Driver wdcsam64sys causes screen full/shrink loop

[bbardin]

Cursor recenters each time screen changes. Can’t safe boot.

[TejaswiniM]

Hi @bbardin , Welcome to HP Support Community!

Cursor Re-Centering & Safe Mode Boot Issue – HP ZBook 15 G5

Overview

The issue of the cursor recentering each time the screen changes on your HP ZBook 15 G5, combined with the inability to boot into Safe Mode, suggests a possible software or driver conflict, or in some cases, a hardware malfunction.

---

Troubleshooting the Cursor Issue

1. Possible Causes

• Touchpad sensitivity set too high

• Outdated or corrupted drivers (touchpad or graphics)

• Touchscreen “ghost inputs”, if your device includes a touchscreen

---

2. Potential Software / Driver Fixes

a. Update or Reinstall Drivers

1. Open Device Manager (right-click the Start button and select it).

2. Expand Mice and other pointing devices.

3. Right-click your touchpad (e.g., Synaptics or HP Touchpad) and select Uninstall device.

4. Restart your computer — Windows will reinstall the driver automatically.

5. To update your graphics driver:

   • Expand Display adapters, right-click your GPU, and select Update driver.

6. Visit the official HP Support website for your ZBook 15 G5 to download and install the latest BIOS, touchpad, and graphics drivers.

---

b. Adjust Touchpad Sensitivity

1. Open Control Panel → Search for Mouse.

2. In the Mouse Properties window, go to the touchpad tab (often “Synaptics” or “HP Touchpad”).

3. Click Settings or Advanced.

4. Reduce the sensitivity level to minimize accidental palm inputs.

---

c. Disable “Ease Cursor Movement Between Displays” (If Applicable)

If you’re using multiple monitors:

1. Go to Settings > System > Display > Multiple displays.

2. Uncheck Ease cursor movement between displays.

---

d. Perform a Hard Reset

1. Turn off the computer and disconnect all peripherals and power.

2. If removable, take out the battery.

3. Hold the Power button for 15 seconds to drain residual power.

4. Reinsert the battery (if applicable) and reconnect power.

5. Turn on the system.

---

e. Run System File Checker (SFC)

1. Right-click Start → Select Windows Terminal (Admin) or Command Prompt (Admin).

2. Type the following command and press Enter:

   sfc /scannow

3. Wait for the scan to complete and follow any on-screen instructions.

---

Troubleshooting Safe Mode Access

If you cannot access Safe Mode through Settings > Recovery > Advanced startup, try one of the following methods:

---

Option 1: Using the Startup Menu (Before Windows Loads)

1. Turn off your computer.

2. Power on and immediately press Esc repeatedly until the Startup Menu opens.

3. Press F11 for System Recovery.

4. On the Choose an option screen, select:
   Troubleshoot > Advanced options > Startup Settings > Restart.

5. After restart, press F4 to start Safe Mode.

---

Option 2: Using Command Prompt (If Keyboard Works)

1. Turn on the laptop and repeatedly press Esc until the Startup Menu opens.

2. Press F11 to open System Recovery.

3. Navigate to:
   Troubleshoot > Advanced options > Command Prompt.

4. Sign in with your Windows credentials.

5. In Command Prompt, type:

   bcdedit /set {default} safeboot minimal

6. Close Command Prompt → Select Continue to boot into Safe Mode.

To exit Safe Mode later:
Repeat the above steps and run this command instead:

bcdedit /deletevalue {default} safeboot

Then restart normally.

Hope this helps! Keep me posted

[TejaswiniM]

Hi @bbardin , Welcome to HP Support Community!

The issue of the cursor recentering each time the screen changes on your HP ZBook 15 G5, combined with the inability to boot into Safe Mode, suggests a possible software or driver conflict, or in some cases, a hardware malfunction.

Troubleshooting the Cursor Issue

1. Possible Causes

• Touchpad sensitivity set too high

• Outdated or corrupted drivers (touchpad or graphics)

• Touchscreen “ghost inputs”, if your device includes a touchscreen

---

2. Potential Software / Driver Fixes

a. Update or Reinstall Drivers

1. Open Device Manager (right-click the Start button and select it).

2. Expand Mice and other pointing devices.

3. Right-click your touchpad (e.g., Synaptics or HP Touchpad) and select Uninstall device.

4. Restart your computer — Windows will reinstall the driver automatically.

5. To update your graphics driver:

   • Expand Display adapters, right-click your GPU, and select Update driver.

6. Visit the official HP Support website for your ZBook 15 G5 to download and install the latest BIOS, touchpad, and graphics drivers.

---

b. Adjust Touchpad Sensitivity

1. Open Control Panel → Search for Mouse.

2. In the Mouse Properties window, go to the touchpad tab (often “Synaptics” or “HP Touchpad”).

3. Click Settings or Advanced.

4. Reduce the sensitivity level to minimize accidental palm inputs.

---

c. Disable “Ease Cursor Movement Between Displays” (If Applicable)

If you’re using multiple monitors:

1. Go to Settings > System > Display > Multiple displays.

2. Uncheck Ease cursor movement between displays.

---

d. Perform a Hard Reset

1. Turn off the computer and disconnect all peripherals and power.

2. If removable, take out the battery.

3. Hold the Power button for 15 seconds to drain residual power.

4. Reinsert the battery (if applicable) and reconnect power.

5. Turn on the system.

---

e. Run System File Checker (SFC)

1. Right-click Start → Select Windows Terminal (Admin) or Command Prompt (Admin).

2. Type the following command and press Enter

3. Wait for the scan to complete and follow any on-screen instructions.

Troubleshooting Safe Mode Access

If you cannot access Safe Mode through Settings > Recovery > Advanced startup, try one of the following methods:

---

Option 1: Using the Startup Menu (Before Windows Loads)

1. Turn off your computer.

2. Power on and immediately press Esc repeatedly until the Startup Menu opens.

3. Press F11 for System Recovery.

4. On the Choose an option screen, select:
   Troubleshoot > Advanced options > Startup Settings > Restart.

5. After restart, press F4 to start Safe Mode.

If the Issue Persists

If the cursor re-centers or moves erratically even in BIOS or Safe Mode, the problem is hardware-related — possibly due to:

• Faulty touchpad or pointing stick

• Defective touchscreen sensor

• Issue with the system board

Next Step: Contact HP Support or an Authorized Service Center for professional repair or replacement.

Hope this helps! Keep me posted.