[Intel-gfx] Fujitsu S6010 still woes (partially)

Thomas Richter richter at rus.uni-stuttgart.de
Tue Apr 8 22:55:59 CEST 2014


On 08.04.2014 18:10, Daniel Vetter wrote:
> On Tue, Apr 8, 2014 at 2:05 PM, Thomas Richter

>> Also, from the linux suspend mechanism, /usr/lib/pm-utils/sleep.d/99video is
>> just useless or breaks more than it helps. I just removed it. It tries some
>> weird workarounds that are not beneficial, and the driver (once corrected)
>> should work without those. Instead, you can place the above into
>> sleep.d/99video plus a bit of glue logic to run it on resume. This *almost*
>> works, i.e. I do get a working display, but it is driven through the wrong
>> pipe.
>
> With the latest upstream code we _do_ enable the pipes before we fire
> up the dvo connector. Where you experiments with that? The patch was

The version I used was drm-intel-nightly, the version from last 
Saturday, pulled from the new git repository. Note, however, that I have 
the pipe A quirk disabled since it makes the boot console unusable 
(which might explain something).

For your convenience, here is the register dump before...

/* snip */

                           DCC: 0x00000000 (0000ÿÿÿÿôÏ~·Zx·)
                      CHDECMISC: 0x00000000 (none, ch2 enh disabled, ch1
enh disabled, ch0 enh disabled, flex disabled, ep not present)
                         C0DRB0: 0x00000000 (0x0000)
                         C0DRB1: 0x00000000 (0x0000)
                         C0DRB2: 0x00000000 (0x0000)
                         C0DRB3: 0x00000000 (0x0000)
                         C1DRB0: 0x00000000 (0x0000)
                         C1DRB1: 0x00000000 (0x0000)
                         C1DRB2: 0x00000000 (0x0000)
                         C1DRB3: 0x00000000 (0x0000)
                        C0DRA01: 0x00000000 (0x0000)
                        C0DRA23: 0x00000000 (0x0000)
                        C1DRA01: 0x00000000 (0x0000)
                        C1DRA23: 0x00000000 (0x0000)
                     PGETBL_CTL: 0x3ff60001
              VCLK_DIVISOR_VGA0: 0x00021207 (n = 2, m1 = 18, m2 = 7)
              VCLK_DIVISOR_VGA1: 0x00031406 (n = 3, m1 = 20, m2 = 6)
                  VCLK_POST_DIV: 0x0000888b (vga0 p1 = 13, p2 = 4, vga1
p1 = 10, p2 = 4)
                      DPLL_TEST: 0x00000000 (, DPLLA input buffer
disabled, DPLLB input buffer disabled)
                   CACHE_MODE_0: 0x00000000
                        D_STATE: 0x00000000
                  DSPCLK_GATE_D: 0x00000008 (clock gates disabled: OVRUNIT)
                 RENCLK_GATE_D1: 0x00000000
                 RENCLK_GATE_D2: 0x00000000
                          SDVOB: 0x80004084 (enabled, pipe A, stall
disabled, detected)
                          SDVOC: 0x90004084 (enabled, pipe A, stall
disabled, detected)
                        SDVOUDI: 0x00000000
                         DSPARB: 0x00017e5f
                         DSPFW1: 0x00000000
                         DSPFW2: 0x00000000
                         DSPFW3: 0x00000000
                           ADPA: 0x00000c00 (disabled, pipe A, -hsync,
-vsync)
                           LVDS: 0x00000000 (disabled, pipe A, 18 bit, 1
channel)
                           DVOA: 0x00000000 (disabled, pipe A, no stall,
-hsync, -vsync)
                           DVOB: 0x80004084 (enabled, pipe A, no stall,
-hsync, -vsync)
                           DVOC: 0x90004084 (enabled, pipe A, stall,
-hsync, -vsync)
                    DVOA_SRCDIM: 0x00000000
                    DVOB_SRCDIM: 0x00000000
