On 04/15/17 10:44, Andreas Kemnade wrote: > Hi Jyri, > > I am often seeing only some moving horizontal white strips (maybe 1-2 > pixels thick) when I boot my gta04 (omap 3 dm3730 + panel_tpo_td028ttec1 > + encoder_opa362). > > After a git bisect session, the verdict is: this patch is guilthy: > It is weird how committing the same configuration in different order has this effect. I have a feeling that this change has some how triggered another bug that has been hidden until now. Sync lost error (the bit 14 of DISPC_IRQSTS) is usually indication of some misconfiguration of the HW. Could you provide us with the register dumps of the error situation, by copying them from /sys/kernel/debug/omapdss/* (or where ever you have the debugfs mounted). I could also be helpful to know what display timings the driver thinks it has applied. Best regards, Jyri > commit 897145d0c7010b4e07fa9bc674b1dfb9a2c6fff9 > Author: Jyri Sarha <jsarha@xxxxxx> > > drm/omapdrm: Move commit_modeset_enables() before commit_planes() > > > dmesg output: > [ 58.580932] devm_usb_get_phy_by_node(ee69fc10 48070000.i2c:twl@48:bci, ef7e63a4 twl4030-usb, ee7f1320) > [ 58.609344] twl4030-usb : hsusb2_phy > [ 58.613372] twl4030-usb : twl4030-usb > [ 58.617462] phy = ed083210 > [ 58.630493] omapdss_dss 48050000.dss: 48050000.dss supply vdda_video not found, using dummy regulator > [ 58.648345] OMAP DSS rev 2.0 > [ 58.652893] omapdss_dss 48050000.dss: bound 48050400.dispc (ops dispc_component_ops [omapdss]) > [ 58.663543] omapdss_dss 48050000.dss: bound 48050c00.encoder (ops venc_component_ops [omapdss]) > [ 58.674804] devm_usb_get_phy_by_node(ee69fc10 48070000.i2c:twl@48:bci, ef7e63a4 twl4030-usb, ee7f1320) > [ 58.674835] twl4030-usb : hsusb2_phy > [ 58.674835] twl4030-usb : twl4030-usb > [ 58.674835] phy = ed083210 > [ 58.698516] devm_usb_get_phy_by_node(ee69fc10 48070000.i2c:twl@48:bci, ef7e63a4 twl4030-usb, ee7f1320) > [ 58.717620] twl4030-usb : hsusb2_phy > [ 58.721527] twl4030-usb : twl4030-usb > [ 58.725463] phy = ed083210 > [ 58.837219] not all displays probed (0 of 2) > [ 58.878845] connector-analog-tv connector: failed to find video source > [ 58.920532] devm_usb_get_phy_by_node(ee69fc10 48070000.i2c:twl@48:bci, ef7e63a4 twl4030-usb, ee7f1520) > [ 58.946228] twl4030-usb : hsusb2_phy > [ 58.950073] twl4030-usb : twl4030-usb > [ 58.954010] phy = ed083210 > [ 58.988098] not all displays probed (1 of 2) > [ 58.994537] devm_usb_get_phy_by_node(ee69fc10 48070000.i2c:twl@48:bci, ef7e63a4 twl4030-usb, ee7f1520) > [ 59.025512] twl4030-usb : hsusb2_phy > [ 59.029846] twl4030-usb : twl4030-usb > [ 59.033752] phy = ed083210 > [ 59.082489] omapdrm omapdrm.0: DMM not available, disable DMM support > [ 59.092346] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). > [ 59.100158] [drm] No driver support for vblank timestamp query. > [ 59.237670] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 59.238525] Console: switching to colour frame buffer device 60x40 > [ 59.241729] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004020 > [ 59.241760] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241790] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241821] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241851] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241882] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241912] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241943] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.241973] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 59.350646] random: crng init done > [ 61.143005] omapdrm omapdrm.0: fb0: omapdrm frame buffer device > [ 64.139465] [drm] Initialized omapdrm 1.0.0 20110917 for omapdrm.0 on minor 0 > [ 64.235809] omap_crtc_error_irq: 276178 callbacks suppressed > [ 64.251525] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004000 > [ 64.268096] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.284729] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.301544] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.318603] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.335723] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.352905] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.370086] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.387298] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > [ 64.404479] [drm:omap_crtc_error_irq] *ERROR* lcd: errors: 00004022 > > > related modules loaded: > panel_tpo_td028ttec1 encoder_opa362 connector_analog_tv omapdrm > drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt > fb_sys_fops cfbcopyarea drm omapdss > > Note: this seems also to depend on initialisation timings. I have > used a shell script as init to load the modules piece by piece. > > Regards, > Andreas >
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