01-22-2020 08:01 AM
During this weekend (Sunday January 19, 2020), my machine started to develop a **bleep** weird problem: incredible response times of the GUI (4 seconds for the taskbar to disappear). The cpu used ressources were less than 20%, but, under Task Manager or Russinovich's Process Explorer , I saw a 90 to 100% increase of the "GPU 3D" ressources. The "culprit" is seen as the window manager (dwm). The cpu clock frequency measured by "WhySoSlow" does not exceed 500 MHz (for a processor clocked at 2.6 GHz)
HP tablet 810 G3, i7 processor, 12 GB of ram, 500 GB of SSD, Intel HD5500 chipset video card, Windows 10 Pro 10.0.18363.592, all patches applied, and a whole collection of anti-virus and anti-spyware software have been used to detect any abnormal activity. No exotic software, no pirated license (shoud I precise :-))), no visit to "border line" web sites.
Undertaken Actions :
- return to a previous restore point (no effect)
- use of SFC and DISM tools (no effect)
- reinstallation of a new kernel "leaving the user files" (Windows recovery procedure): (no effect)
- Restore of two older backups (the oldest dating from July 2019, from a "clean and functional" machine) ... no effect.
- change of the video driver using the "hp softpack tool", latest driver (no effect)
- scouring with ammoniacal soap, bleach and iron wool of all partitions, "fresh" installation of an original Windows kernel "Made In MSDN" .
... And then I start to wonder if I was not running crazy
... without installing ANYTHING but the kernel, the "3D" gpu reach 100%. The video driver installed by default by Windows was the "good" one, the famous "intel HD 5500".
With my best Blue Steel 44., I shoot the driver via the device manager (uninstalling the component). Windows decided to use a "Microsoft basic video card" ... and everything came back, nice and easy. A responsive interface, a normal 2.6 GHz clock frequency, task bar pops up and clears smoothly
I sould precise that I also used a Linux Mint in another partion, which never showed the slightest sign of illness or bad behavior. Hardware is fine, it is really a "software" question.
But the "shoot the driver" approach is not elegant : the display color management is ugly (which is slightly disturbing in 3D modeling when I use a CAD /CAM or EDA softwares ) ... and this **bleep** Windows automatically decides from time to time to pick up a driver corresponding to the description of the original video board/chipset. And "big badaboom" again.
I can only work with the open device manager, ready to kill the Intel driver as soon as it shows up.
- I have not seen any alerts or security advices from Intel or HP / Compaq on this subject
- I do not think it is a regression related to the last Windows update (I would not have a problem with the restore of the old versions)
If anyone had an idea, even a totally absurd one, I would be ready to listen to his advice. I must admit, I'm totally lost
02-14-2020 09:13 AM
reply to myself :
after several investigations, it seems that the main board and/or the cpu cooling have to be repaired . Machine sent to the HP maintenance center...
I'm affraid I'll never know the reason of the failure