Merge pull request #1753 from johbo/add-imac-12-2

Add configuration for Apple iMac 12,2

apple/imac/12-2/README.md

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+# iMac 12,2, NixOS 25.11 (February 2025)
+
+## Audio
+
+- [x] ok
+
+## Bluetooth
+
+- [x] ok
+
+## Camera
+
+- [x] ok
+
+Observed issues with the GNOME tooling. `vlc` and `guvcview` woth work fine.
+
+## Thunderbolt
+
+- [ ] Untested
+
+## SATA
+
+- [x] ok
+
+## Suspend/Resume
+
+- [ ] Untested
+
+## WiFi
+
+- [x] ok
+
+## Graphics
+
+- [x] ok
+
+The Radeon HD 6000 series (Northern Islands) does not support `amdgpu`.
+This profile uses the `radeon` driver with DPM (Dynamic Power Management)
+disabled to prevent boot hangs.
+
+## LSPCI
+
+```
+00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
+00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
+00:02.0 Display controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
+00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
+00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Universal Host Controller #5 (rev 05)
+00:1a.7 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
+00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
+00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
+00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
+00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
+00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
+00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Universal Host Controller #1 (rev 05)
+00:1d.7 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
+00:1f.0 ISA bridge: Intel Corporation Z68 Express Chipset LPC Controller (rev 05)
+00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Desktop SATA AHCI Controller (rev 05)
+00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
+01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT]
+01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series]
+02:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM57765 Gigabit Ethernet PCIe (rev 10)
+03:00.0 Network controller: Qualcomm Atheros AR93xx Wireless Network Adapter (rev 01)
+04:00.0 FireWire (IEEE 1394): LSI Corporation FW643 [TrueFire] PCIe 1394b Controller (rev 08)
+05:00.0 PCI bridge: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+06:00.0 PCI bridge: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+06:03.0 PCI bridge: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+06:04.0 PCI bridge: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+06:05.0 PCI bridge: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+06:06.0 PCI bridge: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+07:00.0 System peripheral: Intel Corporation CV82524 Thunderbolt Controller [Light Ridge 4C 2010]
+```

apple/imac/12-2/default.nix

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+{
+  lib,
+  ...
+}:
+{
+  imports = [
+    ../.
+  ];
+
+  # AMD Radeon HD 6770M/6970M (Whistler/Turks, Northern Islands generation)
+  # DPM (Dynamic Power Management) did cause boot hangs
+  boot.kernelParams = [ "radeon.dpm=0" ];
+
+}