Bug 60623 - White Screen on boot with radeon.dpm=1
Summary: White Screen on boot with radeon.dpm=1
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: x86-64 Linux
: P1 blocking
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-07-25 14:57 UTC by John
Modified: 2019-03-05 01:09 UTC (History)
3 users (show)

See Also:
Kernel Version: 3.11.0-999-generic
Subsystem:
Regression: No
Bisected commit-id:

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Description John 2013-07-25 14:57:53 UTC 
Using the latest ubuntu built kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/, and enabling the boot option of radeon.dpm=1 . Results in a black screen after grub that eventually turns white gradually. Removing the option allows the laptop to function perfectly with the AMD 3650 video card.

Hardware:
-Lenovo T500 with AMD 3650 and a Intel 4500MHD switchable graphics off.
-more info at http://support.lenovo.com/en_US/detail.page?LegacyDocID=MIGR-71785

Software:
-clean install of Kubuntu 13.04 with beta ppa enabled for KDE 4.11 rc2
-xorg-edgers ppa enabled
Comment 1 Alex Deucher 2013-07-25 15:32:50 UTC 
Duplicate of:
https://bugs.freedesktop.org/show_bug.cgi?id=66963
Comment 2 anonymous 2019-03-05 01:09:26 UTC 
https://bugzilla.kernel.org/show_bug.cgi?id=202739 might be a fix.
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