CN104572375A - Method and device for diagnosing computer through display interface - Google Patents
Method and device for diagnosing computer through display interface Download PDFInfo
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- CN104572375A CN104572375A CN201510036497.7A CN201510036497A CN104572375A CN 104572375 A CN104572375 A CN 104572375A CN 201510036497 A CN201510036497 A CN 201510036497A CN 104572375 A CN104572375 A CN 104572375A
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Abstract
The invention discloses a method and a device for diagnosing a computer through a display interface. The method includes the steps: when an external device is inserted into the display interface of the computer, the computer acquires a hog plugging detection signal of the display interface; according to the hot plugging detection signal, determining that the external device is a display or a diagnostic card; if the external device is the display, establishing a display channel between the computer and the display, and performing corresponding operations through the display channel; if the external device is the diagnostic card, creating a diagnostic channel between the computer and the diagnostic card, transmitting a diagnostic code of a BIOS (basic input/output system) internal self-check program to the diagnostic card to allow the diagnostic card to diagnose the computer through the diagnostic code of the BIOS internal self-check program. The method and the device have the advantages that faults of the computer can be diagnosed through the display interface without opening a housing and user experience is improved.
Description
Technical field
The present invention relates to field of computer technology, particularly a kind ofly realize the method for computer diagnosis and relevant device by display interface device.
Background technology
Computer diagnostic card can conveniently judge computer hardware problem, is diagnostic tool popular at present.Current computer diagnostic card is nearly all Universal Asynchronous Receive/dispensing device (Universal AsynchronousReceiver/Transmitter, UART), low pin number (Low Pin Count, LPC), the interfaces such as System Management Bus (System Management Bus, SM BUS).Along with the development of computer industry, in notebook, desktop computer, all-in-one, UART interface disappears, LPC and SM BUS belongs to computer-internal interface, first must take machine apart during maintenance, more time-consuming when hardware diagnostic.
For solving the problem, the invention provides a kind of method and the device that are realized computer diagnosis by display interface device.
Summary of the invention
The object of the present invention is to provide a kind of method and the device that are realized computer diagnosis by display interface device, the time consuming procedures found first must taken computer housing when diagnosis computer fault apart and bring can be solved.
According to an aspect of the present invention, provide a kind of method being realized computer diagnosis by display interface device, comprising:
When external unit inserts the display interface device of computing machine, computing machine obtains the hot plug detection signal of described display interface device;
According to described hot plug detection signal, determine that described external unit is display or diagnostic card;
If determine, described external unit is display, then set up the display channel between computing machine and described display, and utilizes described display channel, reads the extending display identification data of described display;
If determine, described external unit is diagnostic card, then set up the diagnosis passage between computing machine and described diagnostic card, and utilize described diagnosis passage, the diagnostic code of BIOS built in self testing program is sent to described diagnostic card, for the diagnostic code of told diagnostic card according to described BIOS built in self testing program, computing machine is diagnosed.
Preferably, described according to described hot plug detection signal, determine that described external unit is that display or the step of diagnostic card comprise:
The level of described hot plug detection signal is judged;
When judging that described hot plug detection signal keeps high level, determine that described external unit is display;
When judging that described hot plug detection signal keeps low level, determine that described external unit is diagnostic card.
Preferably, also comprise:
Either-or switch controller is set in a computer, to utilize described either-or switch controller to set up described display channel or described diagnosis passage.
Preferably, describedly utilize described diagnosis passage, the step that the diagnostic code of BIOS built in self testing program is sent to described diagnostic card comprised:
The embedded controller of computing machine receives the diagnostic code of BIOS built in self testing program;
Utilize described diagnosis passage, described diagnostic code is passed to described display interface device, and by described display interface device, described diagnostic code is sent to described diagnostic card.
Preferably, described display interface device is display interface (Display Port, DP) or HDMI (High Definition Multimedia Interface) (High Definition Multimedia Interface, HDMI).
According to an aspect of the present invention, provide a kind of device being realized computer diagnosis by display interface device, comprising:
Detection signal acquisition module, for when external unit inserts the display interface device of computing machine, obtains the hot plug detection signal of described display interface device;
External unit determination module, for according to described hot plug detection signal, determines that described external unit is display or diagnostic card;
Processing module, for when determining that described external unit is display, set up the display channel between computing machine and described display, and utilize described display channel, read the extending display identification data of described display, when determining that described external unit is diagnostic card, set up the diagnosis passage between computing machine and described diagnostic card, and utilize described diagnosis passage, the diagnostic code of BIOS built in self testing program is sent to described diagnostic card, for the diagnostic code of told diagnostic card according to described BIOS built in self testing program, computing machine is diagnosed.
Preferably, the level of described external unit determination module to described hot plug detection signal judges, when judging that described hot plug detection signal keeps high level, determine that described external unit is display, when judging that described hot plug detection signal keeps low level, determine that described external unit is diagnostic card.
Preferably, described external unit determination module comprises and arranges either-or switch controller in a computer, to utilize described either-or switch controller to set up described display channel or described diagnosis passage.
Preferably, described processing module receives the diagnostic code of BIOS built in self testing program, utilizes described diagnosis passage, described diagnostic code is passed to described display interface device, and by described display interface device, described diagnostic code is sent to described diagnostic card.
Preferably, described display interface device is DP interface or HDMI.
Compared with prior art, beneficial effect of the present invention is:
The present invention can utilize the display interface device of computing machine, when computing machine breaks down, need not take casing apart, also can the fault of diagnosis computer (such as notebook, desktop computer, all-in-one), and convenient for maintaining, effectively improves Diagnostic Time.
Accompanying drawing explanation
Fig. 1 is the method flow diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides;
Fig. 2 is the device block diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides;
Fig. 3 is the first system block diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides;
Fig. 4 is the second system block diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides;
Fig. 5 is the structural representation of diagnostic card for diagnosing computer hardware that the embodiment of the present invention provides;
Fig. 6 is the circuit connection diagram of diagnostic card for diagnosing computer hardware that the embodiment of the present invention provides.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the method flow diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides, and as shown in Figure 1, step comprises:
Step S101: when external unit inserts the display interface device of computing machine, computing machine obtains the hot plug detection signal of described display interface device.
Step S102: according to described hot plug detection signal, determines that described external unit is display or diagnostic card.
Specifically, the level of described hot plug detection signal being judged, when judging that described hot plug detection signal keeps high level, determining that described external unit is display; When judging that described hot plug detection signal keeps low level, determine that described external unit is diagnostic card.
Step S103: described external unit is display if determine, then set up the display channel between computing machine and described display, and utilizes described display channel, reads the extending display identification data of described display.
Step S104: described external unit is diagnostic card if determine, then set up the diagnosis passage between computing machine and described diagnostic card, and utilize described diagnosis passage, the diagnostic code of BIOS built in self testing program is sent to described diagnostic card, for the diagnostic code of told diagnostic card according to described BIOS built in self testing program, computing machine is diagnosed.
Can either-or switch controller be set in a computer, now, in described step S103 and step S104, utilizes described either-or switch controller, set up described display channel or described diagnosis passage.Specifically, when described hot plug detection signal keeps high level, the display channel between display interface device and graphic process unit is set up; When described hot plug detection signal keeps low level, set up the diagnosis passage between display interface device and embedded controller, then, the embedded controller of computing machine is from the diagnostic code of system acceptance BIOS built in self testing program, and utilize described diagnosis passage, described diagnostic code is passed to described display interface device, and then by described display interface device, described diagnostic code is sent to described diagnostic card.
It should be noted that, the display interface device of the present embodiment is DP interface or HDMI.
Fig. 2 is the device block diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides, and as described in Figure 2, comprises detection signal acquisition module 21, external unit determination module 22 and processing module 23.
Detection signal acquisition module 21, for when external unit inserts the display interface device of computing machine, obtains the hot plug detection signal of described display interface device.
External unit determination module 22, for according to described hot plug detection signal, determines that described external unit is display or diagnostic card.
Processing module 23 is for when determining that described external unit is display, set up the display channel between computing machine and described display, and utilize described display channel, read the extending display identification data of described display, when determining that described external unit is diagnostic card, set up the diagnosis passage between computing machine and described diagnostic card, and utilize described diagnosis passage, the diagnostic code of BIOS built in self testing program is sent to described diagnostic card, for the diagnostic code of told diagnostic card according to described BIOS built in self testing program, computing machine is diagnosed.Processing module 23 comprises graphic process unit and embedded controller.
It should be noted that, the display interface device of the present embodiment is DP interface or HDMI.
