sudo modprobe rs880

# inxi -IGSxx
System:    Host: big31 Kernel: 4.1.13-100.fc21.x86_64 x86_64 bits: 64 compiler: gcc v: 4.9.2 Desktop: KDE 4.14.11 tk: Qt 4.8.6 
           wm: kwin dm: KDM Distro: Fedora release 21 (Twenty One) 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] RV620 PRO [Radeon HD 3470] vendor: Dell driver: radeon v: kernel 
           bus ID: 01:00.0 chip ID: 1002:95c0 
           Display: server: Fedora Project X.org 1.16.3 driver: ati,radeon alternate: fbdev,modesetting,vesa resolution: 
           1: 1920x1200~60Hz 2: 2560x1440~60Hz s-dpi: 120 
           OpenGL: renderer: N/A v: N/A direct render: N/A 
Info:      ...Shell: bash v: 4.3.42 running in: konsole inxi: 3.1.03 
# lsmod | sort | egrep 'eon|amd'
amd_iommu_v2           20480  1 amdkfd
amdkfd                 94208  1 
drm                   331776  5 ttm,drm_kms_helper,radeon
drm_kms_helper        122880  1 radeon
i2c_algo_bit           16384  1 radeon
radeon               1605632  2 
ttm                    94208  1 radeon

# inxi -IGSxx
System:    Host: big31 Kernel: 5.6.16-300.fc32.x86_64 x86_64 bits: 64 compiler: gcc v: 10.1.1 Desktop: KDE Plasma 5.18.5 
           tk: Qt 5.13.2 wm: kwin_x11 dm: KDM Distro: Fedora release 32 (Thirty Two) 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] RV620 PRO [Radeon HD 3470] vendor: Dell C120D driver: radeon v: kernel 
           bus ID: 01:00.0 chip ID: 1002:95c0 
           Display: x11 server: Fedora Project X.org 1.20.8 compositor: kwin_x11 driver: modesetting unloaded: fbdev,vesa 
           alternate: ati resolution: 1: 1920x1200~60Hz 2: 2560x1440~60Hz s-dpi: 120 
           OpenGL: renderer: AMD RV620 (DRM 2.50.0 / 5.6.16-300.fc32.x86_64 LLVM 10.0.0) v: 3.3 Mesa 20.0.7 compat-v: 3.0 
           direct render: Yes 
Info:      ...Shell: bash v: 5.0.17 running in: konsole inxi: 3.1.03 
# lsmod | egrep 'amd|eon' | sort
drm                   598016  9 drm_kms_helper,radeon,ttm
drm_kms_helper        241664  1 radeon
i2c_algo_bit           16384  1 radeon
radeon               1642496  14
ttm                   122880  1 radeon
# xrandr | egrep 'onnect|creen|\*' | grep -v disconn | sort -r
Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 8192 x 8192
DP-2 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 598mm x 336mm
DP-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   2560x1440     59.95*+  74.92  
   1920x1200     59.95*+

# inxi -IGSxx
System:    Host: big31 Kernel: 3.12.67-64-desktop x86_64 bits: 64 compiler: gcc v: 4.8.1 Desktop: Trinity R14.0.4 tk: Qt 3.5.0
           wm: Twin dm: TDM Distro: openSUSE 13.1 (Bottle)
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] RV620 PRO [Radeon HD 3470] vendor: Dell driver: radeon v: kernel
           bus ID: 01:00.0 chip ID: 1002:95c0
           Display: server: X.Org 1.14.3.901 driver: ati,radeon alternate: fbdev,fglrx,modesetting,vesa resolution:
           1: 1920x1200~60Hz 2: 2560x1440~60Hz s-dpi: 120
           Message: Unable to show advanced data. Required tool glxinfo missing.
Info:      ...Shell: bash v: 4.2.53 running in: konsole inxi: 3.1.03
# lsmod | sort | egrep 'eon|amd'
drm                   314474  5 radeon,nouveau,ttm,drm_kms_helper
drm_kms_helper         56976  2 radeon,nouveau
i2c_algo_bit           13413  2 radeon,nouveau
radeon               1417297  2
ttm                   100549  2 radeon,nouveau
# xrandr | egrep 'onnect|creen|\*' | grep -v disconn | sort -r
Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 8192 x 8192
DisplayPort-1 connected 2560x1440+1920+0 (normal left inverted right x axis y axis) 598mm x 336mm
DisplayPort-0 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   2560x1440      60.0*+   74.9
   1920x1200      60.0*+

# inxi -IGSxx
System:    Host: big41 Kernel: 5.4.20-200.fc31.x86_64 x86_64 bits: 64 compiler: gcc v: 9.2.1 Desktop: KDE Plasma 5.17.5 
           tk: Qt 5.13.2 wm: kwin_x11 dm: KDM Distro: Fedora release 31 (Thirty One) 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series] vendor: PC Partner Limited 
           driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:68f9 
           Display: server: Fedora Project X.org 1.20.6 compositor: kwin_x11 driver: modesetting unloaded: fbdev,vesa 
           alternate: ati resolution: 1920x1200~60Hz s-dpi: 96 
           OpenGL: renderer: AMD CEDAR (DRM 2.50.0 / 5.4.20-200.fc31.x86_64 LLVM 9.0.0) v: 3.3 Mesa 19.2.8 compat-v: 3.1 
           direct render: Yes 
Info:      ...Shell: bash v: 5.0.11 running in: konsole inxi: 3.1.03 
# lsmod | sort | egrep 'amd|eon'
drm                   548864  8 drm_kms_helper,radeon,ttm
drm_kms_helper        212992  1 radeon
i2c_algo_bit           16384  1 radeon
radeon               1634304  10
ttm                   122880  1 radeon
# xrandr | egrep 'onnect|creen|\*' | grep -v disconn | sort -r
Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192
HDMI-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   1920x1200     59.95*+