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am335x自制板 显示屏显示“”please wait“”

Other Parts Discussed in Thread: TPS65910

大家好,我使用ti-sdk移植u-boot及linux到自制板上,开机后u-boot能启动,在串口能操作显示sd卡内的数据,但显示屏显示的是黑色背景加一行白字“”please wait“”,无其他内容。

请问这是怎么一回事,该如何解决.

  • 图片显示不出来,请点击右下角的“使用高级编辑器编辑文本”插入图片。
  • 我按照网上说的输入一些命令,屏幕均不能显示,具体命令如下

    root@am335x-evm:~# /etc/init.d/matrix-gui-2.0 stop
    Stopping Matrix GUI applicationstart-stop-daemon: warning: killing process 808: No such process
    .
    root@am335x-evm:~# /etc/init.d/weston stop
    Stopping Weston
    root@am335x-evm:~# /etc/init.d/weston start
    Starting Weston
    root@am335x-evm:~# /etc/init.d/matrix-gui-2.0 start
    /home/root
    Removing stale PID file /var/run/matrix-gui-2.0.pid.
    Starting Matrix GUI application.
    root@am335x-evm:~#

    root@am335x-evm:~# kmscube -a
    ### Enabling all displays
    ### Display [0]: CRTC = 29, Connector = 31, format = 0x34325258
    Mode chosen [800x480] : Clock => 33200, Vertical refresh => 60, Type => 72
    Horizontal => 800, 840, 968, 1056, 0
    Vertical => 480, 491, 493, 525, 0
    ### Primary display => ConnectorId = 31, Resolution = 800x480
    PVR:(Error): OpenServices: PVRDRMOpenRender failed [0, ]
    PVR:(Error): PVRSRVConnect: Unable to open connection. [0, ]
    PVR:(Error): Couldn't connect to services [0, ]
    PVR:(Error): PVRDRIEGLGlobalDataInit: PVR Services initialisation failed [0, ]
    PVR:(Error): PVRDRICreateScreenImpl: Couldn't create EGL global data [0, ]
    MESA-LOADER: failed to open kms_swrast (search paths /usr/lib/dri)
    failed to load driver: kms_swrast
    MESA-LOADER: failed to open swrast (search paths /usr/lib/dri)
    failed to load swrast driver
    Segmentation fault (core dumped)


    root@am335x-evm:~# /etc/init.d/weston start modetest
    Starting Weston
    root@am335x-evm:~# weston --tty=1 --connector=26
    Date: 2020-04-19 UTC
    [02:20:38.792] weston 5.0.0

    wayland.freedesktop.org

    Bug reports to:
    gitlab.freedesktop.org/.../

    Build: unknown (not built from git or tarball)
    [02:20:38.793] Command line: weston --tty=1 --connector=26
    [02:20:38.793] OS: Linux, 4.19.94-gbe5389fd85, #1 PREEMPT Sun Apr 19 03:43:09 UTC 2020, armv7l
    [02:20:38.794] Using config file '/etc//weston.ini'
    [02:20:38.794] Output repaint window is 7 ms maximum.
    [02:20:38.795] Loading module '/usr/lib/libweston-5/wayland-backend.so'
    [02:20:38.795] Failed to load module: /usr/lib/libweston-5/wayland-backend.so: cannot open shared object file: No such file or directory
    [02:20:38.795] fatal: 

  • 请问您的代码在EVM板上也有这个问题吗? SDK是最新的版本么?
  • 这个并没有在EVM板上进行尝试,SDK为ti-processor-sdk-linux-am335x-evm-06.03.00.106。

  • 能否发一下kernel启动的log?
    另外,看一下是否按照下面的网站配置的?
    software-dl.ti.com/.../AM3_Beagle_Bone_Black_Configuration.html
  • 里面似乎是说非32倍数的配置,我的LCD是32的倍数。log如下:

    Starting kernel ...

