l.aluffi wrote:
@Luis Sequeira1
It seems to be a software failure related to the integrated graphic card. It started after the last update, if I remind well the last time I resized an image.
I used gfxCardStatus to force the use of integrated GPU first, and the discrete after. It happens only with the integrated. I've already updated the support staff with this information.
I hope that the sys diagnose I took the very moment the screen was purple, along with my informations, will point them in the right direction.
@Babowa
Actually I can't travel a lot, apart going to work, because health problems and I can't afford any extra physical effort. By the way, thru times, online bug report personnel showed a great competence with the few cases I filed and they never let me down. Guys up there always do a great job.
p.s. This post also implies a temporary workaround: use gfxCardStatus or open some app like photos to force the discrete graphic card to fire up.
I am glad that you are closing in on the problem and at least have a viable workaround.
It seems that my suspicions were correct.
I would just like to point out that you can force the use of the discrete GPU explicitly in System Preferences->Energy Saver,
by UNchecking the box that says "Automatic Graphics Switching".
(If it were the other way around, needing to force the use of the integrated GPU, I believe GfxCardStatus would have been the only solution)