The course of work is as follows:
When external unit inserts display interface device (HDMI or the DP interface) of computing machine, detection signal acquisition module 21 obtains the hot plug detection signal of described display interface device, when described hot plug detection signal keeps high level, external unit determination module 22 determines that described external unit is display, external unit determination module 22 comprises and arranges either-or switch controller in a computer, it utilizes described either-or switch controller to set up display channel between display interface device and graphic process unit, described display channel is utilized for image processor, read the extending display identification data of described display.When described hot plug detection signal keeps low level, external unit determination module 22 determines that described external unit is diagnostic card, external unit determination module 22 utilizes described either-or switch controller to set up diagnosis passage between display interface device and embedded controller, the diagnostic code of BIOS built in self testing program is received for embedded controller, utilize described diagnosis passage, described diagnostic code is passed to described display interface device, and by described display interface device, described diagnostic code is sent to described diagnostic card.
Fig. 3 is the first system block diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides, as shown in Figure 3, when HDMI or the DP connector of the display access computing machine of HDMI or DP, HPD can become high level, at this moment 2 HDMI:SDA/SCL or DP:AUX+/AUX-selecting 1 on-off controller graphic process unit (i.e. video card) can be connect connect, the extending display identification data (EDID) that video card can read accessed display deliver to system, i.e. main frame.
When diagnostic card inserts HDMI or DP connector (i.e. HDMI or the DP interface) of computing machine, hot plug detection signal (HPD) can continue low level, at this moment 2 those roads of SMBUS, I2C or DAT/CLK selecting 1 on-off controller to be connect by embedded controller are connected, and the diagnostic code that the system PORT80 that embedded controller can be received brings is delivered on diagnostic card and shown.Specifically, the diagnostic code that the Port80 by BIOS sends by embedded controller is transferred to 2 via SM BUS, I2C, DAT/CLK and selects 1 on-off controller, and is transferred to described HDMI or DP interface via SDA/SCL.Wherein, SDA refers to the data line of I2C, and SCL refers to the clock line of I2C; DAT refers to that the data line that embedded controller communicates with diagnostic card, CLK refer to the clock line that embedded controller communicates with diagnostic card.
Visible, 2 external units selecting 1 on-off controller can identify that HDMI or DP interface accesses are diagnostic card or display, thus set up display channel or diagnosis passage, and choose a-road-through road corresponding signal is outputted to HDMI or DP interface.
The course of work is as follows:
Step 1: when COMPUTER DETECTION inserts itself HDMI or DP interface to external unit, 2 select 1 on-off controller to obtain HPD signal.
Step 2: if HPD signal is high level, then illustrate that this external unit is display, now 2 selects 1 on-off controller to set up display channel between described display and graphic process unit, for graphic process unit reading displayed device relevant information.
Step 3: if HPD signal is low level, then illustrate that this external unit is diagnostic card, now 21 on-off controller is selected to set up diagnosis passage between described diagnostic card and embedded controller, the diagnostic code that BIOS fixed port address Port80 exports by embedded controller is via diagnosing channel transfer to described HDMI or DP interface, described diagnostic card is given again, so that diagnostic card utilizes the diagnosis of described diagnostic code realization to computer hardware via described HDMI or DP interface.
Fig. 4 is the second system block diagram being realized computer diagnosis by display interface device that the embodiment of the present invention provides, as shown in Figure 4, compare with embodiment illustrated in fig. 3, the present embodiment selects between 1 on-off controller and HDMI or DP interface 2 and arranges level shifting circuit unit, when HDP signal is high level, by level shifting circuit unit, making to output to 2 selects the voltage of 1 on-off controller and 2 to select the operating voltage of 1 on-off controller to match, avoid HDP signal voltage value too high cause 2 select the abnormal work of 1 on-off controller even to damage.
Fig. 5 is the structural representation of diagnostic card for diagnosing computer hardware that the embodiment of the present invention provides, Fig. 6 is the circuit connection diagram of diagnostic card for diagnosing computer hardware that the embodiment of the present invention provides, as shown in Figure 5 and Figure 6, comprising: HDMI or the DP connector male head 1 (i.e. HDMI or DP interface) of standard, seven segment digital tubes 2 and code translator 3.Wherein, code translator 303 is that one can by HDMI or DP interface 1 and main frame communication, and the Port80 diagnostic code that embedded controller passes over via diagnosis passage is translated out and driven the integrated circuit (IC)-components that seven segment digital tubes 3 shows, be one and n input is become the combinational logic circuit of the multi output end that 2^n exports, here 8 bit shift register are specifically referred to, be used for embedded controller to pass the port80 diagnostic code of coming and translate into the information that seven segment digital tubes can show, to reach diagnostic purpose.
After common computer introduces this invention, the USB diagnostic card that just can have a HDMI or DP interface by the collocation of HDMI or the DP interface of computing machine realizes the hardware diagnostic of computing machine.
