Hello everyone! This is my first topic in this forums i just made my account. Returning opensuse Linux here, my first steps with it was back in 2007/2008 with SUSE 10.0 (heh i was young back then ). So recently i bought myself a second PC (HP EliteDesk 705 G1 small form factor) especially to run exclusevly Linux on it, i choose it because it has an AMD A8 A8-6500B with Radeon HD 8570D (APU integrated) CPU, which i have turned off in BIOS, and i have put inside a small form Radeon HD7470 “Caicos” videocard just to offload the processor. So my question is which of these two is my system using, i got my doubts because of the lspci command output specifically: lspci -k | grep -EA3 ‘VGA|3D|Display’
The output of which is:
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8570D]
Subsystem: Hewlett-Packard Company Device 2215
Kernel driver in use: radeon
Kernel modules: radeon, amdgpu
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XT [Radeon HD 7470/8470 / R5 235/310 OEM]
Subsystem: Dell Radeon HD 7470
Kernel driver in use: radeon
Kernel modules: radeon, amdgpu
Also, exactly which drivers i am running, because seeing radeon and amdgpu on one confuses me a bit, shouldnt it be just one of these? like only radeon or only amdgpu. Beside this everything is running pretty smooth so far. Thanks for the replies in advance.
PS: the system is Leap 15.5 with Kernel 5.14.21
WELCOME!
You can check which one is working by only having your momitors connected to the GPU you want to test, in my experience it should be automatic and you should not have to touch the internal GPU settings at all in order to use an external GPU, that is, unless its on a laptop. Thats a whole other story I know nothing about.
In summary it should just be automatic based on what your screen(s) are plugged into.
Also, I have a tumbleweed system that says this too in regard to the AMD GPU that is in it right now.
If you find it funny…
My desktop
Core i3 duo, AMD Radeon whateveritscalled (starts with a 2)
My main computer
Core i5 6th gen, integrated graphics, way faster! Because the CPU is actually fast enough to outpace. Keep up with the GPU
inxi -GSaz --vs does a good job of identifying what the situation is with graphics. Though the version in 15.5 is old and broken, sudo inxi -U can upgrade it to the current version.
Typically with desktop PCs, the connectors used determine which GPU is in use. Often, the motherboard’s output connectors are disabled when a discrete GPU card is installed, but the BIOS configuration may alter that.
Once you understand how to switch between your two GPUs, the glmark2 command can report performance for whichever is in use. I suspect your A8 A8-6500B would show the better score.
Basically the CPU in my desktop is so slow that the GPU never runs at full power but the CPU in my laptop is fast enough to outpace the GPU
In simple terms
My Desktop : CPU bottleneck
My Laptop : GPU bottleneck
Now with your computer I suspect that your internal GPU will be faster as the numbers seem to suggest. However you might be on to something with this whole use a lesser external GPU taking some load off the processor, I would ask someone who knows a bit more about how this situation plays out than I do
). So recently i bought myself a second PC (HP EliteDesk 705 G1 small form factor) especially to run exclusevly Linux on it, i choose it because it has an AMD A8 A8-6500B with Radeon HD 8570D (APU integrated) CPU, which i have turned off in BIOS, and i have put inside a small form Radeon HD7470 “Caicos” videocard just to offload the processor. So my question is which of these two is my system using, i got my doubts because of the lspci command output specifically: lspci -k | grep -EA3 ‘VGA|3D|Display’