    [ 0.000000] Booting Linux on physical CPU 0x0
    [ 0.000000] Linux version 4.19.94-gbe5389fd85 (oe-user@oe-host) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #1 PREEMPT Sun Apr 19 03:43:09 UTC 2020
    [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
    [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
    [ 0.000000] OF: fdt: Machine model: TI AM335x EVM-SK
    [ 0.000000] Memory policy: Data cache writeback
    [ 0.000000] efi: Getting EFI parameters from FDT:
    [ 0.000000] efi: UEFI not found.
    [ 0.000000] cma: Reserved 48 MiB at 0x9d000000
    [ 0.000000] CPU: All CPU(s) started in SVC mode.
    [ 0.000000] AM335X ES2.1 (sgx neon)
    [ 0.000000] random: get_random_bytes called from start_kernel+0xa4/0x434 with crng_init=0
    [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 129920
    [ 0.000000] Kernel command line: console=ttyO0,115200n8 root=PARTUUID=b511c40f-02 rw rootfstype=ext4 rootwait
    [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
    [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
    [ 0.000000] Memory: 455924K/524288K available (9216K kernel code, 307K rwdata, 2720K rodata, 1024K init, 252K bss, 19212K reserved, 49152K cma-reserved, 0K highmem)
    [ 0.000000] Virtual kernel memory layout:
    [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
    [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
    [ 0.000000] vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
    [ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
    [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
    [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
    [ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (10208 kB)
    [ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (1024 kB)
    [ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 308 kB)
    [ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 253 kB)
    [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
    [ 0.000000] rcu: Preemptible hierarchical RCU implementation.
    [ 0.000000] Tasks RCU enabled.
    [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
    [ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 interrupts
    [ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
    [ 0.000021] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
    [ 0.000049] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
    [ 0.000064] OMAP clocksource: timer1 at 24000000 Hz
    [ 0.000327] timer_probe: no matching timers found
    [ 0.000560] Console: colour dummy device 80x30
    [ 0.000595] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
    [ 0.000605] This ensures that you still see kernel messages. Please
    [ 0.000613] update your kernel commandline.
    [ 0.000677] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032)
    [ 0.118713] pid_max: default: 32768 minimum: 301
    [ 0.118985] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
    [ 0.119006] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
    [ 0.120053] CPU: Testing write buffer coherency: ok
    [ 0.120132] CPU0: Spectre v2: using BPIALL workaround
    [ 0.121244] Setting up static identity map for 0x80100000 - 0x80100060
    [ 0.121444] rcu: Hierarchical SRCU implementation.
    [ 0.121913] EFI services will not be available.
    [ 0.123850] devtmpfs: initialized
    [ 0.136955] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
    [ 0.137462] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
    [ 0.137493] futex hash table entries: 256 (order: -1, 3072 bytes)
    [ 0.142132] pinctrl core: initialized pinctrl subsystem
    [ 0.143082] DMI not present or invalid.
    [ 0.143626] NET: Registered protocol family 16
    [ 0.146799] DMA: preallocated 256 KiB pool for atomic coherent allocations
    [ 0.177315] l4_wkup_cm:clk:0010:0: failed to disable
    [ 0.232443] cpuidle: using governor ladder
    [ 0.232494] cpuidle: using governor menu
    [ 0.239549] OMAP GPIO hardware version 0.1
    [ 0.252650] No ATAGs?
    [ 0.252665] hw-breakpoint: debug architecture 0x4 unsupported.
    [ 0.272720] edma 49000000.edma: TI EDMA DMA engine driver
    [ 0.277987] SCSI subsystem initialized
    [ 0.278623] media: Linux media interface: v0.10
    [ 0.278959] videodev: Linux video capture interface: v2.00
    [ 0.279118] pps_core: LinuxPPS API ver. 1 registered
    [ 0.279131] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
    [ 0.279165] PTP clock support registered
    [ 0.279213] EDAC MC: Ver: 3.0.0
    [ 0.280576] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
    [ 0.281359] Advanced Linux Sound Architecture Driver Initialized.
    [ 0.282895] clocksource: Switched to clocksource timer1
    [ 0.294686] NET: Registered protocol family 2
    [ 0.295752] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
    [ 0.295797] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
    [ 0.295863] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
    [ 0.295926] TCP: Hash tables configured (established 4096 bind 4096)
    [ 0.296060] UDP hash table entries: 256 (order: 0, 4096 bytes)
    [ 0.296090] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
    [ 0.296298] NET: Registered protocol family 1
    [ 0.297039] RPC: Registered named UNIX socket transport module.
    [ 0.297058] RPC: Registered udp transport module.
    [ 0.297068] RPC: Registered tcp transport module.
    [ 0.297077] RPC: Registered tcp NFSv4.1 backchannel transport module.
    [ 0.298276] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
    [ 0.300018] Initialise system trusted keyrings
