Public bug reported:
Hi everyone, I have a lenovo ideapad s405 with amd radeon HD 7400G on
xubuntu 15.04 with kernel 4.1.6-040106-generic. When I try to change the
brightness, anything happens. This problem happened with kernel
3.19.0-26 too. These are details of my video graphics:
Card: Advanced Micro Devices [AMD/ATI] Trinity [Radeon HD 7400G]
Display Server: X.Org 1.17.1 drivers: ati,radeon (unloaded: fbdev,vesa)
Resolution: 1366x768@60.0hz
GLX Renderer: Gallium 0.4 on AMD ARUBA GLX Version: 3.0 Mesa 10.5.2
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
Uname: Linux 4.1.6-040106-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.3
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Aug 26 11:04:26 2015
InstallationDate: Installed on 2015-05-15 (103 days ago)
InstallationMedia:
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug vivid
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https://bugs.launchpad.net/bugs/1488871
Title:
I can't change brightness with amd radeon HD 7400G
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