https://bugs.freedesktop.org/show_bug.cgi?id=34532
Summary: Properly restore CLOCK_CNTL_INDEX register
Product: xorg
Version: git
Platform: All
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=43600)
--> (https://bugs.freedesktop.org/attachment.cgi?id=43600)
Fix
RADEONRestore() restores the CLOCK_CNTL_INDEX register before calling
RADEONRestorePLLRegisters(), which modifies the CLOCK_CNTL_INDEX register
to access the PLL registers. As a result we may end up with the wrong clock
being selected when exiting X. This happens on platforms where the driver
doesn't save and restore the VGA state.
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