                    DVOC_SRCDIM: 0x00000000
                    BLC_PWM_CTL: 0x00000000
                   BLC_PWM_CTL2: 0x00000000
                     PP_CONTROL: 0x00000000 (power target: off)
                      PP_STATUS: 0x00000000 (off, not ready, sequencing
idle)
                   PP_ON_DELAYS: 0x00000000
                  PP_OFF_DELAYS: 0x00000000
                     PP_DIVISOR: 0x00000000
                   PFIT_CONTROL: 0x00000000
                PFIT_PGM_RATIOS: 0x00000000
                PORT_HOTPLUG_EN: 0x00000000
              PORT_HOTPLUG_STAT: 0x00000000
                       DSPACNTR: 0x98000000 (enabled, pipe A)
                     DSPASTRIDE: 0x00002000 (8192 bytes)
                        DSPAPOS: 0x00000000 (0, 0)
                       DSPASIZE: 0x02ff03ff (1024, 768)
                       DSPABASE: 0x03000000
                       DSPASURF: 0x00000000
                    DSPATILEOFF: 0x00000000
                      PIPEACONF: 0x80000000 (enabled, single-wide)
                       PIPEASRC: 0x03ff02ff (1024, 768)
                      PIPEASTAT: 0x10000207 (status: CRC_DONE_ENABLE
VSYNC_INT_STATUS SVBLANK_INT_STATUS VBLANK_INT_STATUS OREG_UPDATE_STATUS)
              PIPEA_GMCH_DATA_M: 0x00000000
              PIPEA_GMCH_DATA_N: 0x00000000
                PIPEA_DP_LINK_M: 0x00000000
                PIPEA_DP_LINK_N: 0x00000000
                  CURSOR_A_BASE: 0x36b88000
               CURSOR_A_CONTROL: 0x04000027
              CURSOR_A_POSITION: 0x0090010b
                           FPA0: 0x0004150d (n = 4, m1 = 21, m2 = 13)
                           FPA1: 0x0004150d (n = 4, m1 = 21, m2 = 13)
                         DPLL_A: 0xd0820000 (enabled, dvo, default
clock, DAC/serial mode, p1 = 4, p2 = 4)
                      DPLL_A_MD: 0x00000000
                       HTOTAL_A: 0x053f03ff (1024 active, 1344 total)
                       HBLANK_A: 0x053f03ff (1024 start, 1344 end)
                        HSYNC_A: 0x049f0417 (1048 start, 1184 end)
                       VTOTAL_A: 0x032502ff (768 active, 806 total)
                       VBLANK_A: 0x032502ff (768 start, 806 end)
                        VSYNC_A: 0x03080302 (771 start, 777 end)
                      BCLRPAT_A: 0x00000000
                   VSYNCSHIFT_A: 0x00000000
                       DSPBCNTR: 0x01000000 (disabled, pipe B)
                     DSPBSTRIDE: 0x00000000 (0 bytes)
                        DSPBPOS: 0x00000000 (0, 0)
                       DSPBSIZE: 0x00000000 (1, 1)
                       DSPBBASE: 0x00000000
                       DSPBSURF: 0x00000000
                    DSPBTILEOFF: 0x00000000
                      PIPEBCONF: 0x00000000 (disabled, single-wide)
                       PIPEBSRC: 0x027f01df (640, 480)
                      PIPEBSTAT: 0x10000000 (status: CRC_DONE_ENABLE)
              PIPEB_GMCH_DATA_M: 0x00000000
              PIPEB_GMCH_DATA_N: 0x00000000
                PIPEB_DP_LINK_M: 0x00000000
                PIPEB_DP_LINK_N: 0x00000000
                  CURSOR_B_BASE: 0x00000000
               CURSOR_B_CONTROL: 0x00000000
              CURSOR_B_POSITION: 0x00000000
                           FPB0: 0x00021207 (n = 2, m1 = 18, m2 = 7)
                           FPB1: 0x00021207 (n = 2, m1 = 18, m2 = 7)
                         DPLL_B: 0x00000000 (disabled, non-dvo, VGA,
default clock, DAC/serial mode, p1 = 2, p2 = 2)
                      DPLL_B_MD: 0x00000000
                       HTOTAL_B: 0x031f027f (640 active, 800 total)
                       HBLANK_B: 0x03170287 (648 start, 792 end)
                        HSYNC_B: 0x02ef028f (656 start, 752 end)
                       VTOTAL_B: 0x020c01df (480 active, 525 total)
                       VBLANK_B: 0x020401e7 (488 start, 517 end)
                        VSYNC_B: 0x01eb01e9 (490 start, 492 end)
                      BCLRPAT_B: 0x00000000
                   VSYNCSHIFT_B: 0x00000000
              VCLK_DIVISOR_VGA0: 0x00021207
              VCLK_DIVISOR_VGA1: 0x00031406
                  VCLK_POST_DIV: 0x0000888b
                       VGACNTRL: 0x80000000 (disabled)
                         TV_CTL: 0x00000000
                         TV_DAC: 0x00000000
                       TV_CSC_Y: 0x00000000
                      TV_CSC_Y2: 0x00000000
                       TV_CSC_U: 0x00000000
                      TV_CSC_U2: 0x00000000
                       TV_CSC_V: 0x00000000
                      TV_CSC_V2: 0x00000000
                   TV_CLR_KNOBS: 0x00000000
                   TV_CLR_LEVEL: 0x00000000
                     TV_H_CTL_1: 0x00000000
                     TV_H_CTL_2: 0x00000000
                     TV_H_CTL_3: 0x00000000
                     TV_V_CTL_1: 0x00000000
                     TV_V_CTL_2: 0x00000000
                     TV_V_CTL_3: 0x00000000
                     TV_V_CTL_4: 0x00000000
                     TV_V_CTL_5: 0x00000000
                     TV_V_CTL_6: 0x00000000
                     TV_V_CTL_7: 0x00000000
                    TV_SC_CTL_1: 0x00000000
                    TV_SC_CTL_2: 0x00000000
                    TV_SC_CTL_3: 0x00000000
                     TV_WIN_POS: 0x00000000
                    TV_WIN_SIZE: 0x00000000
                TV_FILTER_CTL_1: 0x00000000
                TV_FILTER_CTL_2: 0x00000000
                TV_FILTER_CTL_3: 0x00000000
                  TV_CC_CONTROL: 0x00000000
                     TV_CC_DATA: 0x00000000
                    TV_H_LUMA_0: 0x00000000
                   TV_H_LUMA_59: 0x00000000
                  TV_H_CHROMA_0: 0x00000000
                 TV_H_CHROMA_59: 0x00000000
                   FBC_CFB_BASE: 0x00000000
                    FBC_LL_BASE: 0x00000000
                    FBC_CONTROL: 0x00000000
                    FBC_COMMAND: 0x00000000
                     FBC_STATUS: 0x00000000
                   FBC_CONTROL2: 0x00000000
                  FBC_FENCE_OFF: 0x00000000
                    FBC_MOD_NUM: 0x00000000
                        MI_MODE: 0x00000000
                   MI_ARB_STATE: 0x00000000
                 MI_RDRET_STATE: 0x00000000
                        ECOSKPD: 0x00000307
                           DP_B: 0x00000000
                 DPB_AUX_CH_CTL: 0x00000000
               DPB_AUX_CH_DATA1: 0x00000000
               DPB_AUX_CH_DATA2: 0x00000000
               DPB_AUX_CH_DATA3: 0x00000000
               DPB_AUX_CH_DATA4: 0x00000000
               DPB_AUX_CH_DATA5: 0x00000000
                           DP_C: 0x00000000
                 DPC_AUX_CH_CTL: 0x00000000
               DPC_AUX_CH_DATA1: 0x00000000
               DPC_AUX_CH_DATA2: 0x00000000
               DPC_AUX_CH_DATA3: 0x00000000
               DPC_AUX_CH_DATA4: 0x00000000
               DPC_AUX_CH_DATA5: 0x00000000
                           DP_D: 0x00000000
                 DPD_AUX_CH_CTL: 0x00000000
               DPD_AUX_CH_DATA1: 0x00000000
               DPD_AUX_CH_DATA2: 0x00000000
               DPD_AUX_CH_DATA3: 0x00000000
               DPD_AUX_CH_DATA4: 0x00000000
               DPD_AUX_CH_DATA5: 0x00000000
