[radeon] No hardware acceleration on AMD Seymour [Radeon HD 6400M/7400M Series]

[Ricardo]

Computer HP EliteBook 8460p. It uses hybrid graphics card. Processor Intel Core i5-2520M CPU @ 2.50GHz × 4; 2nd generation. The system only runs well with llvmpipe (LLVM 6.0, 256 bits) graphic software, AMD Caicos sometimes it's charged too, but the graphic display have problems and don't goes fine or fluid.
Maybe there is no support for the processor graphics because It's a little bit old. I don't know how to install AMD proprietary drivers, It maybe solve the problem.
I installed Ubuntu 20.04 LTS but don't works, It don't charge any graphic interface, only a black screen. I only uses the system in recovery mode. For that reason I returned to Ubuntu 16.04 LTS but my graphics don't have hardware acceleration, only software acceleration. When I tried to play (Super Tux Kart for example) I expected a berry poor graphic improvement, so I can't play It.
Thanks for your time and attention!

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3.1
ProcVersionSignature: Ubuntu 4.15.0-122.124~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-122-generic x86_64
.tmp.unity_support_test.1:

ApportVersion: 2.20.1-0ubuntu2.24
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Tue Oct 27 05:47:39 2020
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] [1002:6760] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Radeon HD 6470M [103c:161e]
InstallationDate: Installed on 2020-10-25 (1 days ago)
InstallationMedia: Ubuntu 16.04.7 LTS "Xenial Xerus" - Release amd64 (20200806)
MachineType: Hewlett-Packard HP EliteBook 8460p
ProcEnviron:
 LANGUAGE=es_CR:es
 PATH=(custom, no user)
 LANG=es_CR.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-122-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
Renderer: Software
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/12/2015
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SCF Ver. F.60
dmi.board.name: 161C
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 97.4E
dmi.chassis.asset.tag: IS09189
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SCFVer.F.60:bd03/12/2015:svnHewlett-Packard:pnHPEliteBook8460p:pvrA0001D02:rvnHewlett-Packard:rn161C:rvrKBCVersion97.4E:cvnHewlett-Packard:ct10:cvr:
dmi.product.family: 103C_5336AN
dmi.product.name: HP EliteBook 8460p
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.3+16.04.20180221-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.91-2~16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~16.04.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~16.04.1
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Tue Oct 27 05:43:49 2020
xserver.configfile: default
xserver.errors: AIGLX: reverting to software rendering
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.6-1ubuntu4.1~16.04.4
xserver.video_driver: radeon

[Daniel van Vugt (vanvugt)]

It appears the Xorg radeon driver is working. It's only 3D that's not working so that's Mesa.

[Timo Aaltonen (tjaalton)]

[ 39.611] (II) AIGLX: Screen 0 is not DRI2 capable
[ 39.611] (EE) AIGLX: reverting to software rendering

16.04 is just old and you're not getting any (gfx) updates there anymore at this point

[Timo Aaltonen (tjaalton)]

assuming this is fixed in a newer release, file a new bug if not