https://bugzilla.kernel.org/show_bug.cgi?id=44851
Summary: resume to black screen
Product: Drivers
Version: 2.5
Kernel Version: 3.5.0-3
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
AssignedTo: drivers_video-...@kernel-bugs.osdl.org
ReportedBy: energo...@gmail.com
Regression: No
System: iMac 11,2 (mid2010) with AMD radeon 4670.
kernel 3.5.0-3 used on ubuntu 12.10. No swap partition.
Boot requires nomodeset on kernel command line, else black screen (even for
text-only boot. Radeon module disconnects wrong display port).
Resume after suspend shows black screen, but reboots using Ctl-Alt-Del, so has
resumed from suspend. Suspect kms invoked on resume and radeon disconnects
wrong display port.
Same behaviour on archlinux using kernel 3.4.4-1.
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