best combination of loops?

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  Hi neebie.

  It is my first post in the forum. Is it possible to combine these to the loop as one?

  

  I would suspect sstongly would be done

  

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• Vst 5645r PXI gain / attenuation calibration chain RX TX

  Hello

  I work with PXI vst 5645r. I did some research using the RF output of the transmitter connected with the receiver RF input.

  In my application, it is important to know the equivalent mitigation and win I get (output of the DAC) generation up to the acquisition (input of the ADC) (loop gain).

  I looked at http://zone.ni.com/reference/en-XX/help/373680C-01/vstdevices/5645_analog_input/ and http://zone.ni.com/reference/en-XX/help/373680C-01/vstdevices/5645_analog_output/ in order to better understand how to build the structure of my channels.

  Whole, I looked in the drawing in labview how these parameters are controlled and value (example VST streaming (host)). I found only the configuration of gain for the transmitter in the 'LO_cal' block but I don't see no calculations for the various mitigations of transmitter. I have to check these datas for the transmitter.

  How are managed and put all these settings in the transmitter and the receiver normally?

  I guess that the receiver channel attenuates the signal in order to use the dynamic maximum range od a/d converters and use good power from receiver... calibration changes the values of gain/attenuation in the receiver string whenever I use a different gain (peak power dbm) of the issuer?

  Thanks in advance

  Best regards

  Giuseppe

  The reference level is a 'guide' for the driver VST set the attenuators and win as well as the range of the ADC/DAC are used at best.
  Depending on the frequency that you and the chosen reference level, the VST pilot will focus on the best combination of the mitigations

  and win to get the Signal arriving at the ADC to use his full range:
  You can see the calculations in this niRFRIO Group A Config 1.0.0 Shared Private.lvlibelect RF calibrated Gain.vi

  This Gain is 'Gain of frequency step-down converter' that summarize the entire path of Rf In.

  

  So practicall frequencies/Upconverter Gain step-down converter is the total analog gain that is put on the signal just before and after the ADC/DAC.
  This is done in the niRFRIO Group A Config 1.0.0 Shared Private.lvlibelect RF calibrated in Gain.vi.

  The discovery to Gain Index scan all possible power levels for this frequency and get the level closest to the chosen reference level.

  Whith this information, he knows what attenuators and win it must reach the power to get at its best at the ADC (input gain settings)

  

  So to calculate the loop gain, you must define a level of refeerence fix so that all mitigations and gain in the two paths of remain fixed, test it with a calibrated CW and then use this configuration for your DUT.

  When you read the QI of the VST (retrieve a single record) this information is passed to the function, so it can calculate the values of CDA and calibrated to their actual value on the RF In:

  

  If you calculate the gain of loop inside the FPGA, then he must send the information of step-down converter frequency/upconverter gain between the host and the FPGA. You can then use this information to calculate the loop gain.

  Best wishes

• Sequence of a good idea?

  After the search and read a few posts from forums, I understand using the sequence is probably not the best idea?

  I wanted to get some advice on the best way to address my problem.

  What I want to do:

  I intend to use the van der Pauw method and the hall effect to experimentally determine various parameters for a small sample of semiconductors.

  Right now, it's a lot of your time to make all of the BNC connections required by the hand that in all the totals to 24 or 48 connections to make.

  To speed up the process, I want to use Labview to control a microcontroller to control transistors which controls of the Tower relays who make the required connections. At the same time after each series of necessary connections have been made, a current source controlled by Labview must provide the necessary current, a voltmeter to read voltage. A total of six different sets of four connections to perform and voltage read for all six groups. This must be done twice, but since the equipment creating the magnetic field is controlled manually, I can just run the program twice.

  Recently, I learned how to control an arduino using labview and how to control the power source and the voltmeter using labview as well.

  So here's the sequence that labview should send orders:

  Digital I/o using 6-pin on arduino

  1. initially, all pins are attached below.

  2. first pin set high, while the rest remains low. This option turns on a transistor making it the first series of connections.

  3. the current source is turned on and provides a specified amount of current to the sample.

  4 voltmeter measures the induced voltage and stores this as a double or be it in something like a table.

  5 current source turns off.

  6. second pin on arduino set high, while the rest low and steps 3 through 5 are repeated until all 6 pressure measurements were recorded.

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  8. the same data could be transmitted to something like a different tab in the same program to perform the calculations to find the semiconductor, parameters of the sample.

