https://bugs.freedesktop.org/show_bug.cgi?id=62882

Priority: medium Bug ID: 62882 Assignee: dri-devel@lists.freedesktop.org Summary: Lockup after attempt to enable discrete Radeon GPU on Linux 3.9rc4 Severity: normal Classification: Unclassified OS: Linux (All) Reporter: runetmember@gmail.com Hardware: x86-64 (AMD64) Status: NEW Version: unspecified Component: DRM/Radeon Product: DRI

Created attachment 77173 --> https://bugs.freedesktop.org/attachment.cgi?id=77173&action=edit crash log

When I try to enable discrete GPU I get kernel module crash (please look into attached log) and system lockup (few seconds later).

Software: Kubuntu 13.04 x86_64 updated from Canonical X Staging PPA (there is just stable X.Org Server 1.14, stable Mesa 9.1 and stable 7.1.0 radeon driver) Linux 3.9rc4 Mesa: 9.1 libdrm-radeon1: 2.4.43 xserver-xorg-video-radeon: 7.1.0 xserver-xorg-core: 1.14.0

Hardware: Acer Aspire 7560G laptop, AMD APU A8-3500M with integrated Radeon HD 6620G (SUMO) Discrete AMD Radeon HD 6650M (TURKS)

"xrandr --listproviders" output: Providers: number : 2 Provider 0: id: 138 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 3 associated providers: 1 name:radeon Provider 1: id: 85 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 6 outputs: 0 associated providers: 1 name:radeon