https://bugs.freedesktop.org/show_bug.cgi?id=56081
Priority: medium Bug ID: 56081 Assignee: dri-devel@lists.freedesktop.org Summary: (SUMO2) Black screen on X Launch, corrupted VTs when using KMS Severity: major Classification: Unclassified OS: Linux (All) Reporter: autonymous@gmail.com Hardware: x86-64 (AMD64) Status: NEW Version: git Component: Drivers/DRI/R600 Product: Mesa
Created attachment 68683 --> https://bugs.freedesktop.org/attachment.cgi?id=68683&action=edit Xorg.0.log
Using AMD A4-3420M APU, have NOT been able to use the R600 driver on either Suse (12.x, factory), Arch Linux (latest built, or git xorg/mesa/dri build), or Ubuntu (12.04, 12.10b2). ALL various combinations of xorg 1.12/1.13, xorg-video-ati, mesa, and kernel 3.5-3.6 give the same black screen after startup, transition to Xorg corrupts all VT's.
KMS for Single user or non-X sessions works fine. Grub boot with "radeon.audio=0" does alleviate some corruption on VT7 (but not enough to be usable). Changing accel options or even disabling accel has no effect.
Appears there is something specific to the A4-3420M(6410D, chipID 0x9644, identified by system as a Sumo2) that is affected by this.