Dev1 Galaxy Forum / Laptop AMD Graphics

Re: Laptop AMD Graphics

dummy@example.com (ToxicExMachina) — Tue, 02 Apr 2019 03:59:04 +0000

Try amdgpu (not amdgpu-pro) driver. It seems your GPU is GCN 1.1.

Re: Laptop AMD Graphics

dummy@example.com (UnclePa) — Mon, 01 Apr 2019 12:23:14 +0000

Thanks. My understanding is that DRI_PRIME won't work if xrandr doesn't see both cards. Even if it does, I've not found a driver that specifically states it supports the R7 M265 card. As best I can tell, it looks like I have an unsupported system. I got it pretty cheap and it is possible that the discrete video doesn't even work. Neither the BIOS nor the diagnostics say anything about 2 video controllers. I couldn't get dual boot to work when I first got it so I wiped Windows. I think I'll have to punt on this one as far as high end graphics games go. Not a big deal.

Re: Laptop AMD Graphics

dummy@example.com (ToxicExMachina) — Mon, 01 Apr 2019 05:00:50 +0000

UnclePa wrote:

Anyone have any experience/pointers on how to switch from the integrated controller to the discrete one?

You can try DRI_PRIME from Mesa. It's the most proper way to use hybrid graphics.

Re: Laptop AMD Graphics

dummy@example.com (Head_on_a_Stick) — Sat, 30 Mar 2019 10:56:27 +0000

Are you sure it's not listed anywhere in the plain lspci output?

Check the firmware ("BIOS") options to see if it can be enabled from there.

Re: Laptop AMD Graphics

dummy@example.com (UnclePa) — Sat, 30 Mar 2019 01:03:01 +0000

Exact same output. I found an arch wiki article about this which seems to be saying that "xrandr --listproviders" should list all available cards. However, the R5 is still the only one listed. Edit: The wiki article has a troubleshooter for that situation but I don't have an xorg.conf file nor do I have any blacklisted modules.

Re: Laptop AMD Graphics

dummy@example.com (Head_on_a_Stick) — Sat, 30 Mar 2019 00:00:26 +0000

UnclePa wrote:

"lspci | grep VGA"

How about

lspci | grep 'VGA\|3D'

Laptop AMD Graphics

dummy@example.com (UnclePa) — Fri, 29 Mar 2019 23:28:54 +0000

My laptop's graphics have only been so-so but I figured that's just the way they were. However, I was looking at the manual for my laptop and found this:

Video
Controller:
Integrated      •	 AMD A8-7100 APU with AMD Radeon R5 Graphics
                •	 AMD A10-7300 APU with AMD Radeon R6 Graphics
Discrete        AMD Radeon R7 M265 Graphics

Memory:
Integrated     Shared system memory
Discrete       2 GB DDR3

That implies to me that it actually has switchable graphics. "lspci | grep VGA" shows "VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R5 Graphics]".

Anyone have any experience/pointers on how to switch from the integrated controller to the discrete one?