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Hi, Running Catalina 10.15.7 here and ran into a strange issue. Just got my new Dell 4021QW, everything boots and works until after I login. After the login the screen goes dark and the display detects no DP signal. No comes the strange part, when I move the DP cable to the other DP port on the...

Hi, I just got a Dell U3818dw screen in addition to my U3417dw one and ran into a funny problem. Both screens get detected and work, but when I rotate the 2nd screen to portrait in the settings, the first one gets smaller and mirrored to the second. I have an ATI RX 570. The card def. can run...

Hi! I have a very stable working Dual Xeon running Sierra. Every time I try to upgrade I get an error (attached) though, sounds familiar to anyone? Best, Markus

Hi Guys, I ran into a weird issue when trying to upgrade or install High Sierra (both result in the same error). Error is: preemption_level2. possible cause: blocking while holding a spinlock, or within interrupt...

Hi! It seems I need to upgrade my graphics cards for XCode 9, currently have a ATI 6870. I am really puzzled that there are only NVidia cards on the recommended buying list. They seem to work only with special drivers and the forum is full of people who run into issues every time there is an...

Hi! I have a dual screen setup, Dell U3415W and Dell U2711 on a ATI 6870. Everything worked fine until 10.12.3. After updating to either 10.12.4 or 10.12.5 my the U3415W shows banding, very noticeable when the login screen fades in (looks like a 256 color display). Switching ports doesn't help...

I have the following setup: X9Dai, 2 x E5-2690v1 (Sandy Bridge) Definition: MacPro 6,1 Everything works fine with no SSDT and NullCpuPowerManagement.kext, but the performance is a lot lower than it should be as a result. I've been pulling my hair over this for the last month. I can't seem to...