https://bugs.freedesktop.org/show_bug.cgi?id=52256
Bug #: 52256 Summary: KMS doesn't work with radeon HD 7520G Classification: Unclassified Product: DRI Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: lrn1986@gmail.com
Created attachment 64375 --> https://bugs.freedesktop.org/attachment.cgi?id=64375 syslog (the result of modeprobe -v radeon modeset=1)
3.4.4 boots into black screen (backlight is off). Boots fine with radeon.modeset=0 (with appropriate lack of 3D acceleration). Boots fine with radeon being blacklisted (same as above). amd64 microcode is installed. Installed ARUBA_* firmware manually (not packaged for Debian yet). Compiled fresh libdrm, mesa and xf86-video-ati from git (installed into /usr/xorg, added that directory to modulepath in xorg.conf, added /usr/xorg/lib to /etc/ld.so.conf.d/a-local-xorg.conf ssh'ed into my laptop, issued sudo modprobe -v drm debug=1 && sudo modprobe -v radeon modeset=1 Black screen all over again :(