firewire audio device and Logic Pro 8?
You see I am aiming to record a live gig and I want to come into a firewire recording interface with 16 channels of audio all at the same time (24-bit, 44Khz) Does anyone know if this is possible? Or am I looking for trouble? No plug-ins will be used just record straight in. Anyone have some experience with this?
Thanks.

Ok, like this:
Macbook - FW Port - FW Cable -In- MOTU Traveler -Out- External Harddrive.
Firewire is capable of chaining units.
Also plugged into your motu traveler will be an optical cable coming from the ADA.
This will carry the 8 channels of audio it outputs.
Also another good thing to do is to also have an optical cable FROM the optical output of your Traveler into the Behringer's input.
That way you can sync the Behringer's digital clock to that of the Traveler, giving you a slightly better sounding signal that if you were to sync the traveler to the Behringer. This is simply because the traveler has a better quality digital clock than the Behringer unit so it's best to use that. To do this you just select "Adat input" on the back of the Behringer, and leave the Travelers sync to "Internal Clock". It is only a very very slight difference and you may not be able to notice the difference but for the cost of an optical cable it's worth doing.
It will all make a lot more sense when you have the two units and the harddrive all plugged in.

Why can't I run Safari and Skype at the same time without making my computer freeze up?

I can't believe I can't run Safari and Skype at the same time without my computer freezing up, it's a MacBook Pro with Mac OS 10.6.8 and it has an Intel Core 2 Duo CPU with 2.2 Ghz and 2 Gb of RAM. Is this a hardware problem or a software problem?

I haven't gone to the trouble of actually testing to see which uses more CPU power, but Firefox has been faster than Safari on every Mac I've ever owned.
To see CPU usage by process, open the terminal (in Utilities) and enter 'top' at the command line. You might have to expand the window as processes don't appear in any logical order.
It could also be hardware-related: I have late 2009 mini with similar specs and it pinwheels easily.

Intel and nVidia at the same time, with OpenGL

Similar Messages

Maybe you are looking for