[Bug 23103] screen not lighting up on resume when using kms

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23103





--- Comment #7 from Alex Deucher <agd5f at yahoo.com>  2009-08-05 11:12:26 PST ---
Of the registers dumped, these look like possible candidates:

--- working.regs        2009-08-03 22:18:01.000000000 -0400
+++ broken.regs 2009-08-03 22:18:15.000000000 -0400

-CONFIG_CNTL (00e0)     0x000c0100 (786688)
+CONFIG_CNTL (00e0)     0x000c0000 (786432)

-FP_GEN_CNTL (0284)     0x01430000 (21168128)
+FP_GEN_CNTL (0284)     0x00004008 (16392)

-CLK_PIN_CNTL (CL: 0001)        0x0a098015 (168394773)
+CLK_PIN_CNTL (CL: 0001)        0x00018015 (98325)

-SS_INT_CNTL (CL: 0033) 0x00200271 (2097777)
+SS_INT_CNTL (CL: 0033) 0x00200000 (2097152)

-LVDS_PLL_CNTL (02d4)   0x00091282 (594562)
+LVDS_PLL_CNTL (02d4)   0x0009128c (594572)

You can try setting the working value of the reg with radeontool, e.g.:
radeontool regset LVDS_PLL_CNTL 0x00091282
And see if changing any of them help.


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