1. Once the operating system (Win 7 Ultimate 64-bit, SP-2) of my PC shifts to sleep mode the monitor does not transition into power saver mode. Instead, it turns back on and a blank screen appears (no display of any kind). When this happens, a barely noticeable glow is visible with a slightly higher radiant level at the edges of the screen. When the system is commanded back to normal operation, the monitor remains in this condition (blank screen). Furthermore, the OSD menu will not work and cannot be activated via the front panel control button(s). The only way to restore the monitor back to normal (active screen) is to physically turn the monitor off via the front panel power button and back on again for the desktop to be displayed.
2. The same problem (blank screen) recurs when a power option is selected via the OS that turns the monitor off after a preset period of time.
3. Occasionally during system boot-up, the monitor doesn’t display an active screen as well and remains blank. The problem can at times be corrected by pushing and holding the front panel power button. However, when video reemerges and the display seems to perform normally, the power button and OSD menu is no longer operable and normal operation can only be restored when the power cord is pulled and reconnected.
4. Also during system boot-up, when the monitor doesn’t display an active screen and remains blank, the power button can immediately be rendered inoperable by the anomalous monitor control until the power cord is pulled and plugged back in again.
5. Yet, all of the above mentioned problems do not seem to happen when the monitor transitions to power save mode on its own.