Hello everyone,
The screen sleep issue can, as always, come from several possible causes... (and no one is necessarily in the same situation...)
AND as often, we need to distinguish between Software or Hardware as the source of the problem.
For the "Hardware" causes, there are a few clues to get on the right track... So:
1. The issue occurs randomly, at any time.
2. Restarting the PC does not remove the sleep mode.
3. The screen light turns orange. (= so it's definitely a screen sleep mode, unlike a black screen but with the light still green, there can sometimes be confusion). The orange light can only occur after a real power outage.
4. Windows also seems to restart afterwards...
For the "Software" causes, there are also a few clues to get on the right track... So:
1. Follows the installation of a software.
2. Follows fiddling with the display settings, particularly of the graphics card, or less easily identifiable, the power options... (even at the BIOS level)
3. Always follows fiddling with DirectX (or following the installation of a game reinstalling DirectX)
4. Always follows the same use of a software. (there, it's obvious!)
5. Follows a change of graphics card.
THE solutions to consider:
Hardware Cause
1. Overheating of the graphics card, which causes the memory to "fail". Normally, after cooling down it should come back for a while before happening again. In this case, check the CPU temperature, or other indicator gauge (managed by BIOS)
2. Same idea as above, but more serious! ONE or MORE faulty capacitors due to still excessive temperature rise. In this case, visually check if you see a swollen capacitor on the graphics card (or on the motherboard). Be careful, sometimes the swelling occurs not on the top of the capacitor but on the bottom, and it's less noticeable at first glance...
2bis. Check the temperature inside the case. If it is excessive, it can cause the RAM to "fail". A simple way to see this is in the BIOS. You can also leave the case open to see if that temporarily helps... Then implement a cooling solution...
3. IF Windows also seems to have "failed"... There, plenty of other causes could be at play... So I won’t go into detail... (otherwise we need a real flowchart...)
4. If the screen had a period where it changed to a monochrome color... Check the cable between the screen and the PC. (Bad contact in the cable wires)
5. If the screen (CRT) had a period where the image was reduced in height or width, without being able to resize it... It means the screen is now ready for the trash...
6. If the graphics card is very recent, on an old screen... It is possible that the card frequency is too high... It’s mainly a settings issue...
6bis. If the graphics card is only very recent, then the uninstallation of the old card (at the software level) was not done before installing the new one. In some new graphics card installations, some settings retain the old values... Hence the bug...
7. Many people who bought the same card have issues! No, I'm not joking! I’ve seen it on CCM! And the problem was... the manufacturing! (but this remains quite rare...)
--
... ANYWAY, I won't finish, it's so long that it would take a program!!!
Good luck to everyone...
--
See you,
Best regards, Us.