Screen goes black and EDID errors after Radeon driver initialization in Red Hat Enterprise Linux 6

Solution Verified - Updated -

Issue

  • During installation of RHEL 6.1, 6.2 and 6.3, the console will go black/blank. EID error messages are logged to the screen and /var/log/messages. Boot process takes longer than normal.

  • Messages logged from RHEL 6.1 & 6.2, note the Raw EDID string is blank:

Apr 20 16:34:58 hostname1 kernel: [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 193
Apr 20 16:34:58 hostname1 kernel: Raw EDID:
  • Messages logged from RHEL 6.3, note the Raw EDID string is a series of "ff ff ff...":
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 193
Raw EDID:
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
        ff ff ff ff ff ff ff ff ff 5a 41 54 4e ff ff ff
        ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • Hardware : HP DL 380 G5, G7 hardware

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