                     AUD_CONFIG: 0x00000000
               AUD_HDMIW_STATUS: 0x00000000
                 AUD_CONV_CHCNT: 0x00000000
                  VIDEO_DIP_CTL: 0x00000000
                  AUD_PINW_CNTR: 0x00000000
                    AUD_CNTL_ST: 0x00000000
                    AUD_PIN_CAP: 0x00000000
                   AUD_PINW_CAP: 0x00000000
             AUD_PINW_UNSOLRESP: 0x00000000
               AUD_OUT_DIG_CNVT: 0x00000000
                  AUD_OUT_CWCAP: 0x00000000
                    AUD_GRP_CAP: 0x00000000
                       FENCE  0: 0x00400131 (enabled, X tiled, 4096
pitch, 0x00400000 - 0x00600000 (2048kb))
                       FENCE  1: 0x00000000 (disabled)
                       FENCE  2: 0x01400351 (enabled, X tiled, 16384
pitch, 0x01400000 - 0x01c00000 (8192kb))
                       FENCE  3: 0x03000561 (enabled, X tiled, 32768
pitch, 0x03000000 - 0x05000000 (32768kb))
                       FENCE  4: 0x02000561 (enabled, X tiled, 32768
pitch, 0x02000000 - 0x04000000 (32768kb))
                       FENCE  5: 0x00000000 (disabled)
                       FENCE  6: 0x00000000 (disabled)
                       FENCE  7: 0x00000000 (disabled)
                       FENCE  8: 0x00000000 (disabled)
                       FENCE  9: 0x00000000 (disabled)
                      FENCE  10: 0x00000000 (disabled)
                      FENCE  11: 0x00000000 (disabled)
                      FENCE  12: 0x00000048 (disabled)
                      FENCE  13: 0x00000002 (disabled)
                      FENCE  14: 0x00000000 (disabled)
                      FENCE  15: 0x00000000 (disabled)
                  FENCE START 0: 0x00000000 (disabled)
                    FENCE END 0: 0x00000000 (disabled)
                  FENCE START 1: 0x00000000 (disabled)
                    FENCE END 1: 0x00000000 (disabled)
                  FENCE START 2: 0x00000048 (disabled)
                    FENCE END 2: 0x00000002 (disabled)
                  FENCE START 3: 0x00000000 (disabled)
                    FENCE END 3: 0x00000000 (disabled)
                  FENCE START 4: 0x00000000 (disabled)
                    FENCE END 4: 0x00000000 (disabled)
                  FENCE START 5: 0x00000000 (disabled)
                    FENCE END 5: 0x00000000 (disabled)
                  FENCE START 6: 0x00000000 (disabled)
                    FENCE END 6: 0x00000000 (disabled)
                  FENCE START 7: 0x00000000 (disabled)
                    FENCE END 7: 0x00000000 (disabled)
                  FENCE START 8: 0x00000000 (disabled)
                    FENCE END 8: 0x00000000 (disabled)
                  FENCE START 9: 0x00000000 (disabled)
                    FENCE END 9: 0x00000000 (disabled)
                 FENCE START 10: 0x00000000 (disabled)
                   FENCE END 10: 0x00000000 (disabled)
                 FENCE START 11: 0x00000000 (disabled)
                   FENCE END 11: 0x00000000 (disabled)
                 FENCE START 12: 0x00000000 (disabled)
                   FENCE END 12: 0x00000000 (disabled)
                 FENCE START 13: 0x00000000 (disabled)
                   FENCE END 13: 0x00000000 (disabled)
                 FENCE START 14: 0x00000000 (disabled)
                   FENCE END 14: 0x00000000 (disabled)
                 FENCE START 15: 0x00000000 (disabled)
                   FENCE END 15: 0x00000000 (disabled)
                        INST_PM: 0x00000000
pipe A dot 65000 n 4 m1 21 m2 13 p1 4 p2 4
pipe B dot 327000 n 2 m1 18 m2 7 p1 2 p2 2

