Monitor attached to Display Port connector does not wake up with rhel6.7 kernel (2.6.32-573)
Issue
- Monitor attached to Display Port (DP) connector does not wake up from blank state.
- No problem observed with same monitor attached on DVI connector using DP-DVI converter.
- Problem is observed only when system is booted in GUI mode and even when on GDM login screen hence no screensaver in picture.
- Problem is specific to rhel6.7 kernel (573). No problem with rhel6.6 kernel (504).
Environment
- Red Hat Enterprise Linux 6.7
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