What s going on with the laptop volume and brightness desktop not showing a progress bar

The progress bar does not come with the computer, you need to install a small software, different computers are different, generally used with BIOS, it is written by the computer manufacturer, you see if there is anything in your drive disk, if not, go to the official website to see it, I installed it called SCM (System Control Manager), you look at it, only when it is installed will there be a progress bar.

1. The mode of adjusting the volume and brightness of the laptop is different because of the different systems, and the debugging methods are also different. So that's the computer system's own specialty.

2. Some computers can use the numerical adjustment mode to adjust the brightness, and the numerical change value of the brightness will appear every time the adjustment value is displayed to display the brightness adjustment value, which may be more intuitive. Some use the cursor progress bar mode, which allows the user to determine the brightness and volume of the progress bar or cursor scale. Either way, it's a purpose, to make users feel comfortable and used to it.

I'm having the same problem as you.

The sound card driver is not installed, Baidu searches for the universal sound card driver, and it's OK.

Hello friends! 1. Check whether the sound card, cable, speaker and other devices are connected normally. If you have a virus, you should run antivirus software for full antivirus.

2. Open the control panel--- Add new hardware--- Next, after the search is completed, click "No, I haven't added this hardware", click Next. In the dialog box that appears, check Click Done, shut down the computer, restart to add new hardware. Note that this is talking about shutting down and then starting, not restarting.

In general, the problem can be resolved after rebooting.

3. Right-click "My Computer" --Properties ---Hardware--Device Manager" to open.

If so, uninstall it, then put it into the CD drive and reinstall the drivers for this device.

Then you have to find your sound card, including the integrated sound card, the model must be accurate, after confirming that the sound card is found, then put it into the system drive disk, and install the sound card driver.

--- the volume of the device, put a check mark before "put the volume icon in the taskbar", and put it in the taskbar after restarting.

There's a little horn again.

6. When there is no sound and no small speaker, open the control panel --- add and delete the car backup deletion program--- add and delete.

windows component, put in.

New hardware, just follow the prompts to install it.

7. If you can't solve the problem, you have to reinstall the system and drivers, and everything is asked.

The problem will also be solved, but only if the hardware is intact and the software is not closed and there is a conflict.

8. When the sound card driver is installed, the "AC chip cannot be found" prompt appears, it may be that the computer is poisoned, or the sound card is plug and play loose, resulting in poor contact, and it may be that the sound is deleted by mistake due to illegal operation.

card drivers, or internal software conflicts. This has to be done step by step for different reasons. Settle.