    [ 0.300415] workingset: timestamp_bits=14 max_order=17 bucket_order=3
    [ 0.307363] squashfs: version 4.0 (2009/01/31) Phillip Lougher
    [ 0.308352] NFS: Registering the id_resolver key type
    [ 0.308406] Key type id_resolver registered
    [ 0.308418] Key type id_legacy registered
    [ 0.308478] ntfs: driver 2.1.32 [Flags: R/O].
    [ 0.311528] Key type asymmetric registered
    [ 0.311552] Asymmetric key parser 'x509' registered
    [ 0.311645] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
    [ 0.311662] io scheduler noop registered
    [ 0.311673] io scheduler deadline registered
    [ 0.311999] io scheduler cfq registered (default)
    [ 0.312015] io scheduler mq-deadline registered
    [ 0.312026] io scheduler kyber registered
    [ 0.314832] pinctrl-single 44e10800.pinmux: 142 pins, size 568
    [ 0.319599] pwm-backlight backlight: backlight supply power not found, using dummy regulator
    [ 0.319735] pwm-backlight backlight: Linked as a consumer to regulator.0
    [ 0.389537] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
    [ 0.394917] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
    [ 1.028441] console [ttyS0] enabled
    [ 1.034687] omap_rng 48310000.rng: Random Number Generator ver. 20
    [ 1.043092] random: fast init done
    [ 1.046810] random: crng init done
    [ 1.051385] OF: graph: no port node found in /ocp/lcdc@4830e000
    [ 1.057741] OF: graph: no port node found in /ocp/lcdc@4830e000
    [ 1.064354] OF: graph: no port node found in /ocp/lcdc@4830e000
    [ 1.070319] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
    [ 1.077019] [drm] No driver support for vblank timestamp query.
    [ 1.090074] Console: switching to colour frame buffer device 100x30
    [ 1.100523] tilcdc 4830e000.lcdc: fb0: DRM emulated frame buffer device
    [ 1.107917] [drm] Initialized tilcdc 1.0.0 20121205 for 4830e000.lcdc on minor 0
    [ 1.131204] brd: module loaded
    [ 1.143709] loop: module loaded
    [ 1.150561] libphy: Fixed MDIO Bus: probed
    [ 1.222998] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
    [ 1.230709] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
    [ 1.238291] libphy: 4a101000.mdio: probed
    [ 1.242348] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver Micrel KSZ9031 Gigabit PHY
    [ 1.253488] cpsw 4a100000.ethernet: No slave[1] phy_id, phy-handle, or fixed-link property
    [ 1.261811] cpsw 4a100000.ethernet: Detected MACID = 0c:b2:b7:a1:ed:65
    [ 1.268675] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
    [ 1.275154] cpsw 4a100000.ethernet: ALE Table size 1024
    [ 1.280451] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies)
    [ 1.289580] i2c /dev entries driver
    [ 1.296373] sdhci: Secure Digital Host Controller Interface driver
    [ 1.302599] sdhci: Copyright(c) Pierre Ossman
    [ 1.308002] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
    [ 1.316806] omap_hsmmc 48060000.mmc: Got CD GPIO
    [ 1.323553] sdhci-pltfm: SDHCI platform and OF driver helper
    [ 1.331347] ledtrig-cpu: registered to indicate activity on CPUs
    [ 1.343300] NET: Registered protocol family 10
    [ 1.349397] Segment Routing with IPv6
    [ 1.353367] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
    [ 1.360250] NET: Registered protocol family 17
    [ 1.365225] Key type dns_resolver registered
    [ 1.369819] omap_voltage_late_init: Voltage driver support not added
    [ 1.377458] Loading compiled-in X.509 certificates
    [ 1.423174] tps65910 0-002d: No interrupt support, no core IRQ
    [ 1.431469] vrtc: supplied by vbat
    [ 1.438817] vio: supplied by vbat
    [ 1.443788] vdd1: supplied by vbat
    [ 1.449157] vdd2: supplied by vbat
    [ 1.456159] vdig1: supplied by vbat
    [ 1.461158] vdig2: supplied by vbat
    [ 1.466181] vpll: supplied by vbat
    [ 1.471091] vdac: supplied by vbat
    [ 1.476039] vaux1: supplied by vbat
    [ 1.481029] vaux2: supplied by vbat
    [ 1.486041] vaux33: supplied by vbat
    [ 1.491128] vmmc: supplied by vbat
    [ 1.495991] vbb: supplied by vbat
    [ 1.501341] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
    [ 1.507455] cpu cpu0: Linked as a consumer to regulator.7
    [ 1.513022] cpu cpu0: Dropping the link to regulator.7
    [ 1.518434] cpu cpu0: Linked as a consumer to regulator.7
    [ 1.525824] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)
    [ 1.534745] omap_hsmmc 48060000.mmc: Got CD GPIO
    [ 1.540093] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.17
    [ 1.576272] omap_hsmmc 481d8000.mmc: Linked as a consumer to regulator.4
    [ 1.615840] mmc0: host does not support reading read-only switch, assuming write-enable
    [ 1.625950] mmc0: new high speed SDXC card at address 0001
    [ 1.633701] mmcblk0: mmc0:0001 SD16G 58.4 GiB
    [ 1.641365] mmcblk0: p1 p2
    [ 1.701906] input: gpio_buttons@0 as /devices/platform/gpio_buttons@0/input/input0
    [ 1.711034] hctosys: unable to open rtc device (rtc0)
    [ 1.717218] ALSA device list:
    [ 1.720307] No soundcards found.
    [ 2.990480] EXT4-fs (mmcblk0p2): recovery complete
    [ 3.000327] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
    [ 3.009189] VFS: Mounted root (ext4 filesystem) on device 179:2.
    [ 3.024580] devtmpfs: mounted
    [ 3.029593] Freeing unused kernel memory: 1024K
    [ 3.034931] Run /sbin/init as init process
    [ 3.442443] systemd[1]: System time before build time, advancing clock.
    [ 3.499266] systemd[1]: systemd 239 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN -PCRE2 default-hierarchy=hybrid)
    [ 3.521710] systemd[1]: Detected architecture arm.