/* snip */

the suspend to RAM, and ...

/* snip */

                          DCC: 0x00000000 (0000ÿÿÿÿô|·Z³u·)
                      CHDECMISC: 0x00000000 (none, ch2 enh disabled, ch1
enh disabled, ch0 enh disabled, flex disabled, ep not present)
                         C0DRB0: 0x00000000 (0x0000)
                         C0DRB1: 0x00000000 (0x0000)
                         C0DRB2: 0x00000000 (0x0000)
                         C0DRB3: 0x00000000 (0x0000)
                         C1DRB0: 0x00000000 (0x0000)
                         C1DRB1: 0x00000000 (0x0000)
                         C1DRB2: 0x00000000 (0x0000)
                         C1DRB3: 0x00000000 (0x0000)
                        C0DRA01: 0x00000000 (0x0000)
                        C0DRA23: 0x00000000 (0x0000)
                        C1DRA01: 0x00000000 (0x0000)
                        C1DRA23: 0x00000000 (0x0000)
                     PGETBL_CTL: 0x3ff60001
              VCLK_DIVISOR_VGA0: 0x00021207 (n = 2, m1 = 18, m2 = 7)
              VCLK_DIVISOR_VGA1: 0x00031406 (n = 3, m1 = 20, m2 = 6)
                  VCLK_POST_DIV: 0x0000888b (vga0 p1 = 13, p2 = 4, vga1
p1 = 10, p2 = 4)
                      DPLL_TEST: 0x00000000 (, DPLLA input buffer
disabled, DPLLB input buffer disabled)
                   CACHE_MODE_0: 0x001f0000
                        D_STATE: 0x00000000
                  DSPCLK_GATE_D: 0x00000008 (clock gates disabled: OVRUNIT)
                 RENCLK_GATE_D1: 0x00000000
                 RENCLK_GATE_D2: 0x00000000
                          SDVOB: 0x80004084 (enabled, pipe A, stall
disabled, detected)
                          SDVOC: 0x90004084 (enabled, pipe A, stall
disabled, detected)
                        SDVOUDI: 0x00000000
                         DSPARB: 0x00017e5f
                         DSPFW1: 0x00000000
                         DSPFW2: 0x00000000
                         DSPFW3: 0x00000000
                           ADPA: 0x00000000 (disabled, pipe A, -hsync,
-vsync)
                           LVDS: 0x00000000 (disabled, pipe A, 18 bit, 1
channel)
                           DVOA: 0x00000000 (disabled, pipe A, no stall,
-hsync, -vsync)
                           DVOB: 0x80004084 (enabled, pipe A, no stall,
-hsync, -vsync)
                           DVOC: 0x90004084 (enabled, pipe A, stall,
-hsync, -vsync)
                    DVOA_SRCDIM: 0x00000000
                    DVOB_SRCDIM: 0x00000000
                    DVOC_SRCDIM: 0x00000000
                    BLC_PWM_CTL: 0x00000000
                   BLC_PWM_CTL2: 0x00000000
                     PP_CONTROL: 0x00000000 (power target: off)
                      PP_STATUS: 0x00000000 (off, not ready, sequencing
idle)
                   PP_ON_DELAYS: 0x00000000
                  PP_OFF_DELAYS: 0x00000000
                     PP_DIVISOR: 0x00000000
                   PFIT_CONTROL: 0x00000000
                PFIT_PGM_RATIOS: 0x00000000
                PORT_HOTPLUG_EN: 0x00000000
              PORT_HOTPLUG_STAT: 0x00000000
                       DSPACNTR: 0x98000000 (enabled, pipe A)
                     DSPASTRIDE: 0x00002000 (8192 bytes)
                        DSPAPOS: 0x00000000 (0, 0)
                       DSPASIZE: 0x02ff03ff (1024, 768)
                       DSPABASE: 0x03000000
                       DSPASURF: 0x00000000
                    DSPATILEOFF: 0x00000000
