This forced shutdown can potentially cause file damage, as it does not provide the user, application or system the opportunity to save work and politely close files. The Simplest, But Less-Safe Way - Simply hold down the MacBook Pro’s silver Power button in the upper-right corner of the computer’s body until it powers down (the backlight will go out, and the illuminated keyboard will go dark).If one encounters this condition, here are some ways to temporarily restore display functionality: TEMPORARY SOLUTIONS FOR REGAINING DISPLAY FUNCTIONALITY So if you are never logging out (either to switch accounts or for security), then you can certainly choose to run the MacBook with the problematic condition. It may be possible to get the advantages by manually checking and un-checking the Automatic Graphics Switching as needed for high performance graphics OR long run time.Īlso, this problem only surfaces when logging out of the account. So while this may resolve the black display problem, it may reduce battery run time. Presumably, when this feature works correctly, there are some battery power savings advantages of using the “integrated graphics” system. It may be necessary to Restart the Mac to make the change effective.Īccording to this Apple Support document, turning off Automatic Graphics Switching will will cause your MacBook Pro to always display using its higher-performance graphics hardware.Un-check the “Automatic graphics switching” checkbox at the top of the panel (above the “Battery/Power Adapter” tabs).(I don’t have a single graphics MBP with which to test.) I’m assuming that MacBooks NOT having dual graphics systems will not display this checkbox, or experience this problem. “Dual Graphics”: AMD Radeon HD 6490M + Intel HD Graphics 3000Īfter much experimentation and online research, I finally found a solution to this problem at this web page, in the section subheading “Turn Off Automatic Graphics Switching (for black screens on dual-GPU MacBook Pro only).” Even though the display is dark, the Mac is fully functional - if an external monitor is connected or if the computer is remotely viewed via remote access software (i.e., VNC, Apple Remote Desktop, TeamViewer), it can be operated normally. For the first few seconds after logout, the cursor is visible on a black field, but then disappears. Every other Log Out from some (but not all) of the user accounts, the MBP15 logs out to a black screen. For some time, I have been attempting resolve a problem with our MacBook Pro.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |