Hi! I'm currently trying to enable the 2nd display on our Bay Trail Atom E3845 SoC. This is on the Congatec SoM "conga-QA3": http://www.congatec.com/en/products/qseven/conga-qa3.html On this SoM, the eDP is converted to LVDS via an NXP PTN3460 and available as LVDS on the baseboard. My current setup is that the 1st display is connected to HDMI1. This works just fine. In the production version I would like to use a LVDS display connected via eDP from the Bay Trail Atom. Since we don't have this LVDS display yet, I'm currently testing with this LVDS -> DVI adapter board: http://www.congatec.com/de/produkte/zubehoer/conga-ldvi.html So my current setup for this 2nd display is: eDP -> LVDS -> DVI which does not work. Here my xrandr output: Screen 0: minimum 8 x 8, current 1920 x 1200, maximum 32767 x 32767 DP1 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) HDMI1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 597mm x 336mm 1920x1200 59.95* 1920x1080 60.00 1600x1200 60.00 1680x1050 59.88 1280x1024 75.02 60.02 1280x800 59.91 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 640x480 75.00 59.94 720x400 70.08 HDMI2 disconnected (normal left inverted right x axis y axis) VGA1 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) When I now try to add and enable DP1 (this is the correct port for the eDP, right?), then I get these errors / warnings: sudo xrandr -d :0 --output DP1 --addmode DP1 640x480 sudo dmesg -c [ 189.049312] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 189.049322] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=391, cursor=63, sprite0=0, sprite1=0, SR: plane=903, cursor=0 level=0 cxsr=1 [ 189.050924] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 189.050934] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=391, cursor=0, sprite0=0, sprite1=0, SR: plane=903, cursor=0 level=0 cxsr=1 sudo xrandr -d :0 --output DP1 --mode 640x480 --right-of HDMI1 sudo dmesg -c [ 206.066238] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 206.066248] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=391, cursor=63, sprite0=0, sprite1=0, SR: plane=903, cursor=0 level=0 cxsr=1 [ 206.075015] [drm:drm_mode_addfb2] [FB:47] [ 206.075208] [drm:drm_mode_setcrtc] [CRTC:26:pipe A] [ 206.075238] [drm:drm_mode_setcrtc] [CONNECTOR:41:HDMI-A-1] [ 206.076190] [drm:drm_mode_setcrtc] [CRTC:26:pipe A] [ 206.076196] [drm:drm_mode_setcrtc] [CONNECTOR:41:HDMI-A-1] [ 206.082714] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 206.082723] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=391, cursor=0, sprite0=0, sprite1=0, SR: plane=903, cursor=0 level=0 cxsr=1 [ 206.083919] [drm:drm_mode_setcrtc] [CRTC:31:pipe B] [ 206.083927] [drm:drm_mode_setcrtc] [CONNECTOR:37:DP-1] [ 206.083946] [drm:intel_atomic_check] [CONNECTOR:37:DP-1] checking for sink bpp constrains [ 206.083949] [drm:intel_atomic_check] clamping display bpp (was 30) to default limit of 24 [ 206.083952] ------------[ cut here ]------------ [ 206.083957] WARNING: CPU: 2 PID: 1953 at drivers/gpu/drm/i915/intel_dp.c:146 intel_dp_max_link_bw.isra.8+0x28/0x50 [ 206.083958] invalid max DP link bw val 0, using 1.62Gbps [ 206.083959] Modules linked in: [ 206.083965] CPU: 2 PID: 1953 Comm: Xorg Not tainted 4.9.0-rc4+ #5 [ 206.083966] Hardware name: congatec conga-qeval20-qa3-e3845/conga-qeval20-qa3-e3845, BIOS 2016.09.01-00021-ga2921da-dirty 09/30/2016 [ 206.083968] ffffc90001de7a10 ffffffff8132b928 ffffc90001de7a60 0000000000000000 [ 206.083973] ffffc90001de7a50 ffffffff81059b66 0000009200000007 ffff88017a48f0e0 [ 206.083978] ffffc90001de7b50 0000000000000001 0000000000000004 ffff88017a48d000 [ 206.083982] Call Trace: [ 206.083988] [<ffffffff8132b928>] dump_stack+0x4d/0x65 [ 206.083992] [<ffffffff81059b66>] __warn+0xc6/0xe0 [ 206.083995] [<ffffffff81059bca>] warn_slowpath_fmt+0x4a/0x50 [ 206.083998] [<ffffffff814eb0a8>] intel_dp_max_link_bw.isra.8+0x28/0x50 [ 206.084001] [<ffffffff814ee2d8>] intel_dp_common_rates+0x28/0xc0 [ 206.084004] [<ffffffff814ef2a2>] intel_dp_compute_config+0x82/0x6e0 [ 206.084008] [<ffffffff814c71ef>] intel_atomic_check+0x2ff/0x10b0 [ 206.084012] [<ffffffff8143faeb>] drm_atomic_check_only+0x45b/0x580 [ 206.084015] [<ffffffff8143f3db>] ? drm_atomic_set_crtc_for_connector+0xbb/0xf0 [ 206.084018] [<ffffffff8143fc22>] drm_atomic_commit+0x12/0x50 [ 206.084021] [<ffffffff81422b1c>] drm_atomic_helper_set_config+0x7c/0xb0 [ 206.084024] [<ffffffff81433500>] drm_mode_set_config_internal+0x60/0x110 [ 206.084027] [<ffffffff81434bcd>] drm_mode_setcrtc+0x3bd/0x480 [ 206.084031] [<ffffffff8142c061>] drm_ioctl+0x1e1/0x470 [ 206.084034] [<ffffffff81434810>] ? drm_mode_getcrtc+0x140/0x140 [ 206.084039] [<ffffffff8119771d>] do_vfs_ioctl+0x8d/0x590 [ 206.084042] [<ffffffff81065b35>] ? recalc_sigpending+0x15/0x40 [ 206.084045] [<ffffffff81197c94>] SyS_ioctl+0x74/0x80 [ 206.084049] [<ffffffff818f5820>] entry_SYSCALL_64_fastpath+0x13/0x94 [ 206.084052] ---[ end trace 0c9444387b47fd40 ]--- [ 206.084056] [drm:intel_dp_compute_config] DP link computation with max lane count 0 max bw 162000 pixel clock 31500KHz [ 206.084059] [drm:intel_atomic_check] Encoder config failure [ 206.084063] [drm:intel_dump_pipe_config] [CRTC:31:pipe B][failed] config ffff880176af9000 for pipe B [ 206.084066] [drm:intel_dump_pipe_config] cpu_transcoder: B [ 206.084069] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 206.084073] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 206.084076] [drm:intel_dump_pipe_config] dp: 1, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 206.084079] [drm:intel_dump_pipe_config] dp: 1, lanes: 0, gmch_m2: 0, gmch_n2: 0, link_m2: 0, link_n2: 0, tu2: 0 [ 206.084082] [drm:intel_dump_pipe_config] audio: 0, infoframes: 0 [ 206.084084] [drm:intel_dump_pipe_config] requested mode: [ 206.084089] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 31500 640 656 720 840 480 481 484 500 0x0 0xa [ 206.084092] [drm:intel_dump_pipe_config] adjusted mode: [ 206.084096] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 31500 640 656 720 840 480 481 484 500 0x0 0xa [ 206.084100] [drm:intel_dump_pipe_config] crtc timings: 31500 640 656 720 840 480 481 484 500, type: 0x0 flags: 0xa [ 206.084103] [drm:intel_dump_pipe_config] port clock: 0 [ 206.084106] [drm:intel_dump_pipe_config] pipe src size: 640x480 [ 206.084108] [drm:intel_dump_pipe_config] num_scalers: 0, scaler_users: 0x0, scaler_id: 0 [ 206.084112] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 206.084115] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 206.084117] [drm:intel_dump_pipe_config] ips: 0 [ 206.084119] [drm:intel_dump_pipe_config] double wide: 0 [ 206.084123] [drm:intel_dump_pipe_config] dpll_hw_state: dpll: 0xf0006000, dpll_md: 0x0, fp0: 0x0, fp1: 0x0 [ 206.084125] [drm:intel_dump_pipe_config] planes on this crtc [ 206.084128] [drm:intel_dump_pipe_config] [PLANE:29:primary B] disabled, scaler_id = 0 [ 206.084131] [drm:intel_dump_pipe_config] [PLANE:30:cursor B] disabled, scaler_id = 0 [ 206.084134] [drm:intel_dump_pipe_config] [PLANE:32:sprite C] disabled, scaler_id = 0 [ 206.084137] [drm:intel_dump_pipe_config] [PLANE:33:sprite D] disabled, scaler_id = 0 [ 206.084254] [drm:drm_mode_addfb2] [FB:51] [ 206.084314] [drm:drm_mode_setcrtc] [CRTC:31:pipe B] [ 206.084325] [drm:drm_mode_setcrtc] [CONNECTOR:37:DP-1] [ 206.084342] [drm:intel_atomic_check] [CONNECTOR:37:DP-1] checking for sink bpp constrains [ 206.084349] [drm:intel_atomic_check] clamping display bpp (was 30) to default limit of 24 [ 206.084355] ------------[ cut here ]------------ [ 206.084364] WARNING: CPU: 2 PID: 1953 at drivers/gpu/drm/i915/intel_dp.c:146 intel_dp_max_link_bw.isra.8+0x28/0x50 [ 206.084370] invalid max DP link bw val 0, using 1.62Gbps [ 206.084379] Modules linked in: [ 206.084383] CPU: 2 PID: 1953 Comm: Xorg Tainted: G W 4.9.0-rc4+ #5 [ 206.084385] Hardware name: congatec conga-qeval20-qa3-e3845/conga-qeval20-qa3-e3845, BIOS 2016.09.01-00021-ga2921da-dirty 09/30/2016 [ 206.084386] ffffc90001de7a10 ffffffff8132b928 ffffc90001de7a60 0000000000000000 [ 206.084391] ffffc90001de7a50 ffffffff81059b66 0000009200000007 ffff88017a48f0e0 [ 206.084395] ffffc90001de7b50 0000000000000001 0000000000000004 ffff88017a48d000 [ 206.084399] Call Trace: [ 206.084403] [<ffffffff8132b928>] dump_stack+0x4d/0x65 [ 206.084406] [<ffffffff81059b66>] __warn+0xc6/0xe0 [ 206.084410] [<ffffffff81059bca>] warn_slowpath_fmt+0x4a/0x50 [ 206.084415] [<ffffffff814eb0a8>] intel_dp_max_link_bw.isra.8+0x28/0x50 [ 206.084417] [<ffffffff814ee2d8>] intel_dp_common_rates+0x28/0xc0 [ 206.084420] [<ffffffff814ef2a2>] intel_dp_compute_config+0x82/0x6e0 [ 206.084423] [<ffffffff814c71ef>] intel_atomic_check+0x2ff/0x10b0 [ 206.084427] [<ffffffff8143faeb>] drm_atomic_check_only+0x45b/0x580 [ 206.084430] [<ffffffff8143f3db>] ? drm_atomic_set_crtc_for_connector+0xbb/0xf0 [ 206.084433] [<ffffffff8143fc22>] drm_atomic_commit+0x12/0x50 [ 206.084436] [<ffffffff81422b1c>] drm_atomic_helper_set_config+0x7c/0xb0 [ 206.084439] [<ffffffff81433500>] drm_mode_set_config_internal+0x60/0x110 [ 206.084442] [<ffffffff81434bcd>] drm_mode_setcrtc+0x3bd/0x480 [ 206.084446] [<ffffffff8142c061>] drm_ioctl+0x1e1/0x470 [ 206.084452] [<ffffffff81434810>] ? drm_mode_getcrtc+0x140/0x140 [ 206.084455] [<ffffffff8119771d>] do_vfs_ioctl+0x8d/0x590 [ 206.084458] [<ffffffff81065b35>] ? recalc_sigpending+0x15/0x40 [ 206.084461] [<ffffffff81197c94>] SyS_ioctl+0x74/0x80 [ 206.084465] [<ffffffff818f5820>] entry_SYSCALL_64_fastpath+0x13/0x94 [ 206.084467] ---[ end trace 0c9444387b47fd41 ]--- [ 206.084470] [drm:intel_dp_compute_config] DP link computation with max lane count 0 max bw 162000 pixel clock 31500KHz [ 206.084473] [drm:intel_atomic_check] Encoder config failure [ 206.084477] [drm:intel_dump_pipe_config] [CRTC:31:pipe B][failed] config ffff880176af9000 for pipe B [ 206.084479] [drm:intel_dump_pipe_config] cpu_transcoder: B [ 206.084482] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 206.084489] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 206.084492] [drm:intel_dump_pipe_config] dp: 1, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 206.084496] [drm:intel_dump_pipe_config] dp: 1, lanes: 0, gmch_m2: 0, gmch_n2: 0, link_m2: 0, link_n2: 0, tu2: 0 [ 206.084498] [drm:intel_dump_pipe_config] audio: 0, infoframes: 0 [ 206.084501] [drm:intel_dump_pipe_config] requested mode: [ 206.084506] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 31500 640 656 720 840 480 481 484 500 0x0 0xa [ 206.084508] [drm:intel_dump_pipe_config] adjusted mode: [ 206.084513] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 31500 640 656 720 840 480 481 484 500 0x0 0xa [ 206.084517] [drm:intel_dump_pipe_config] crtc timings: 31500 640 656 720 840 480 481 484 500, type: 0x0 flags: 0xa [ 206.084520] [drm:intel_dump_pipe_config] port clock: 0 [ 206.084525] [drm:intel_dump_pipe_config] pipe src size: 640x480 [ 206.084528] [drm:intel_dump_pipe_config] num_scalers: 0, scaler_users: 0x0, scaler_id: 0 [ 206.084531] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 206.084534] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 206.084536] [drm:intel_dump_pipe_config] ips: 0 [ 206.084539] [drm:intel_dump_pipe_config] double wide: 0 [ 