                      PIPEACONF: 0x80000000 (enabled, single-wide)
                       PIPEASRC: 0x03ff02ff (1024, 768)
                      PIPEASTAT: 0x10000207 (status: CRC_DONE_ENABLE
VSYNC_INT_STATUS SVBLANK_INT_STATUS VBLANK_INT_STATUS OREG_UPDATE_STATUS)
              PIPEA_GMCH_DATA_M: 0x00000000
              PIPEA_GMCH_DATA_N: 0x00000000
                PIPEA_DP_LINK_M: 0x00000000
                PIPEA_DP_LINK_N: 0x00000000
                  CURSOR_A_BASE: 0x36b88000
               CURSOR_A_CONTROL: 0x04000027
              CURSOR_A_POSITION: 0x00040007
                           FPA0: 0x0004150d (n = 4, m1 = 21, m2 = 13)
                           FPA1: 0x0004150d (n = 4, m1 = 21, m2 = 13)
                         DPLL_A: 0xd0820000 (enabled, dvo, default
clock, DAC/serial mode, p1 = 4, p2 = 4)
                      DPLL_A_MD: 0x00000000
                       HTOTAL_A: 0x053f03ff (1024 active, 1344 total)
                       HBLANK_A: 0x053f03ff (1024 start, 1344 end)
                        HSYNC_A: 0x049f0417 (1048 start, 1184 end)
                       VTOTAL_A: 0x032502ff (768 active, 806 total)
                       VBLANK_A: 0x032502ff (768 start, 806 end)
                        VSYNC_A: 0x03080302 (771 start, 777 end)
                      BCLRPAT_A: 0x00000000
                   VSYNCSHIFT_A: 0x00000000
                       DSPBCNTR: 0x00000000 (disabled, pipe A)
                     DSPBSTRIDE: 0x00000000 (0 bytes)
                        DSPBPOS: 0x00000000 (0, 0)
                       DSPBSIZE: 0x00000000 (1, 1)
                       DSPBBASE: 0x00000000
                       DSPBSURF: 0x00000000
                    DSPBTILEOFF: 0x00000000
                      PIPEBCONF: 0x00000000 (disabled, single-wide)
                       PIPEBSRC: 0x00000000 (1, 1)
                      PIPEBSTAT: 0x10000004 (status: CRC_DONE_ENABLE
SVBLANK_INT_STATUS)
              PIPEB_GMCH_DATA_M: 0x00000000
              PIPEB_GMCH_DATA_N: 0x00000000
                PIPEB_DP_LINK_M: 0x00000000
                PIPEB_DP_LINK_N: 0x00000000
                  CURSOR_B_BASE: 0x00000000
               CURSOR_B_CONTROL: 0x00000000
              CURSOR_B_POSITION: 0x00000000
                           FPB0: 0x00021207 (n = 2, m1 = 18, m2 = 7)
                           FPB1: 0x00021207 (n = 2, m1 = 18, m2 = 7)
                         DPLL_B: 0x00000000 (disabled, non-dvo, VGA,
default clock, DAC/serial mode, p1 = 2, p2 = 2)
                      DPLL_B_MD: 0x00000000
                       HTOTAL_B: 0x00000000 (1 active, 1 total)
                       HBLANK_B: 0x00000000 (1 start, 1 end)
                        HSYNC_B: 0x00000000 (1 start, 1 end)
                       VTOTAL_B: 0x00000000 (1 active, 1 total)
                       VBLANK_B: 0x00000000 (1 start, 1 end)
                        VSYNC_B: 0x00000000 (1 start, 1 end)
                      BCLRPAT_B: 0x00000000
                   VSYNCSHIFT_B: 0x00000000
              VCLK_DIVISOR_VGA0: 0x00021207
              VCLK_DIVISOR_VGA1: 0x00031406
                  VCLK_POST_DIV: 0x0000888b
                       VGACNTRL: 0x80000000 (disabled)
                         TV_CTL: 0x00000000
                         TV_DAC: 0x00000000
                       TV_CSC_Y: 0x00000000
                      TV_CSC_Y2: 0x00000000