  So now my question on the best way to do these things. I was looking through labview and found what is called a sequence of flat, but according to the forums it's supposed to be frowned upon.

  My other thoughts using some kind of combination of loops/case, but I'm not sure how to structure and what should be included or excluded from the loop. Other thoughts are maybe a timed structure. Another possibility is to create 6 different vi and calling it one by one.

  So basically the program run, and once completed, I need for each measure 6 voltage, preferably displayed in both a table and saved in excel/Notepad.

  SaintsFan says:

  So here's the sequence that labview should send orders:

  Digital I/o using 6-pin on arduino

  1. initially, all pins are attached below.

  2. first pin set high, while the rest remains low. This option turns on a transistor making it the first series of connections.

  3. the current source is turned on and provides a specified amount of current to the sample.

  4 voltmeter measures the induced voltage and stores this as a double or be it in something like a table.

  5 current source turns off.

  6. second pin on arduino set high, while the rest low and steps 3 through 5 are repeated until all 6 pressure measurements were recorded.

  7. the 6 measures must be exported to excel the file or Notepad or other.

  8. the same data could be transmitted to something like a different tab in the same program to perform the calculations to find the semiconductor, parameters of the sample.

  A state machine with these 8 States (and perhaps some assistance States: idle, stop, start, error, etc..).

  Basically a while loop with a case structure (one case for each State) and a State (e.g., enum) variable in a passage that. Look at the design templates provided with LabVIEW.

  (A flat sequence is too rigid for this. What happens if an error occurs in the #5 State? It has no way to go to a State of emergency. What happens if you want to stop in the Middle? What If a State fails and must be repeated.)

• PL/SQL implementation of algorithm of backpack without terminals?

  Hello world

  I am currently working on an algorithm to find the best possible combination according to a lower cost for > = necessary quantity (it's much a similar to a backpack boundless algorithm). For example, if 100 pieces are necessary since the given pool stores (see the data in the table below), I have to come up with a best possible combination. So, in this example, the best choice would be to pull the store_id (A, B, C). I'm currently experimenting with a limited record set 20 who, according to my approach (ie the brute force) who would SELECT (POWER (2.20)) FROM DUAL;  1048576 * 20 iterations and it takes more than 30 seconds using pure PL/SQL. Some information more I play a few checks to see if one store has a required amount then choose the store and out else make a comparison of cross join assuring that the store_id even are not attached then finally if nothing bothers me the quantity required then I'll for a brute force approach. If there is a best way to short circuit the third stage or all have a similar problem and came up with a BETTER solution, please let me know. He could help me and probably many others (SQL approach is available but not PL/SQL). I tried to look for something similar online but has never been able to find any implementation of PL/SQL of the algorithm of bag backpack.

  store_id available_qty cost_per_unit

  A	43	1.93
  B	34	2.01
  C	27	2.12
  D	24	2.18
  E	24	2.18
  F	24	2.18

  Table script and insert above instructions

  DROP TABLE available_qty;

  CREATE TABLE available_qty (store_id VARCHAR2 (1) PRIMARY KEY,)

  available_qty NUMBER,

  cost_per_unit NUMBER);

  INSERT INTO available_qty)

  store_id,

  available_qty,

  cost_per_unit)

  VALUES ('A',

  43,

  1.93);

  INSERT INTO available_qty)

  store_id,

  available_qty,

  cost_per_unit)

  VALUES ('B',

  34,

  2.01);

  INSERT INTO available_qty)

  store_id,

  available_qty,

  cost_per_unit)

  VALUES ('C',

  37 M

  2.12);

  INSERT INTO available_qty)

  store_id,

  available_qty,

  cost_per_unit)

  VALUES (',)

  24,

  2.18);

  INSERT INTO available_qty)

  store_id,

  available_qty,

  cost_per_unit)

  VALUES ('E',

  24,

  2.18);

  INSERT INTO available_qty)

  store_id,

  available_qty,

  cost_per_unit)

  VALUES ('F',

  24,

  2.18);

  COMMIT;

  The package that I put in place (I took ideas from multiple sources and come to this, just so that everyone knows)

  CREATE or REPLACE PACKAGE get_available_qty

  IS

  TYPE available_qty_typ IS RECORD (store_id VARCHAR2 (1))

  available_qty NUMBER,

  cost_per_unit NUMBER,

  best_combo_flag VARCHAR2 (1));