  • ZB_LAJI 说:

    里面似乎是说非32倍数的配置,我的LCD是32的倍数。log如下:



    AM335x LCD controller只支持24bit data,能否详细描述一下您板子LCD那块的硬件和配置信息?执行一下lsmod命令,并把输出信息贴出来看一下。

  • 配置为修改evmsk中的参数,且只使用0-15作为RGB输出。

    panel {
    compatible = "ti,tilcdc,panel";
    pinctrl-names = "default", "sleep";
    pinctrl-0 = <&lcd_pins_default>;
    pinctrl-1 = <&lcd_pins_sleep>;
    status = "okay";
    panel-info {
    ac-bias = <255>;
    ac-bias-intrpt = <0>;
    dma-burst-sz = <16>;
    bpp = <32>;
    fdd = <0x80>;
    sync-edge = <0>;
    sync-ctrl = <1>;
    raster-order = <0>;
    fifo-th = <0>;
    };
    display-timings {
    800x480 {
    hactive = <800>;
    vactive = <480>;
    hback-porch = <88>;
    hfront-porch = <40>;
    hsync-len = <128>;
    vback-porch = <32>;
    vfront-porch = <11>;
    vsync-len = <2>;
    clock-frequency = <33200000>;
    hsync-active = <0>;
    vsync-active = <0>;
    };
    };

    使用lsmod命令结果如下

    root@am335x-evm:~# lsmod
    Module Size Used by
    usb_f_acm 16384 1
    u_serial 20480 3 usb_f_acm
    usb_f_ecm 16384 1
    g_multi 16384 0
    usb_f_mass_storage 45056 2 g_multi
    usb_f_rndis 28672 2 g_multi
    u_ether 20480 3 usb_f_ecm,g_multi,usb_f_rndis
    libcomposite 53248 5 usb_f_ecm,usb_f_acm,usb_f_mass_storage,g_multi,usb_f_rndis
    musb_dsps 20480 0
    musb_hdrc 106496 1 musb_dsps
    phy_am335x 16384 1
    udc_core 28672 8 usb_f_ecm,usb_f_acm,usb_f_mass_storage,u_serial,musb_hdrc,u_ether,usb_f_rndis,libcomposite
    phy_generic 16384 1 phy_am335x
    phy_am335x_control 16384 1 phy_am335x
    ti_am335x_tsc 16384 0
    pvrsrvkm 401408 0
    pm33xx 16384 0
    wkup_m3_ipc 16384 1 pm33xx
    wkup_m3_rproc 16384 1
    remoteproc 49152 2 wkup_m3_rproc,wkup_m3_ipc
    omap_aes_driver 24576 0
    crypto_engine 16384 1 omap_aes_driver
    omap_crypto 16384 1 omap_aes_driver
    omap_sham 28672 0
    ti_emif_sram 16384 1 pm33xx
    musb_am335x 16384 0
    rtc_omap 20480 2
    omap_wdt 16384 0
    ti_am335x_tscadc 16384 1 ti_am335x_tsc
    sch_fq_codel 20480 3
    uio_module_drv 16384 0
    uio 20480 1 uio_module_drv
    ftdi_sio 45056 0
    usbserial 36864 1 ftdi_sio
    usbcore 217088 3 ftdi_sio,musb_hdrc,usbserial
    usb_common 16384 6 phy_am335x,udc_core,musb_hdrc,libcomposite,musb_dsps,usbcore
    cryptodev 49152 0