                       TV_CSC_U: 0x00000000
                      TV_CSC_U2: 0x00000000
                       TV_CSC_V: 0x00000000
                      TV_CSC_V2: 0x00000000
                   TV_CLR_KNOBS: 0x00000000
                   TV_CLR_LEVEL: 0x00000000
                     TV_H_CTL_1: 0x00000000
                     TV_H_CTL_2: 0x00000000
                     TV_H_CTL_3: 0x00000000
                     TV_V_CTL_1: 0x00000000
                     TV_V_CTL_2: 0x00000000
                     TV_V_CTL_3: 0x00000000
                     TV_V_CTL_4: 0x00000000
                     TV_V_CTL_5: 0x00000000
                     TV_V_CTL_6: 0x00000000
                     TV_V_CTL_7: 0x00000000
                    TV_SC_CTL_1: 0x00000000
                    TV_SC_CTL_2: 0x00000000
                    TV_SC_CTL_3: 0x00000000
                     TV_WIN_POS: 0x00000000
                    TV_WIN_SIZE: 0x00000000
                TV_FILTER_CTL_1: 0x00000000
                TV_FILTER_CTL_2: 0x00000000
                TV_FILTER_CTL_3: 0x00000000
                  TV_CC_CONTROL: 0x00000000
                     TV_CC_DATA: 0x00000000
                    TV_H_LUMA_0: 0x00000000
                   TV_H_LUMA_59: 0x00000000
                  TV_H_CHROMA_0: 0x00000000
                 TV_H_CHROMA_59: 0x00000000
                   FBC_CFB_BASE: 0x00000000
                    FBC_LL_BASE: 0x00000000
                    FBC_CONTROL: 0x00000000
                    FBC_COMMAND: 0x00000000
                     FBC_STATUS: 0x00000000
                   FBC_CONTROL2: 0x00000000
                  FBC_FENCE_OFF: 0x00000000
                    FBC_MOD_NUM: 0x00000000
                        MI_MODE: 0x00000000
                   MI_ARB_STATE: 0x00000000
                 MI_RDRET_STATE: 0x00000000
                        ECOSKPD: 0x00000307
                           DP_B: 0x00000000
                 DPB_AUX_CH_CTL: 0x00000000
               DPB_AUX_CH_DATA1: 0x00000000
               DPB_AUX_CH_DATA2: 0x00000000
               DPB_AUX_CH_DATA3: 0x00000000
               DPB_AUX_CH_DATA4: 0x00000000
               DPB_AUX_CH_DATA5: 0x00000000
                           DP_C: 0x00000000
                 DPC_AUX_CH_CTL: 0x00000000
               DPC_AUX_CH_DATA1: 0x00000000
               DPC_AUX_CH_DATA2: 0x00000000
               DPC_AUX_CH_DATA3: 0x00000000
               DPC_AUX_CH_DATA4: 0x00000000
               DPC_AUX_CH_DATA5: 0x00000000
                           DP_D: 0x00000000
                 DPD_AUX_CH_CTL: 0x00000000
               DPD_AUX_CH_DATA1: 0x00000000
               DPD_AUX_CH_DATA2: 0x00000000
               DPD_AUX_CH_DATA3: 0x00000000
               DPD_AUX_CH_DATA4: 0x00000000
               DPD_AUX_CH_DATA5: 0x00000000
                     AUD_CONFIG: 0x00000000
               AUD_HDMIW_STATUS: 0x00000000
                 AUD_CONV_CHCNT: 0x00000000
                  VIDEO_DIP_CTL: 0x00000000
                  AUD_PINW_CNTR: 0x00000000
                    AUD_CNTL_ST: 0x00000000
                    AUD_PIN_CAP: 0x00000000
                   AUD_PINW_CAP: 0x00000000
             AUD_PINW_UNSOLRESP: 0x00000000
               AUD_OUT_DIG_CNVT: 0x00000000
                  AUD_OUT_CWCAP: 0x00000000
                    AUD_GRP_CAP: 0x00000000