  TYPE available_qty_nt IS TABLE OF THE available_qty_typ;

  TYPE available_qty_aat IS TABLE OF THE available_qty_typ

  INDEX BY PLS_INTEGER;

  FUNCTION get_best_combo (p_qty_required NUMBER)

  RETURN available_qty_nt

  IN PIPELINE;

  END;

  /

  CREATE or REPLACE PACKAGE get_available_qty BODY

  AS

  FUNCTION get_best_combo (p_qty_required NUMBER)

  RETURN available_qty_nt

  PIPELINED

  IS

  get_available_qty_nt get_available_qty.available_qty_nt

  : = get_available_qty.available_qty_nt ();

  -Local subprogramme

  FUNCTION get_required_qty

  RETURN available_qty_nt

  IS

  v_qty NUMBER: = 0;

  v_cost_per_unit NUMBER: = 0;

  V_cost_per_unit1 NUMBER: = 0;

  v_best_store_id VARCHAR2 (4000) DEFAULT NULL;

  v_best_store_id_combo VARCHAR2 (4000);

  is_qty_available BOOLEAN DEFAULT FALSE;

  is_first_run BOOLEAN DEFAULT TRUE;

  v_assign_store_id_flag DBMS_UTILITY.uncl_array;

  v_table_length directory.

  -Local subprogramme nested

  FUNCTION return_null

  RETURN available_qty_nt

  IS

  BEGIN

  get_available_qty_nt. Delete;

  RETURN get_available_qty_nt;

  END;

  BEGIN

  SELECT aq.*,

  "N' best_combo_flag

  LOOSE COLLECTION get_available_qty_nt

  Of available_qty aq;

  FOR indx IN 1... get_available_qty_nt. COUNTING LOOP

  v_qty: = v_qty + get_available_qty_nt (indx) .available_qty;

  END LOOP;

  -If the total available quantity is less than the required quantity can return null

  IF v_qty > = p_qty_required THEN

  is_qty_available: = TRUE;

  ON THE OTHER

  get_available_qty_nt: = return_null();

  END IF;

  -The sub condition will run when the available quantity > = necessary quantity

  IF is_qty_available THEN

  -Check if any single store has available!

  FOR rec IN 1... get_available_qty_nt. COUNTING LOOP

  IF get_available_qty_nt (rec) .available_qty > = p_qty_required THEN

  IF (v_cost_per_unit > get_available_qty_nt (rec) .cost_per_unit) THEN

  v_cost_per_unit: = .cost_per_unit get_available_qty_nt (CRE);

  v_best_store_id_combo: = .store_id get_available_qty_nt (CRE);

  ELSIF (v_cost_per_unit = 0) THEN

  v_cost_per_unit: = .cost_per_unit get_available_qty_nt (CRE);

  v_best_store_id_combo: = .store_id get_available_qty_nt (CRE);

  END IF;

  END IF;

  END LOOP;

  -Reset local variables

  IF v_best_store_id_combo IS NOT NULL THEN

  is_qty_available: = FALSE;

  ON THE OTHER

  v_cost_per_unit: = 0;

  v_best_store_id_combo: = NULL;

  END IF;

  -If above condition does not then execute a combination of Cartesian product comparison

  IF is_qty_available THEN

  BECAUSE me in 1... get_available_qty_nt. COUNTING LOOP

  v_qty: = 0;

  v_cost_per_unit1: = 0;

  FOR j IN 1... get_available_qty_nt. COUNTING LOOP

  IF (get_available_qty_nt (i) .store_id! = get_available_qty_nt (j) .store_id) THEN

  v_qty: = get_available_qty_nt (i) .available_qty

  + get_available_qty_nt (j) .available_qty;

  v_cost_per_unit1: = get_available_qty_nt (i) .cost_per_unit

  + get_available_qty_nt (j) .cost_per_unit;

  IF v_qty > = p_qty_required THEN

  IF (v_cost_per_unit! = 0)

  AND v_cost_per_unit1 < v_cost_per_unit) THEN

  v_cost_per_unit: = v_cost_per_unit1;

  v_best_store_id_combo: = get_available_qty_nt (i) .store_id

  || ','

  || get_available_qty_nt (j) .store_id;

  ELSIF v_cost_per_unit = 0 THEN

  v_cost_per_unit: = v_cost_per_unit1;

  v_best_store_id_combo: = get_available_qty_nt (i) .store_id

  || ','

  || get_available_qty_nt (j) .store_id;

