Problems with AMD Crimson drivers, when AMD card is non-primary GPU?

[VirtualLarry]

I do distributed-computing, and due to some issues I wanted to test, I un-overclocked my G4400 Skylake CPU, and switched my monitor cable to using the Intel iGPU, along with setting the BIOS option for primary display to "Onboard". I left "IGD multi-monitor" set to "Disabled".

I still have my 7950 3GB card installed in the system, and I'm running BOINC, and both on the prior drivers, and the very newest Crimson May 16 hotfix drivers, and Milkyway@Home is computing on the AMD GPU.

Yet, with both sets of drivers, I could NOT open "Crimson Settings". It tells me that there is no AMD GPU! Yet, clearly, BOINC and MW@Home are using my AMD GPU. So... WTF???

It seems that AMD's drivers have yet another flaw, even though the OS supports having multiple different video cards from different vendors, their drivers and control-panel only work when they are the primary. BORKED!

So, as usual, I let out a sigh... "AMD drivers @!#$@#$".

Edit: Device Manager lists both "AMD Radeon HD 7900 Series" AND "Intel(R) HD Graphics 510".

 

[3DVagabond]

Maybe I'm misunderstanding? Are you using your AMD card's output? If not, maybe that's the issue.

 

[VirtualLarry]

Maybe I'm misunderstanding? Are you using your AMD card's output? If not, maybe that's the issue.

I don't know. I went into Resolution, hit "Detect", it showed two more smaller monitors, one for the 7950 and one for the HD 510. I clicked on the 7950 one, and told it to enable it for VGA output. Now it's showing a setting for desktop only on "1", which is my primary, my HD 510 HDMI port. I haven't rebooted though, maybe I should.

Well, after force-enabling a VGA-out on the 7950 3GB card, I rebooted, and I changed the "IGP multi-monitor" to "Enabled" in BIOS, in case that was necessary for multi-GPU support somehow.

Well, GPU-Z still won't read fanspeeds/temps on the AMD card, and I still can't start "Crimson Settings".

Edit: OK, I tried a nuke 'n pave drivers approach. I un-installed the AMD drivers, then the Intel iGPU drivers, then rebooted.

Installed Intel iGPU beta drivers 4444 for SKL / Win7 64-bit. Rebooted when prompted.

Then installed May 16 hotfix Crimson drivers. Rebooted when prompted.

Booted up, started up GPU-Z, still no readings for fanspeed and temp on the AMD 7950 3GB card.

Attempting to start "Radeon Settings", gives me a dialog box "Radeon Settings are currently not available. Please try again after connecting AMD graphics."

Allowing BOINC to run MW@Home WUs, runs on the AMD GPU, but I don't hear the fans spinning up, which really bothers me. I'm afraid I'll burn out my card running it without the drivers controlling the fans. (There was someone here on these forums that had that happen to them.)

 

[KingFatty]

I wanted to chime in with a problem like yours. I have 7950s in my machine, but when I enabled the iGPU on my 4970K and installed the intel video card drivers, the AMD drivers would no longer allow me to run eyefinity and refused to recognize three monitors simultaneously.

So it's not the same issue, but I definitely have problems when I try to use the intel video card drivers with the AMD drivers, and the result is that the AMD drivers don't perform as they should.

Just to mention: I installed the intel drivers so I could use a "low power" mode that had video output from the integrated mobo output, for when I watch movies and am not playing games.