                       FENCE  0: 0x00400131 (enabled, X tiled, 4096
pitch, 0x00400000 - 0x00600000 (2048kb))
                       FENCE  1: 0x00000000 (disabled)
                       FENCE  2: 0x01400351 (enabled, X tiled, 16384
pitch, 0x01400000 - 0x01c00000 (8192kb))
                       FENCE  3: 0x03000561 (enabled, X tiled, 32768
pitch, 0x03000000 - 0x05000000 (32768kb))
                       FENCE  4: 0x02000561 (enabled, X tiled, 32768
pitch, 0x02000000 - 0x04000000 (32768kb))
                       FENCE  5: 0x00000000 (disabled)
                       FENCE  6: 0x00000000 (disabled)
                       FENCE  7: 0x00000000 (disabled)
                       FENCE  8: 0x00000000 (disabled)
                       FENCE  9: 0x00000000 (disabled)
                      FENCE  10: 0x00000000 (disabled)
                      FENCE  11: 0x00000000 (disabled)
                      FENCE  12: 0x00000048 (disabled)
                      FENCE  13: 0x00000002 (disabled)
                      FENCE  14: 0x00000000 (disabled)
                      FENCE  15: 0x00000000 (disabled)
                  FENCE START 0: 0x00000000 (disabled)
                    FENCE END 0: 0x00000000 (disabled)
                  FENCE START 1: 0x00000000 (disabled)
                    FENCE END 1: 0x00000000 (disabled)
                  FENCE START 2: 0x00000048 (disabled)
                    FENCE END 2: 0x00000002 (disabled)
                  FENCE START 3: 0x00000000 (disabled)
                    FENCE END 3: 0x00000000 (disabled)
                  FENCE START 4: 0x00000000 (disabled)
                    FENCE END 4: 0x00000000 (disabled)
                  FENCE START 5: 0x00000000 (disabled)
                    FENCE END 5: 0x00000000 (disabled)
                  FENCE START 6: 0x00000000 (disabled)
                    FENCE END 6: 0x00000000 (disabled)
                  FENCE START 7: 0x00000000 (disabled)
                    FENCE END 7: 0x00000000 (disabled)
                  FENCE START 8: 0x00000000 (disabled)
                    FENCE END 8: 0x00000000 (disabled)
                  FENCE START 9: 0x00000000 (disabled)
                    FENCE END 9: 0x00000000 (disabled)
                 FENCE START 10: 0x00000000 (disabled)
                   FENCE END 10: 0x00000000 (disabled)
                 FENCE START 11: 0x00000000 (disabled)
                   FENCE END 11: 0x00000000 (disabled)
                 FENCE START 12: 0x00000000 (disabled)
                   FENCE END 12: 0x00000000 (disabled)
                 FENCE START 13: 0x00000000 (disabled)
                   FENCE END 13: 0x00000000 (disabled)
                 FENCE START 14: 0x00000000 (disabled)
                   FENCE END 14: 0x00000000 (disabled)
                 FENCE START 15: 0x00000000 (disabled)
                   FENCE END 15: 0x00000000 (disabled)
                        INST_PM: 0x00000000
pipe A dot 65000 n 4 m1 21 m2 13 p1 4 p2 4
pipe B dot 327000 n 2 m1 18 m2 7 p1 2 p2 2

/* snip */

resume from the suspend state, after wakeup. As you see, register 
contents are quite different, thus apparently, something goes wrong 
there. I'm not sure whether the BIOS intercepts here in some strange 
way, but at least the chip is not reconfigured in the same way as it was 
during bootstrap.

Greetings,
	Thomas




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