  END IF;

  END IF;

  END IF;

  END LOOP;

  END LOOP;

  -Reset local variables

  IF v_best_store_id_combo IS NOT NULL THEN

  is_qty_available: = FALSE;

  ON THE OTHER

  v_cost_per_unit: = 0;

  v_cost_per_unit1: = 0;

  v_best_store_id_combo: = NULL;

  END IF;

  -Carry out all possible combinations (Brute Force approach)

  IF is_qty_available THEN

  BECAUSE me in 1... POWER (2, get_available_qty_nt.) (COUNT) - 1 LOOP

  v_qty: = 0;

  v_best_store_id: = NULL;

  v_cost_per_unit: = 0;

  FOR j IN 1.get_available_qty_nt. COUNTING LOOP

  IF BITAND (i, POWER (2, j - 1))! = 0 THEN

  v_qty: = v_qty + get_available_qty_nt (j) .available_qty;

  v_best_store_id: = v_best_store_id | get_available_qty_nt (j) .store_id | ',';

  v_cost_per_unit: = (v_cost_per_unit + get_available_qty_nt (j) .cost_per_unit);

  END IF;

  END LOOP;

  IF (v_qty > = p_qty_required) THEN

  IF is_first_run THEN

  v_cost_per_unit1: = v_cost_per_unit;

  is_first_run: = FALSE;

  END IF;

  IF (v_cost_per_unit < = v_cost_per_unit1) THEN

  v_best_store_id_combo: = RTRIM (v_best_store_id, ",");

  v_cost_per_unit1: = v_cost_per_unit;

  END IF;

  END IF;

  END LOOP;

  END IF;

  END IF;

  END IF;

  -Make a list for the allocation of the Pavilion

  DBMS_UTILITY.comma_to_table (list = > v_best_store_id_combo,)

  Many = > v_table_length,

  tab = > v_assign_store_id_flag);

  FOR k in 1... v_assign_store_id_flag. COUNTING LOOP

  FOR l IN 1... get_available_qty_nt. COUNTING LOOP

  IF get_available_qty_nt (l) .store_id = v_assign_store_id_flag (k) THEN

  get_available_qty_nt (l) .best_combo_flag: = 'Y ';

  END IF;

  END LOOP;

  END LOOP;

  RETURN get_available_qty_nt;

  END;

  BEGIN

  get_available_qty_nt: = get_required_qty();

  BECAUSE me in 1... get_available_qty_nt. COUNTING LOOP

  PIPE ROW (get_available_qty_nt (i));

  END LOOP;

  RETURN;

  END;

  END get_available_qty;

  -When you call the function, it returns the result back with indicators updated for stores with the most profitable combination!

  SELECT *.

  TABLE (get_available_qty.get_best_combo (100))

  ORDER BY best_combo_flag DESC;

  The best combination for 100 items stores are marked "Y".

  store_id available_qty cost_per_unit best_combo_flag

  A	43	1.93	THERE
  B	34	2.01	THERE
  C	27	2.12	THERE
  D	24	2.18	N
  E	24	2.18	N
  F	24	2.18	N

  SELECT *.

  TABLE (get_available_qty.get_best_combo (70))

  ORDER BY best_combo_flag DESC;

  The best combination of store that will make up 70 or more items are marked "Y".

  store_id available_qty cost_per_unit best_combo_flag

  A	43	1.93	THERE
  B	34	2.01	THERE
  E	24	2.18	N
  D	24	2.18	N
  F	24	2.18	N
  C	27	2.12	N

  Sorry, this seems to be a problem trivial backpack to me, since the 'size' different weighted units is the same.

  Then you can simply use a greedy algorithm, taking the cheaper units first.

  This could easily be done using analytical functions.

  The magic number here is 100. It can be replaced by a parameter or variable binding.

  To make it more unambigous in two stores have the same costs, you can extend the order by the analytical function with the value.

  Select

  store_id

  available_qty

  cost_per_unit

  case

  When nvl (sum (available_qty) (cost_per_unit order

  lines between unlimited and 1 preceding)

  0)

  < 100="" then="">

  another "n".

  end best_combo_flag

  of available_qty

  order of cost_per_unit, store_id

  STORE_ID	AVAILABLE_QTY	COST_PER_UNIT	BEST_COMBO_FLAG
  A	43	1.93	THERE
  B	34	2.01	THERE
  C	27	2.12	THERE
  F	24	2.18	N
  D	24	2.18	N
  E	24	2.18	N

  Post edited by: chris227

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  Good bye

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  You suggested that the A30 Satellite using the Belkin WLan adapter. I guess it has better compatibility between router Belkin and Belkin WLan card. As a result, you will get the best performance.

