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RX480 ubuntu 16.04 4K 30Hz Only

Question asked by hooni on Mar 10, 2017

Product Name :  PowerColor RX480 8GB.

Ubuntu virsion : 16.04

Kernel Virsion : Linux kvmhost 4.7.10-040710-generic #201610220847 SMP Sat Oct 22 12:50:14 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

 

hooni@kvmhost:~$ sudo lshw -C video

  *-display              

       description: VGA compatible controller

       product: ASPEED Graphics Family

       vendor: ASPEED Technology, Inc.

       physical id: 0

       bus info: pci@0000:09:00.0

       version: 30

       width: 32 bits

       clock: 33MHz

       capabilities: pm msi vga_controller cap_list

       configuration: driver=ast latency=0

       resources: irq:16 memory:bc000000-bdffffff memory:be000000-be01ffff ioport:4000(size=128)

  *-display

       description: VGA compatible controller

       product: Advanced Micro Devices, Inc. [AMD/ATI]

       vendor: Advanced Micro Devices, Inc. [AMD/ATI]

       physical id: 0

       bus info: pci@0000:81:00.0

       version: c7

       width: 64 bits

       clock: 33MHz

       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom

       configuration: driver=amdgpu latency=0

       resources: irq:77 memory:e0000000-efffffff memory:f0000000-f01fffff ioport:f000(size=256) memory:fbe00000-fbe3ffff memory:c0000-dffff

 

hooni@kvmhost:~$ grep -i chipset /var/log/Xorg.0.log

[   416.936] (II) RADEON: Driver for ATI/AMD Radeon chipsets:

[   416.938] (II) VESA: driver for VESA chipsets: vesa

[   416.939] (--) AMDGPU(0): Chipset: "AMD Radeon RX 480 Graphics" (ChipID = 0x67df)

 

hooni@kvmhost:~$ lsmod | grep amd

amdkfd                131072  1

amdgpu               1146880  9

ttm                    98304  2 ast,amdgpu

drm_kms_helper        147456  2 ast,amdgpu

drm                   364544  124 ast,ttm,drm_kms_helper,amdgpu

i2c_algo_bit           16384  3 ast,igb,amdgpu

 

For using RX480, I followed ubuntu community,

drivers - AMD rx 480 on 16.04 mesa - Ask Ubuntu

 

===================================================================================

 

And now, I have some problem in syslog;

Mar 10 12:34:50 kvmhost kernel: [  300.468145] [drm:drm_add_edid_modes.part.23 [drm]] *ERROR* Unknown HDMI VIC: 0

Mar 10 12:34:51 kvmhost kernel: [  301.580148] [drm:drm_add_edid_modes.part.23 [drm]] *ERROR* Unknown HDMI VIC: 0

Mar 10 12:34:51 kvmhost kernel: [  302.327907] [drm:drm_add_edid_modes.part.23 [drm]] *ERROR* Unknown HDMI VIC: 0

Mar 10 12:34:52 kvmhost kernel: [  302.676160] [drm:drm_add_edid_modes.part.23 [drm]] *ERROR* Unknown HDMI VIC: 0

 

sudo dmesg | grep drm

[ 1502.463789] [drm:drm_add_edid_modes.part.23 [drm]] *ERROR* Unknown HDMI VIC: 0

[ 1502.804936] [drm:drm_add_edid_modes.part.23 [drm]] *ERROR* Unknown HDMI VIC: 0

 

Moreover, I can't use 4K 60Hz.

The monitor can support 4K 60Hz, I checked it.

 

Could you give me a hand for fix it?

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