206.084542] [drm:intel_dump_pipe_config] dpll_hw_state: dpll: 0xf0006000, dpll_md: 0x0, fp0: 0x0, fp1: 0x0 [ 206.084545] [drm:intel_dump_pipe_config] planes on this crtc [ 206.084548] [drm:intel_dump_pipe_config] [PLANE:29:primary B] disabled, scaler_id = 0 [ 206.084551] [drm:intel_dump_pipe_config] [PLANE:30:cursor B] disabled, scaler_id = 0 [ 206.084566] [drm:intel_dump_pipe_config] [PLANE:32:sprite C] disabled, scaler_id = 0 [ 206.084574] [drm:intel_dump_pipe_config] [PLANE:33:sprite D] disabled, scaler_id = 0 [ 206.084911] [drm:drm_mode_setcrtc] [CRTC:26:pipe A] [ 206.084928] [drm:intel_atomic_check] New cdclk calculated to be atomic 200000, actual 200000 [ 206.084946] [drm:intel_set_memory_cxsr] memory self-refresh is disabled [ 206.098959] [drm:intel_disable_pipe] disabling pipe A [ 206.117069] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 206.117077] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=0, cursor=0, sprite0=0, sprite1=0, SR: plane=0, cursor=0 level=0 cxsr=0 [ 206.119114] [drm:intel_atomic_commit_tail] [ENCODER:35:CRT] [ 206.119120] [drm:intel_atomic_commit_tail] [ENCODER:36:DP B] [ 206.119125] [drm:intel_atomic_commit_tail] [ENCODER:40:HDMI B] [ 206.119128] [drm:intel_atomic_commit_tail] [ENCODER:43:DP C] [ 206.119132] [drm:intel_atomic_commit_tail] [ENCODER:45:HDMI C] [ 206.119137] [drm:verify_connector_state] [CONNECTOR:34:VGA-1] [ 206.119141] [drm:verify_connector_state] [CONNECTOR:37:DP-1] [ 206.119145] [drm:verify_connector_state] [CONNECTOR:41:HDMI-A-1] [ 206.119149] [drm:verify_connector_state] [CONNECTOR:44:DP-2] [ 206.119153] [drm:verify_connector_state] [CONNECTOR:46:HDMI-A-2] [ 206.119161] [drm:intel_power_well_disable] disabling dpio-common [ 206.121189] [drm:intel_power_well_disable] disabling dpio-tx-c-23 [ 206.123214] [drm:intel_power_well_disable] disabling dpio-tx-c-01 [ 206.125246] [drm:intel_power_well_disable] disabling dpio-tx-b-23 [ 206.127271] [drm:intel_power_well_disable] disabling dpio-tx-b-01 [ 206.129297] [drm:intel_power_well_disable] disabling display [ 206.131340] [drm:intel_atomic_commit_tail] [CRTC:26:pipe A] [ 206.131347] [drm:intel_power_well_disable] disabling always-on [ 206.132752] [drm:drm_mode_addfb2] [FB:50] [ 206.133767] [drm:drm_mode_setcrtc] [CRTC:26:pipe A] [ 206.133776] [drm:drm_mode_setcrtc] [CONNECTOR:41:HDMI-A-1] [ 206.133795] [drm:intel_atomic_check] [CONNECTOR:41:HDMI-A-1] checking for sink bpp constrains [ 206.133798] [drm:intel_atomic_check] clamping display bpp (was 30) to default limit of 24 [ 206.133803] [drm:intel_hdmi_compute_config] picking bpc to 8 for HDMI output [ 206.133806] [drm:intel_hdmi_compute_config] forcing pipe bpc to 24 for HDMI [ 206.133809] [drm:intel_atomic_check] hw max bpp: 30, pipe bpp: 24, dithering: 0 [ 206.133814] [drm:intel_dump_pipe_config] [CRTC:26:pipe A][modeset] config ffff880176afb000 for pipe A [ 206.133817] [drm:intel_dump_pipe_config] cpu_transcoder: A [ 206.133820] [drm:intel_dump_pipe_config] pipe bpp: 24, dithering: 0 [ 206.133823] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 206.133827] [drm:intel_dump_pipe_config] dp: 0, lanes: 4, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0 [ 206.133830] [drm:intel_dump_pipe_config] dp: 0, lanes: 4, gmch_m2: 0, gmch_n2: 0, link_m2: 0, link_n2: 0, tu2: 0 [ 206.133833] [drm:intel_dump_pipe_config] audio: 0, infoframes: 0 [ 206.133835] [drm:intel_dump_pipe_config] requested mode: [ 206.133840] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 154000 1920 1968 2000 2080 1200 1203 1209 1235 0x0 0x9 [ 206.133843] [drm:intel_dump_pipe_config] adjusted mode: [ 206.133847] [drm:drm_mode_debug_printmodeline] Modeline 0:"" 0 154000 1920 1968 2000 2080 1200 1203 1209 1235 0x0 0x9 [ 