Public bug reported:
My AMD R7 250 GPU is being wrongly detected in Ubuntu as a Radeon HD
8830M. This results in the wrong detection of drivers. The result is a
wrongly installed driver and very poor performance. This bug has been
affecting me since Ubuntu 16.10, and still affects me in Ubuntu 17.10.
brad@brad-ubuntu:~$ lspci | grep 'VGA compatible controller'
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus
LE [Radeon HD 8830M] (rev 87)
brad@brad-ubuntu:~$ lsmod | grep -i 'radeon'
radeon 1470464 9
i2c_algo_bit 16384 2 amdgpu,radeon
ttm 94208 2 amdgpu,radeon
drm_kms_helper 167936 2 amdgpu,radeon
drm 356352 9 amdgpu,radeon,ttm,drm_kms_helper
brad@brad-ubuntu:~$ lsmod | grep -i 'amdgpu'
amdgpu 2007040 0
i2c_algo_bit 16384 2 amdgpu,radeon
ttm 94208 2 amdgpu,radeon
drm_kms_helper 167936 2 amdgpu,radeon
drm 356352 9 amdgpu,radeon,ttm,drm_kms_helper
Ubuntu installs by autodetection: xserver-xorg-video-ati. The proper
driver is, xserver-xorg-video-radeon.
However even after proper installation of the new driver. Ubuntu still
reports that I am using a mobile graphics card, instead of a desktop
graphics card.
Ubuntu reports: llvmpipe (LLVM 5.0, 128 bits) with the radeon driver.
And CAPE VERDE with the ati driver. Its a "OLAND" or "southern island"
card.
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Also affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: update-manager (Ubuntu)
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https://bugs.launchpad.net/bugs/1729377
Title:
AMD r7 250 wrong detection
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