In sum, the present invention has following technique effect:
1, by the present invention, HDMI or the DP interface of computing machine possesses hardware diagnostic function, thus need not take casing apart, also can diagnose computer glitch, convenient for maintaining and development of computers;
2, the present invention utilizes HDMI or the DP interface of computing machine to carry out hardware diagnostic, eliminates the connector of reserved diagnose interface, saves cost.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art of the present technique can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (10)
1. realized a method for computer diagnosis by display interface device, it is characterized in that, comprising:
When external unit inserts the display interface device of computing machine, computing machine obtains the hot plug detection signal of described display interface device;
According to described hot plug detection signal, determine that described external unit is display or diagnostic card;
If determine, described external unit is display, then set up the display channel between computing machine and described display, and utilizes described display channel, reads the extending display identification data of described display;
If determine, described external unit is diagnostic card, then set up the diagnosis passage between computing machine and described diagnostic card, and utilize described diagnosis passage, the diagnostic code of BIOS built in self testing program is sent to described diagnostic card, for the diagnostic code of told diagnostic card according to described BIOS built in self testing program, computing machine is diagnosed.
2. method according to claim 1, is characterized in that, described according to described hot plug detection signal, determines that described external unit is that display or the step of diagnostic card comprise:
The level of described hot plug detection signal is judged;
When judging that described hot plug detection signal keeps high level, determine that described external unit is display;
When judging that described hot plug detection signal keeps low level, determine that described external unit is diagnostic card.
3. method according to claim 1 and 2, is characterized in that, also comprises:
Either-or switch controller is set in a computer, to utilize described either-or switch controller to set up described display channel or described diagnosis passage.
4. method according to claim 1 and 2, is characterized in that, describedly utilizes described diagnosis passage, the step that the diagnostic code of BIOS built in self testing program is sent to described diagnostic card is comprised:
The embedded controller of computing machine receives the diagnostic code of BIOS built in self testing program;
Utilize described diagnosis passage, described diagnostic code is passed to described display interface device, and by described display interface device, described diagnostic code is sent to described diagnostic card.
5. method according to claim 1 and 2, it is characterized in that, described display interface device is display interface (Display Port, DP) or HDMI (High Definition Multimedia Interface) (High Definition MultimediaInterface, HDMI).
6. realized a device for computer diagnosis by display interface device, it is characterized in that, comprising:
Detection signal acquisition module, for when external unit inserts the display interface device of computing machine, obtains the hot plug detection signal of described display interface device;
External unit determination module, for according to described hot plug detection signal, determines that described external unit is display or diagnostic card;
Processing module, for when determining that described external unit is display, set up the display channel between computing machine and described display, and utilize described display channel, read the extending display identification data of described display, when determining that described external unit is diagnostic card, set up the diagnosis passage between computing machine and described diagnostic card, and utilize described diagnosis passage, the diagnostic code of BIOS built in self testing program is sent to described diagnostic card, for the diagnostic code of told diagnostic card according to described BIOS built in self testing program, computing machine is diagnosed.
7. device according to claim 6, it is characterized in that, the level of described external unit determination module to described hot plug detection signal judges, when judging that described hot plug detection signal keeps high level, determine that described external unit is display, when judging that described hot plug detection signal keeps low level, determine that described external unit is diagnostic card.
8. the device according to claim 6 or 7, is characterized in that, described external unit determination module comprises and arranges either-or switch controller in a computer, to utilize described either-or switch controller to set up described display channel or described diagnosis passage.
9. the device according to claim 6 or 7, it is characterized in that, described processing module receives the diagnostic code of BIOS built in self testing program, utilize described diagnosis passage, described diagnostic code is passed to described display interface device, and by described display interface device, described diagnostic code is sent to described diagnostic card.
10. the device according to claim 6 or 7, is characterized in that, described display interface device is DP interface or HDMI.
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| CN201510036497.7A CN104572375A (en) | 2015-01-23 | 2015-01-23 | Method and device for diagnosing computer through display interface |
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| CN201510036497.7A CN104572375A (en) | 2015-01-23 | 2015-01-23 | Method and device for diagnosing computer through display interface |
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| CN111399922A (en) * | 2020-03-17 | 2020-07-10 | 北京星网锐捷网络技术有限公司 | Dual-system display device and system |
| CN113742121A (en) * | 2021-08-12 | 2021-12-03 | 上海宏英智能科技股份有限公司 | Mechanical equipment fault diagnosis method and device |
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Application publication date: 20150429 |