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Drivers & Software

Journeyman III

Ubuntu 16.04/17.10 dual monitors impossible with AMD PRO A10-8730B

Hi guys,

Please excuse me if you find any typos, english is not my native language.

I have a HP 745 G4 with a AMD PRO A10-8730B CPU Carrizo 2015, should be Radeon R5 graphics if I check the specs. What I understand it should be supported?

It is hooked up with a HP Ultraslim Docking Station 2013 with the latest firmware at work.

If I connect one screen with VGA and the other with Displayport both monitors works, but I want to use the two Displayport + the VGA so I can use three screens. However the problem is there only with two so I figured it is easier to explain that way. When I connect the two Displayport Ubuntu just sees one screen in the settings and the image is mirrored on screen 1 and 2, I get picture on both screens though. It is like it thinks that the both Displayport are one.

I did install the amdgpu-pro 17.40 driver without problem but nothing changed, exactly the same problem. I have tested in both 16.04 and 17.10 versions of Ubuntu (17.10 without the amdgpu-pro driver though). I also tried another machine, a HP 840 G1 with Intel Chipset in the same docking station, it worked right away, so I really think it is a driver problem.

Any tips and tricks? I would appreciate a lot if I could get some help with this.

3 Replies
Journeyman III

I have now found out that there is no "VGA" in xrandr. When I plug the VGA directly into the laptop without the docking station xrandr says that Displayport-1 is connected.

Maybe it is some kind of internal adapter from Displayport to VGA?


At the moment I am using 3840x1080 resolution on the displayport monitors and 1920x1080 on the VGA monitor, as a workaround. Works okay but would of course be better if there was a fix.

Community Manager

No APUs are supported in our AMDGPUPro driver, so these sort of issues can be expected.

Radeon Software for Linux Release Notes

AMD Radeon™ Product Compatibility

The Radeon™ Software for Linux® Driver is compatible with the following AMD products.

AMD Product Family Compatibility
Radeon™ RX Vega Series Graphics AMD Radeon™ Pro WX-series
Radeon™ Vega Frontier EditionAMD FirePro™ W9100
Radeon™ RX 550/560/570/580 Series GraphicsAMD FirePro™ W8100
AMD Radeon™ RX 460/470/480 GraphicsAMD FirePro™ W7100
AMD Radeon™ Pro DuoAMD FirePro™ W5100
AMD Radeon™ R9 Fury/Fury X/Nano GraphicsAMD FirePro™ W4300
AMD Radeon™ R9 380/380X/390/390X GraphicsAMD FirePro™ W4100
AMD Radeon™ R9 285/290/290X GraphicsAMD FirePro™ W2100
AMD Radeon™ R7 240/250/250X/260/260X/350AMD FirePro™ W600
AMD Radeon™ HD7700/7800/8500/8600AMD FirePro™ S-Series
AMD Radeon™ R9 360 GraphicsAMD Radeon™ Pro WX 9100
AMD Radeon™ R5 340