![]() ![]() ![]() My card didn't seem to have an UEFI rom according to GPU-Z on Windows. There are known issues when using 2 or more GPUs in multi-monitor configurations. It may still work for non-UEFI motherboards, try at your own risk. Failing to do so will quite likely result in issues in multi-monitor configurations and possibly even in single-monitor configurations. You are strongly recommended to flash a UEFI-compatible ROM unless your card already has it. * What are the hardware requirements for WhateverGreen?įull UEFI without CSM. With HDMI + DVI both connected, HDMI still worked, DVI was black screen, but some graphical glitches/serious tearing appeared on HDMI screen, and I could see DVI display correctly identified and active in IORegistryExplorer. With WEG boot flag radpg=15 (which actually enables CAIL_DisableDrmdmaPowerGating, CAIL_DisableGfxCGPowerGating, CAIL_DisableUVDPowerGating and CAIL_DisableVCEPowerGating) I was getting the following behaviour: HDMI working, DVI/DP not working (black screen / signal out of range / infinite display signal resync loop).īoot flag -raddvi doesn't helped to get DVI working neither, but according to WEG logging it was supposedly correcting the DVI digital transmitter for good. Solution: Adding UEFI GOP support on GPU rom allowed to fully disable CSM and do proper initialization of GPU: all displays working, sleep/wake working. Non-UEFI GOP on GPU rom was silently causing automatically CSM=enabled enforcement by motherboard bios on boot/post. Lilu 1.5.1 + WhateverGreen 1.4.8, CAIL_DisableGfxCGPowerGating=enable Reviving this old thread just to share the fix for my non-working DVI/DP on HD7750. But to describe the issue, the gradient picture below has lines in between each color change, it's not a smooth gradient ***HAHA I just realized you can't see the color banding from the screen shot on a different screen. The only way this goes away is either on a different monitor through an external port or if I spoof an 8000 or 6000 card. Here is a picture of the color banding its low color depth. My system is a laptop with the AMD dedicated card, and I have the intel ogpu disabled. Whenever my system loads from the AMD7000Controller I have color banding. If I try to spoof an AMD card in 8000 or 6000 Controller the color banding actually goes away, but then I don't have acceleration. The issue I am having is Framebuffer depth I am getting color banding as if the frame buffer isn't loading correctly. Can anyone help me with device id: 6820 R9 M375X (amd firepro w5170m) I can boot into the OS just fine either using the verde.kext or whatevergreen.kext with radpg=15. ![]()
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