206.133852] [drm:intel_dump_pipe_config] crtc timings: 154000 1920 1968 2000 2080 1200 1203 1209 1235, type: 0x0 flags: 0x9 [ 206.133854] [drm:intel_dump_pipe_config] port clock: 154000 [ 206.133857] [drm:intel_dump_pipe_config] pipe src size: 1920x1200 [ 206.133860] [drm:intel_dump_pipe_config] num_scalers: 0, scaler_users: 0x0, scaler_id: 0 [ 206.133863] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000 [ 206.133866] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled [ 206.133869] [drm:intel_dump_pipe_config] ips: 0 [ 206.133871] [drm:intel_dump_pipe_config] double wide: 0 [ 206.133874] [drm:intel_dump_pipe_config] dpll_hw_state: dpll: 0xf0002000, dpll_md: 0x0, fp0: 0x0, fp1: 0x0 [ 206.133877] [drm:intel_dump_pipe_config] planes on this crtc [ 206.133880] [drm:intel_dump_pipe_config] [PLANE:23:primary A] disabled, scaler_id = 0 [ 206.133883] [drm:intel_dump_pipe_config] [PLANE:25:cursor A] disabled, scaler_id = 0 [ 206.133886] [drm:intel_dump_pipe_config] [PLANE:27:sprite A] disabled, scaler_id = 0 [ 206.133889] [drm:intel_dump_pipe_config] [PLANE:28:sprite B] disabled, scaler_id = 0 [ 206.133895] [drm:intel_atomic_check] New cdclk calculated to be atomic 266667, actual 266667 [ 206.136183] [drm:intel_power_well_enable] enabling always-on [ 206.136188] [drm:intel_power_well_enable] enabling display [ 206.137346] [drm:intel_crt_reset] crt adpa set to 0xf40000 [ 206.137351] [drm:i915_redisable_vga_power_on] Something enabled VGA plane, disabling it [ 206.137668] [drm:intel_power_well_enable] enabling dpio-tx-b-01 [ 206.139694] [drm:intel_power_well_enable] enabling dpio-tx-b-23 [ 206.141718] [drm:intel_power_well_enable] enabling dpio-tx-c-01 [ 206.143743] [drm:intel_power_well_enable] enabling dpio-tx-c-23 [ 206.145768] [drm:intel_power_well_enable] enabling dpio-common [ 206.149825] [drm:intel_atomic_commit_tail] [ENCODER:35:CRT] [ 206.149830] [drm:intel_atomic_commit_tail] [ENCODER:36:DP B] [ 206.149835] [drm:intel_atomic_commit_tail] [ENCODER:40:HDMI B] [ 206.149837] [drm:intel_atomic_commit_tail] [ENCODER:43:DP C] [ 206.149841] [drm:intel_atomic_commit_tail] [ENCODER:45:HDMI C] [ 206.149846] [drm:verify_connector_state] [CONNECTOR:34:VGA-1] [ 206.149850] [drm:verify_connector_state] [CONNECTOR:37:DP-1] [ 206.149855] [drm:verify_connector_state] [CONNECTOR:44:DP-2] [ 206.149859] [drm:verify_connector_state] [CONNECTOR:46:HDMI-A-2] [ 206.150134] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 206.150142] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=391, cursor=63, sprite0=0, sprite1=0, SR: plane=0, cursor=0 level=0 cxsr=0 [ 206.150144] [drm:intel_enable_pipe] enabling pipe A [ 206.166869] [drm:verify_connector_state] [CONNECTOR:41:HDMI-A-1] [ 206.166875] [drm:intel_atomic_commit_tail] [CRTC:26:pipe A] [ 206.166908] [drm:intel_crt_detect] [CONNECTOR:34:VGA-1] force=0 [ 206.166913] [drm:intel_crt_detect] trigger hotplug detect cycle: adpa=0xf40000 [ 206.172951] [drm:intel_crt_detect] valleyview hotplug adpa=0xf40000, result 0 [ 206.172954] [drm:intel_crt_detect] CRT not detected via hotplug [ 206.225349] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] timed out, falling back to bit banging on pin 2 [ 206.241301] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga [ 206.241305] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging [ 206.241309] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1 [ 206.257306] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga [ 206.257310] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0 [ 206.257313] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found] [ 206.257318] [drm:drm_helper_hpd_irq_event] [CONNECTOR:34:VGA-1] status updated from disconnected to disconnected [ 206.257321] [drm:intel_dp_detect] [CONNECTOR:37:DP-1] [ 