http://bugs.freedesktop.org/show_bug.cgi?id=27106
Summary: Possibly bad BIOS in Lenovo T500
Product: xorg
Version: 7.5
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=34103)
--> (http://bugs.freedesktop.org/attachment.cgi?id=34103)
Patch to detect Lenovo T500 and override pll parameters
Commit 86cb2bbfda2cf402aee46779ee90bbb7d915482b drm/radeon/kms: use lcd pll
limits when available from drm-radeon-testing git breaks on Lenovo T500 laptop.
Immediately on KMS init the screen goes white with colored lines, then fades to
black.
BIOS reports 45000/60000 for LCD min/max, while normal min/max is 90000/120000.
Forcing the normal values over the lcd values makes things work.
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