Wrong Display Resolution at Rock Pi 4, Kernel 5.4.13


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I connect the rockpi 4 to a Samsung display whose normal resolution is 1680x1050 via a hdmi to dvi line, but the maxium resolution I can choose is 1280x1024. 

And when I connect it to a 4K tv via hdmi, the maxium resolution is 1920x1080, not 3840x2160.

The legacy kernel (4.4.210) works perfectly in both cases.

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Probably not supported yet.   Try - Chromium > chrome://gpu

 

I get

Quote

Graphics Feature Status

Canvas: Software only, hardware acceleration unavailable

Flash: Unavailable

Flash Stage3D: Unavailable

Flash Stage3D Baseline profile: Unavailable

Compositing: Unavailable

Multiple Raster Threads: Force enabled

Out-of-process Rasterization: Unavailable

Hardware Protected Video Decode: Unavailable

Rasterization: Hardware accelerated

Skia Renderer: Disabled

Video Decode: Unavailable

Viz Display Compositor: Enabled

Viz Hit-test Surface Layer: Enabled

Vulkan: Disabled

WebGL: Hardware accelerated but at reduced performance

WebGL2: Unavailable

 

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