Set the "Turn off the display" to 1 minute, to faster reproduce the issue after each try: Right click on battery -> Power Options -> "Turn off the display". If the laptop is on battery you want it to sleep fast, and this problem happens before the laptop goes to sleep.Ģ. The problem with this issue is that it's very hard to reproduce, so it's hard to decide when you actually found the right solution. If nothing will work, you can also find an ugly workaround at the end of the article.
For me it works with the latest drivers from HP. However, the problem seems to not depend on a specific version of other drivers of Bios. The issue on your " HP Probook 450 G4" laptop might be different, or the solution needs another piece of change that I tried before finding this final solution. You might also like my non-technical articles that are the main subject of this blog. I hope it will help people having this problem, I spent days to debug it. The hang happens more often when you have programs opens, like a browser with many tags. You can reproduce the issue again by re-enabling the "Link Power Management: Enabled" and waiting for the screen to go off and waiting some minutes. You can faster check this by setting a small timeout for "Turn off the display", like 1 minute. The problem should be solved after restart. Not sure if the Intel's IRST version works the same. You can find it in the Drive-Storage section.
You might need to install the driver from the HP page for probook-450-g4, if you didn't do it already. This program comes with the "Intel Rapid Storage Technology" driver. Close all windows and reboot the computer. Disable SATA power management by clicking the "Disable" link, to obtain "Link Power Management: Disabled". Open "Intel Rapid Storage Technology" from programs. the only solution for this hang is to forcefully power off the laptop by pressing long the power button for seconds no sign of response for any keyboard or mouse move, not even in cooler rate the computer does not respond to network ping anymore, even on wired connection
the cooler continues to spin like the CPU is active, with no noticeable variations in it's rate the power led and the wireless/speaker buttons lights are ON - unlike the sleep mode when power led flashes and the other lights are off when pressing keyboards or mouse buttons, the screen remains black the hang happens immediately or after couple of minutes after it goes black screen after the "Turn off the display" period the computer works well when used, but hangs forever after being unused for a while Also, when this happens, the computer is really dead (not just a display issue). This is similar, however different than "computer not going back from sleep mode". This "black screen of death" happens randomly after the laptop screen goes off when the computer is idle. This is the solution I've found for laptop hangs/freezes randomly with black screen when idle, for HP Probook 450 G4. The BIOS is able to download each previous version from the network. If you still want to try, you can do this version-by-version from the "BIOS"(UEFI) directly. I tried BIOS downgrade to the initial version by it did not help.
When full system sleeps earlier, it can also wake up correctly.įrom Power Options -> Change when the computer sleeps -> Plugged In Probably a component (SATA, Video card?) was entering sleep before the system's sleep timeout and it was not able to wake up. I found out that setting a lower sleep timeout makes the "freeze with black screen" problem to disappear.
Update March 2020: something was "upgraded" (Bios, Win10?) and the below fix does not hold anymore. If you are still stuck with your HP laptop, I hope these advises will help you. I never had so many problems with a laptop.
Note to self: I will not buy or recommend HP laptops in the future. In order to have Hibernate available you must disable the "Hybrid sleep" in the same Sleep sub-menu. If you still want some automatic power saving, you can enable Hibernate after like 30minutes from the Advanced power options. You might want to disable “Require sign-in” after sleep. You just hit the power button briefly before leaving. You can set the power button and lid close to do Hibernate when you stop working, so you can save some power and heat and resume your work fast enough even without the Sleep function. Just set them all to Never, for battery and plugged in.
Update 2022: Even after a fresh Win10 reinstall and upgrade to latest Bios the problem is still there.Ī way to avoid laptop blocking when idle is to disable both Sleep and Screen turn off - on "Power and Sleep" menu.