206.259787] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.262246] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.264705] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.267161] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.269619] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.272075] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.274534] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.276990] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.279448] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.281905] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.284363] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.286819] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.289275] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.291733] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.294192] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.296651] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.299107] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.301564] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.304021] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.306478] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.308936] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.311394] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.313853] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.316311] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.318774] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.321231] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.323689] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.326146] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.328604] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.331063] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.333521] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.335978] [drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064 [ 206.335986] [drm:drm_dp_dpcd_access] Too many retries, giving up. First error: -110 [ 206.335990] [drm:drm_helper_hpd_irq_event] [CONNECTOR:37:DP-1] status updated from disconnected to disconnected [ 206.335993] [drm:intel_hdmi_detect] [CONNECTOR:41:HDMI-A-1] [ 206.348788] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0040 w(1) [ 206.348791] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK on first message, retry [ 206.348939] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0040 w(1) [ 206.348945] [drm:drm_helper_hpd_irq_event] [CONNECTOR:41:HDMI-A-1] status updated from connected to connected [ 206.348948] [drm:intel_dp_detect] [CONNECTOR:44:DP-2] [ 206.348953] [drm:drm_helper_hpd_irq_event] [CONNECTOR:44:DP-2] status updated from disconnected to disconnected [ 206.348956] [drm:intel_hdmi_detect] [CONNECTOR:46:HDMI-A-2] [ 206.400864] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out, falling back to bit banging on pin 4 [ 206.401420] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc [ 206.453650] [drm:gmbus_xfer] GMBUS [i915 gmbus dpc] timed out, falling back to bit banging on pin 4 [ 206.454202] [drm:drm_helper_hpd_irq_event] [CONNECTOR:46:HDMI-A-2] status updated from disconnected to disconnected [ 206.467290] [drm:vlv_pipe_set_fifo_size.isra.24] Pipe A FIFO split 511 / 511 / 511 [ 206.467298] [drm:vlv_update_wm] Setting FIFO watermarks - A: plane=391, cursor=0, sprite0=0, sprite1=0, SR: plane=903, cursor=0 level=0 cxsr=1 [ 206.467302] [drm:intel_set_memory_cxsr] memory self-refresh is enabled Is there a way to enable or force such a configuration with the latest Linux i915 driver? Any hints on this would be very welcome. Thanks, Stefan _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