  However, on your satellite, you must check the WLan card properties. There you should find a few options that could increase performance card and connectivity.
  Important: Energy saving Option should be disabled in the properties of the map. Try also to set the WLan range at the highest level.

  In addition it s advisable to check the WLan card driver updates. If you use a map control WLan Intel the Intel page for updates.

• After update for HP UPD PCL 5 on the network drivers, local printers now very slow printing

  I've recently updated the HP Universal Print Driver PCL 5 on my Windows 2008 R2 file and print server.  All printers on network HP 5 now show the new driver of the UPD PCL 5, and 5 all seems to work fine from all clients on the attached network.

  However, as soon as I had updated the drivers from server, anyone with a printer connected locally HP began to test response times very slow when trying to print jobs to their local printer or even bring up the properties of the local printer.  I think that it is because local printers also use the HP UPD PCL5 driver, and something "broke" when I updated the driver on the server.   If the local printer is set as default, trying to make it appear a Properties dialog box takes several seconds (before it was instant), and clicking PRINT in any application results in a noticeable delay for the print dialog box to appear, followed by another notable delay (as in 10-20 seconds) before work is treated and control the application returned ot the user.  The printer takes then to another a few seconds to process work.  Essentially print jobs local just went from 5 seconds to 30 seconds or more for each task to start to print more.  This is unacceptable.

  I tried to remove all printers on network among the PC client, and then deleting the local printer as well.  I restarted, then used the install.exe HP UPD PCL 5 to start the installation on the local computer, choosing to do an installation of USB.  I turned on the printer local return and it has been recognized and loaded the new HP UPD PCL5 driver, but the problem persists.

  So after messing around with this more yesterday I think I narrowed down it to a port number.  It seems that when computers with local printers connected downloaded the new UPD PCL 5 form the network (updated their drivers for network printer), he reconfigured the USB port for each printer connected locally.  The USB port on the local printer will now appear as "DOT4 generic IEEE 1284.4 support printing", while before I'm pretty sure he showed as "DOT4 HP Laserjet one."   This white paper (which is unfortunately for Windows XP) appears to support the hypothesis that the port has changed and that the generic port is much slower (this is what we see now with local printers).  White paper on the issue of generic DOT4 port

  I tried to delete all printers that use the UPD from a local system and then using the install.exe form the UPD package to install the local printer as a USB printer (disconnection of the latter before installation and then in reconnecting it when you are prompted by Setup), still the same generic port is re-created.  How can I change the generic port to a specific port HP driver for printers normally respond again?

  Furthermore, I opened a ticket with the help of HP on the issue Monday afternoon, it is now Wednesday morning and the only response I received was a request to make sure that my cables were not more than 6' long.  Seriously HP support?

  My best guess is that you do not use the name of specific driver to the version on the print server.   Driver version-specific name will look like "HP Universal printing PCL6 (v5.9.0).   Non-specific to the version name will look like "HP Universal PCL6 print.

  When you work with print servers, it is recommended to use the name of the version-specifc driver.   I think what happened here are that the driver has been updated on the server, and this update was then pushed to clients through point and print because the pilots names.

  You have indicated that you are using the PCL5 driver.   In a general office print PCL6 offers the best combination of performance and print quality.   I recommend you go to PCL6 immediately, unless your devices or custom applications/solutions are not compatible with PCL6.  (This is very rare)

  If it were my system, here's what I'd do.

  1. Download UPD PCL6 5.9.0 and PARK of www.hp.com/go/upd
  2. Install the UPD PCL6 5.9.0 on my print server using the name specific to the version - create a temporary queue.
  3. Run AutoUpgradeUPD.exe from the PARK to remove queues existing impression on my print server and re-create them with the PCL6 driver.   (See http://youtu.be/mYCVx1RBp9w for more information on this utility)
  4. Remove the temporary queue
  5. On my clients, I would remove the existing printer USB connections.
  6. Run the UPD PCL6 5.9.0 installer and select the USB - Plug and Play mode and make sure that both check boxes are enabled.
  7. Re-connect local printers.

  Something else I could try to implement PRNCON of the PARK on each client.    It will be delete and re-create the connections to printer to the print server.    This can be run without command-line switches, but I like to use the '-2000 w' command to force a second 2 the delay between the removal of the printer connection and recreate.

  In a last time, I'll make sure to remove any old/unused drivers from the print server.

• Times New Roman 11 point shrunken feel justified with HP UPD PCL 5 results in characters

  Since the duty switch to the driver for HP (PCL 5) universal print several months ago, when we made the jump to Windows 7 (it seem not to be any specific device Windows 7 x 64 drivers for most HP printers) that we had a very specific problem with printing documents (especially from Word 2010).

  When we print a document that has the Times New Roman 11 point police, and that the document is fully justified, the output will of characters that are "crushed" together in different places on the pages.  For example, the 'l' and the 'e' in 'legally' in part of a page could be printed too close, almost on top of the other, while the same Word may appear later in the page and end.

  This strange behavior output is consistent when the document is printed several times with different HP printers (all using the UPD PCL 5).  In other words, the shriveled characters will appear in the same place on the same pages of any printer send us the task to (we have printers ranging from an old 4050N and a whole new m602) or how many times it is printed.

  Since one of our departments has literally thousands of legal documents that use Times New Roman 11 point fully justified, it's a pretty big deal.  For the moment, we have been print these documents to a photocopier to avoid the HP UPD question, but this isn't a permanent solution.  I need to know how to solve this problem for HP printers so we can print documents we have where we need.

  I should mention that I've already updated printer drivers network (Windows 2008 R2) to the last UPD PCL 5 (July 2014).

  I have some ideas on this issue.

  First of all, for more general printing Office such as from Word and other applications of MS Office, you will get the best combination of performance and print quality using the PCL6 driver.   Unless you have a legacy application that requires PCL5, I would recommend moving to PCL6.

  Second, when you moved to the HP UPD did you create new print queues or to update an existing queue by using the new driver option on the Advanced tab of the driver?    When you use the pilot 'new' option, Windows did his best to keep the old queue settings and put them on the new pilot.   This may cause missing, additional incorrect registry entries, corrupt or simply on the queue.      I always recommend to create new print queues when changing drivers.   If you have a large number of print queues that must be deleted and recreated, I suggest you try the AutoUpgradeUPD.exe utility from administrator print Resource Kit (PARK) at www.hp.com/go/upd.     For more information about this utility, see http://youtu.be/mYCVx1RBp9w

  Finally, some Microsoft Office applications save some driver with the file information.   I see this more often with Excel, but I guess that Word may depend on as well.   The problem is that the application passes data from the former driver for the new driver and it can create unexpected results.    To see if this is the case, open the print dialog box, and then click on printer properties to open the user interface for the driver.   It is enough to click OK to close the window and the driver information will be updated in the Word document.    Now, click on print and see if the output is improved.   If Word prompts you to save your changes when you close the document (and you make changes) that's a clue that the driver information has been updated in the .doc file.

• Help, please! Intel graphics hd 4000/nvidia k2000m questions

  Hey guys, I'll have two both of my graphics (intel HD 4000 + nvidia k2000m) first of all I am a musician and I run a recording software (avid protools) off the w530. for some reason, I'm having problems using a secondary monitor... The computer is not output any signal through the vga port or mini HD on the graphics card intel HD 4000... I tried to hit win + p to activate the option of mutiple monitor, I updated the driver of 4000 intel HD and still no signal output... so when I switch to the k2000m, everything works perfectly... both vga and mini HD port works, but for some strange reason, I get cpu overload in my burning software... Almost if the computer longer hard using the k2000m... Idk if this is a driver issue, but I really need the dual monitor working in my w530 function... Any ideas or suggestions to solve these two problems. Thank you

  Hi Mpcsauce,

  Welcome to the forums. All external monitors are dictated by the discreet displayport graphics card from Nvidia, such as the VGA and mini ports are physically connected to this card. Therefore, integrated graphics card Intel can only go out to screen integrated notebook (Nvidia card can do, if force you it in the BIOS).

  The best thing to do is to make sure that the graphic card in the BIOS settings is set to "NVIDIA Optimus", given that the laptop switches between card Intel and Nvidia, providing the best combination of performance and battery life. Your second question is strange, but I would like to begin by updating the drivers on the K2000m.