[Bug 83531] New: radeon 6650m cannot boot without radeon.runpm=0
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Sat Aug 30 09:25:32 PDT 2014
https://bugzilla.kernel.org/show_bug.cgi?id=83531
Bug ID: 83531
Summary: radeon 6650m cannot boot without radeon.runpm=0
Product: Drivers
Version: 2.5
Kernel Version: 3.13-3.15.10
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri at kernel-bugs.osdl.org
Reporter: kvbevsauce at gmail.com
Regression: No
my laptop is a lenovo z575 with an amd a6-3420 apu and a 6650m for hybrid
graphics. I am running fedora 20 with the latest kernel of 3.15.10
ever since I updated to kernel 3.13 sometime ago when hybrid DPM was enabled my
laptop will not boot without the above kernel parameter.
i have the plymouth boot screen disabled so it shows text based boot. the
moment the boot text "fedora 20 hisenbug" shows up, between 3 and 5 seconds
later the cursor will stop blinking and the system will be frozen. sometimes
more boot text shows up after sometimes not.
any help to get dynamic power management working.
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