screen goes blank when loading gma500_gfx (atom D2500) (original) (raw)

Michael Tokarev mjt at tls.msk.ru
Sat Feb 15 10:28:14 PST 2014

10.02.2014 14:44, One Thousand Gnomes wrote:

fbcon is loaded so it isn't an issue.

I tried 3.10 kernel initially (the above messages are from it), next I tried 3.13 kernel too, and that one behaves exactly the same. As far as I remember, this system never worked with graphics well. Previous kernel (from which I updated) was 3.2 which had no gma500 module (local build). What are the steps to debug this further? Check you have X86SYSFB and SIMPLEFB disabled

Neither of these options exists in 3.10 config. In 3.13 I had X86_SYSFB set to y initially (SIMPLEFB doesn't exist there too), but setting it to n does not make any difference.

Boot with drm.debug=6

collect the logs

I used modprobe drm debug=6' (initially booting with gma500_gfx module disabled), followed with modprobe gma500_gfx'. After loading module the screen goes blank as before, and monitor says 'no signal detected'.

Here are the logs:

[599286.739923] Linux agpgart interface v0.103 [599286.765176] [drm] Initialized drm 1.1.0 20060810 [599303.673734] gma500 0000:00:02.0: setting latency timer to 64 [599303.673883] [drm:psb_intel_opregion_setup], Public ACPI methods supported [599303.673887] [drm:psb_intel_opregion_setup], ASLE supported [599303.673923] gma500 0000:00:02.0: irq 50 for MSI/MSI-X [599303.673950] [drm:psb_intel_init_bios], Using VBT from OpRegion: $VBT CEDARVIEW d [599303.673959] [drm:drm_mode_debug_printmodeline], Modeline 0:"1920x1080" 0 144000 1920 2016 2080 2176 1080 1088 1092 1100 0x8 0xa [599303.673969] [drm:parse_sdvo_device_mapping], No SDVO device info is found in VBT [599303.673975] [drm:parse_edp], EDP timing in vbt t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000 [599303.673980] [drm:parse_edp], VBT reports EDP: Lane_count 1, Lane_rate 6, Bpp 24 [599303.673984] [drm:parse_edp], VBT reports EDP: VSwing 0, Preemph 0 [599303.688094] acpi device:29: registered as cooling_device2 [599303.688446] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) [599303.688557] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input11 [599303.689160] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [599303.689188] [drm] No driver support for vblank timestamp query. [599303.740423] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter intel drm LVDSDDC_C [599303.741222] [drm:cdv_intel_dp_i2c_init], i2c_init DPDDC-B [599303.741732] [drm:cdv_intel_dp_aux_ch], dp_aux_ch timeout status 0x51440064 [599303.741736] [drm:cdv_intel_dp_i2c_aux_ch], aux_ch failed -110 [599303.742242] [drm:cdv_intel_dp_aux_ch], dp_aux_ch timeout status 0x51440064 [599303.742246] [drm:cdv_intel_dp_i2c_aux_ch], aux_ch failed -110 [599303.742997] [drm:cdv_intel_dp_i2c_init], i2c_init DPDDC-C [599303.743305] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.743510] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.783922] [drm:cdv_intel_single_pipe_active], pipe enabled 0 [599303.803958] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1 [599303.803996] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1 [599303.844370] [drm:cdv_intel_single_pipe_active], pipe enabled 0 [599303.864408] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:7:VGA-1] [599303.877172] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:7:VGA-1] disconnected [599303.877184] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:LVDS-1] [599303.881764] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter intel drm LVDSBLC_B [599303.881778] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:9:LVDS-1] probed modes : [599303.881783] [drm:drm_mode_debug_printmodeline], Modeline 22:"1920x1080" 60 144000 1920 2016 2080 2176 1080 1088 1092 1100 0x8 0xa [599303.881791] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:DVI-D-1] [599303.886292] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter intel drm HDMIB [599303.886298] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:DVI-D-1] disconnected [599303.886304] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:14:DP-1] [599303.886811] [drm:cdv_intel_dp_aux_ch], dp_aux_ch timeout status 0x51440064 [599303.886815] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:14:DP-1] disconnected [599303.886820] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR🔞DVI-D-2] [599303.891350] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter intel drm HDMIC [599303.891357] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR🔞DVI-D-2] disconnected [599303.891362] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:20:DP-2] [599303.891569] [drm:cdv_dp_detect], DPCD: Rev=11 LN_Rate=a LN_CNT=82 LN_DOWNSP=41 [599303.891876] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.892082] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.892085] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.892391] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.892595] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.892598] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.892904] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.893109] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.893112] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.893417] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.893622] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.893625] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.893944] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.894151] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.894154] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.894460] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.894665] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.894669] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.894975] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.895180] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.895183] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.895489] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.895694] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.895697] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.896002] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.896207] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.896210] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.896515] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.896720] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599303.896723] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599303.896741] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:20:DP-2] probed modes : [599303.896745] [drm:drm_mode_debug_printmodeline], Modeline 27:"1024x768" 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa [599303.896752] [drm:drm_mode_debug_printmodeline], Modeline 25:"800x600" 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5 [599303.896759] [drm:drm_mode_debug_printmodeline], Modeline 24:"800x600" 56 36000 800 824 896 1024 600 601 603 625 0x40 0x5 [599303.896766] [drm:drm_mode_debug_printmodeline], Modeline 26:"848x480" 60 33750 848 864 976 1088 480 486 494 517 0x40 0x5 [599303.896773] [drm:drm_mode_debug_printmodeline], Modeline 23:"640x480" 60 25175 640 656 752 800 480 489 492 525 0x40 0xa [599303.896780] [drm:drm_setup_crtcs], [599303.896785] [drm:drm_enable_connectors], connector 7 enabled? no [599303.896789] [drm:drm_enable_connectors], connector 9 enabled? yes [599303.896792] [drm:drm_enable_connectors], connector 12 enabled? no [599303.896796] [drm:drm_enable_connectors], connector 14 enabled? no [599303.896800] [drm:drm_enable_connectors], connector 18 enabled? no [599303.896803] [drm:drm_enable_connectors], connector 20 enabled? yes [599303.896807] [drm:drm_target_preferred], looking for cmdline mode on connector 9 [599303.896811] [drm:drm_target_preferred], looking for preferred mode on connector 9 [599303.896815] [drm:drm_target_preferred], found mode 1920x1080 [599303.896818] [drm:drm_target_preferred], looking for cmdline mode on connector 20 [599303.896821] [drm:drm_target_preferred], looking for preferred mode on connector 20 [599303.896825] [drm:drm_target_preferred], found mode 1024x768 [599303.896828] [drm:drm_setup_crtcs], picking CRTCs for 4096x4096 config [599303.896836] [drm:drm_setup_crtcs], desired mode 1920x1080 set on crtc 4 [599303.896841] [drm:drm_setup_crtcs], desired mode 1024x768 set on crtc 3 [599303.896862] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0 [599546.148642] [drm:drm_helper_hpd_irq_event], [CONNECTOR:7:VGA-1] status updated from disconnected to connected [599546.153261] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter intel drm HDMIB [599546.153270] [drm:drm_helper_hpd_irq_event], [CONNECTOR:12:DVI-D-1] status updated from disconnected to disconnected [599546.153779] [drm:cdv_intel_dp_aux_ch], dp_aux_ch timeout status 0x51440064 [599546.153783] [drm:drm_helper_hpd_irq_event], [CONNECTOR:14:DP-1] status updated from disconnected to disconnected [599546.158258] [drm:drm_do_probe_ddc_edid], drm: skipping non-existent adapter intel drm HDMIC [599546.158264] [drm:drm_helper_hpd_irq_event], [CONNECTOR🔞DVI-D-2] status updated from disconnected to disconnected [599546.158471] [drm:cdv_dp_detect], DPCD: Rev=11 LN_Rate=a LN_CNT=82 LN_DOWNSP=41 [599546.158780] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.158987] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.158991] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599546.159297] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.159502] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.159505] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599546.159810] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.160015] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.160018] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599546.160324] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.160528] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack [599546.160531] [drm:i2c_algo_dp_aux_xfer], dp_aux_xfer return -121 [599546.160843] [drm:cdv_intel_dp_i2c_aux_ch], aux_i2c nack

This is 3.10.29, monitor is connected to VGA connector.

Thank you!

/mjt

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