Re: [Angstrom-devel] Angstrom v2015.06 on BeagleBone Black: Black LCD7 display
On 31.12.2015 06:13, Clayton Louden wrote: > Hi again, > > On 31.12.2015 02:27, Clayton Louden wrote: >> But the display stays black. I've fiddled around with a couple of diffent >> kernel options since I saw those on the ancient angstrom 2013 that I still >> had floating around (which does show me the login screen on the lcd) like >> >> CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y >> CONFIG_LCD_CLASS_DEVICE=y >> CONFIG_BACKLIGHT_CLASS_DEVICE=y > > I just ran a diff on the default kernel configs from the v2013 and the > v2015-6: Tons of stuff changed. There's a couple of things that could be > interesting like vt, framebuffer and touchscreen options, but since I'm in > the deep end here, I don't really know what to touch. > The debian image also has fbtft_device but since angstrom v2013 didn't have > it, I guess I don't need it? Works fine if I add PREFERRED_VERSION_linux-beagleboard = "3.8%" to my conf/local.conf and run it with the default 3.8 kernel. So there seems to be something very different between the 4.1 and 3.8 default kernel configs. Pointers? The drm stuff looks different. Here's 4.1: [3.014757] [drm] Initialized drm 1.1.0 20060810 [3.014902] [drm:tilcdc_drm_init] init [3.020216] [drm:tda998x_init] [3.370570] [drm:omap_drm_init] init [3.402581] [drm:drm_platform_init] [3.402600] [drm:drm_get_platform_dev] [3.402763] [drm:drm_minor_register] [3.403270] [drm:drm_minor_register] new minor registered 64 [3.403284] [drm:drm_minor_register] [3.403293] [drm:drm_minor_register] [3.403601] [drm:drm_minor_register] new minor registered 0 [3.403719] [drm:tilcdc_load] Maximum Bandwidth Value 78643200 [3.403732] [drm:tilcdc_load] Maximum Horizontal Pixel Width Value 2048pixels [3.403742] [drm:tilcdc_load] Maximum Pixel Clock Value 126000KHz [3.403886] [drm:modeset_init] loading module: slave [3.521794] [drm:drm_sysfs_connector_add] adding "HDMI-A-1" to sysfs [3.521808] [drm:drm_sysfs_hotplug_event] generating hotplug event [3.521892] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [3.521901] [drm] No driver support for vblank timestamp query. [3.522014] [drm:drm_irq_install] irq=173 [3.522107] [drm:tilcdc_load] slave: preferred_bpp: 16 [3.522138] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:20:HDMI-A-1] [3.522366] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:20:HDMI-A-1] status updated from 3 to 2 [3.522381] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:20:HDMI-A-1] disconnected [3.522408] [drm:drm_setup_crtcs] [3.522420] [drm:drm_enable_connectors] connector 20 enabled? no [3.522433] [drm:drm_setup_crtcs] picking CRTCs for 2048x2048 config [3.522446] [drm] Cannot find any crtc or sizes - going 1024x768 [3.522458] [drm:drm_fbdev_cma_create] surface width(1024), height(768) and bpp(16) [3.529951] [drm:drm_crtc_helper_set_config] [3.529958] [drm:drm_crtc_helper_set_config] [CRTC:18] [NOFB] [3.597812] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0 [ 13.618078] [drm:drm_sysfs_hotplug_event] generating hotplug event [ 13.618207] [drm:drm_fb_helper_hotplug_event] [ 13.618224] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:20:HDMI-A-1] [ 13.618418] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:20:HDMI-A-1] disconnected [ 13.618442] [drm:drm_setup_crtcs] [ 13.618455] [drm:drm_enable_connectors] connector 20 enabled? no [ 13.618469] [drm:drm_setup_crtcs] picking CRTCs for 2048x2048 config [ 13.618490] [drm:drm_crtc_helper_set_config] [ 13.618499] [drm:drm_crtc_helper_set_config] [CRTC:18] [NOFB] Cheers! ___ Angstrom-distro-devel mailing list Angstrom-distro-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel
Re: [Angstrom-devel] Angstrom v2015.06 on BeagleBone Black: Black LCD7 display
Hi again, On 31.12.2015 02:27, Clayton Louden wrote: > But the display stays black. I've fiddled around with a couple of diffent > kernel options since I saw those on the ancient angstrom 2013 that I still > had floating around (which does show me the login screen on the lcd) like > > CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y > CONFIG_LCD_CLASS_DEVICE=y > CONFIG_BACKLIGHT_CLASS_DEVICE=y I just ran a diff on the default kernel configs from the v2013 and the v2015-6: Tons of stuff changed. There's a couple of things that could be interesting like vt, framebuffer and touchscreen options, but since I'm in the deep end here, I don't really know what to touch. The debian image also has fbtft_device but since angstrom v2013 didn't have it, I guess I don't need it? Cheers! ___ Angstrom-distro-devel mailing list Angstrom-distro-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel
[Angstrom-devel] Angstrom v2015.06 on BeagleBone Black: Black LCD7 display
Hi everyone, I've compiled angstrom-v2015.06 for the beaglebone. Unfortunately, no matter what I do, I cannot get the LCD7 display (one of these: http://elinux.org/CircuitCo:BeagleBone_LCD7) to work. I'm using bootdelay=0 dtb=am335x-boneblack-overlay.dtb as a uEnv.txt file and the cape seems to be loaded correcly root@beaglebone:~# cat /sys/devices/platform/bone_capemgr/slots 0: P---L- 0 4D 7.0 LCD CAPE- 4DCAPE-70T ,00A3,4D SYSTEMS ,BB-BONE-LCD7-01 1: PF -1 2: PF -1 3: PF -1 and root@beaglebone:~# dmesg | grep capemgr [4.770384] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,00C0,3614BBBK6104' [4.777668] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4 [4.821749] bone_capemgr bone_capemgr: slot #0: '4D 7.0 LCD CAPE- 4DCAPE-70T ,00A3,4D SYSTEMS ,BB-BONE-LCD7-01' [4.887718] bone_capemgr bone_capemgr: slot #1: No cape found [4.947716] bone_capemgr bone_capemgr: slot #2: No cape found [5.007716] bone_capemgr bone_capemgr: slot #3: No cape found [5.013789] bone_capemgr bone_capemgr: initialized OK. [6.270174] bone_capemgr bone_capemgr: slot #0: dtbo 'BB-BONE-LCD7-01-00A3.dtbo' loaded; overlay id #0 But the display stays black. I've fiddled around with a couple of diffent kernel options since I saw those on the ancient angstrom 2013 that I still had floating around (which does show me the login screen on the lcd) like CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y CONFIG_LCD_CLASS_DEVICE=y CONFIG_BACKLIGHT_CLASS_DEVICE=y But they don't seem to do anything. The display hardware works fine, since an off the stock debian image and the angstrom I compiled (without changing anything) back in 2013 show me a login screen on the lcd. I've also swapped out the beaglebone black since I have a second one available, so it's not the BBB hardware either. I'm feeling like I'm missing something obvious. Is there something I need to tell the uBoot to send output to the lcd? Any help or pointers are greatly appreciated! Regars, C. ___ Angstrom-distro-devel mailing list Angstrom-distro-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel
