https://bugs.freedesktop.org/show_bug.cgi?id=107482
Bug ID: 107482 Summary: Images gamma rendering issue Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: esebaro@gmail.com
Created attachment 140962 --> https://bugs.freedesktop.org/attachment.cgi?id=140962&action=edit images gamma
I have a PC with: MB: Asrock AM1B-ITX CPU: AMD Kabini Athlon 5350 APU iGPU: Radeon HD 8400 / R3 Series Displays: DVI Asus, HDMI Samsung
kernel-4.15/4.16/4.17 xorg-server-1.19.5 xorg-drivers-1.19 xf86-video-amdgpu-18.0.1 xf86-video-ati-18.0.1 libdrm-2.4.92
When I increase the gamma to check the quality of images (xgamma -gamma 3), some pixels are darker/colorful, it seems like gamma is not applied uniformly for all pixels. This happens on all kernels with any video driver: radeon, amdgpu, amdgpu-dc.
I thought there's something wrong with the images so I've edited them on Gimp by increasing brightness or change hue/saturation. This was fine until the kernel 4.17 and the amdgpu-dc driver upgrade, images have again the issue. They are fine with amdgpu.
Is there something I can do about this? Thanks.