https://bugs.freedesktop.org/show_bug.cgi?id=94249
Bug ID: 94249 Summary: Linux incorrectly detects a Radeon GPU Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: krejzi@email.com
I've recently got a HP Probook 470 G3 laptop, which has an onboard Intel Skylake Graphics and an AMD Radeon R7 M340 GPU.
However, the Linux seems to detect the GPU as following:
01:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] [1002:6900] (rev 83)
Which makes it a GCN 1.2 GPU which tries to use AMDGPU. That of course doesn't work. The driver loads, but as soon as it does, it corrupts all the available data from lspci -v output. I also can't use it with DRI_PRIME, since X server crashes while loading amdgpu (probably due to it not being an amdgpu supported GPU).
Wikipedia identifies the mentioned card as GCN 1.0 OLAND GPU. Windows catalyst also claims it's R7 M340 and not R7 M360.
It's probably a BIOS issue, but can it be worked around somehow?