  • 如果用的是16bit的LCD,请按照下面网站上的配置修改试试。
    software-dl.ti.com/.../AM3_Beagle_Bone_Black_Configuration.html
  • 你好,我在生成的嵌入式系统中找到了/etc/weston.ini与/etc/profile.d/qt_env.sh,并未发现powervr.ini文件,修改后仍然显示please wait,请问还有其他方法使得16bit panel(RGB565))能够使用?

  • 你好,请问是否还有其他方法?
  • 执行cat /etc/powervr.ini命令没反应吗?
  • 原本没有这个文件,便直接创建了文件,现在按照pdf内的信息修改了三个文件,内容如下

    root@am335x-evm:~# cat /etc/powervr.ini
    [default]
    WindowSystem=libpvrPVR2D_FRONTWSEGL.so.1
    DefaultPixelFormat=RGB565


    root@am335x-evm:~# cat /etc/weston.ini
    [core]
    require-input=false
    gbm-format=rgb565

    [shell]
    locking=false
    animation=zoom
    panel-position=top
    startup-animation=fade

    [screensaver]
    # Uncomment path to disable screensaver
    #path=@libexecdir@/weston-screensaver


    root@am335x-evm:~# cat /etc/profile.d/qt_env.sh
    #!/bin/sh

    ### QT Environment Variables ###
    export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS="rotate=180"
    export SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
    export QT_QPA_EGLFS_KMS_CONFIG=/etc/qt5/eglfs_kms_cfg.json
    export QT_QPA_EGLFS_INTEGRATION=none
    export QT_QPA_EGLFS_ALWAYS_SET_MODE=1
    export QT_WAYLAND_SHELL_INTEGRATION=wl-shell
    root@am335x-evm:~#

    但开机显示仍为please wait 。

  • 请问在设置上面这些参数有reboot板子吗?运行一下kmscube test,然后把output贴出来看一下。
  • output显示如下:

    ### Display [0]: CRTC = 29, Connector = 31, format = 0x34325258
    Mode chosen [800x480] : Clock => 33200, Vertical refresh => 60, Type => 72
    Horizontal => 800, 840, 968, 1056, 0
    Vertical => 480, 491, 493, 525, 0
    ### Primary display => ConnectorId = 31, Resolution = 800x480
    PVR:(Error): OpenServices: PVRDRMOpenRender failed [0, ]
    PVR:(Error): PVRSRVConnect: Unable to open connection. [0, ]
    PVR:(Error): Couldn't connect to services [0, ]
    PVR:(Error): PVRDRIEGLGlobalDataInit: PVR Services initialisation failed [0, ]
    PVR:(Error): PVRDRICreateScreenImpl: Couldn't create EGL global data [0, ]
    MESA-LOADER: failed to open kms_swrast (search paths /usr/lib/dri)
    failed to load driver: kms_swrast
    MESA-LOADER: failed to open swrast (search paths /usr/lib/dri)
    failed to load swrast driver
    Segmentation fault (core dumped)

  • 虽然是16bit LCD,但DTS entry需要设成 bpp=32,请确认一下这个配置。
  • 确认了一下,bpp是32

  • 请问您是怎么build rootfs的?在设备树里是否有使能GPU? GPU driver是如何编译的?
  • 我使用的是sdk里面自带的tisdk-rootfs-image-am335x-evm.tar.gz

    另外·,在我使用arago-base-tisdk-image-am335x-evm作为跟文件系统时,显示屏只显示类似以下图片,之后就不动了。


  • 另外,我想请问一下设备树使能GPU是怎么实现。

  • 您使用的是旧版的filesystem,请使用PSDK6.3里的filesystem文件
    software-dl.ti.com/.../index_FDS.html
  • 我所使用的是最新版文件系统2019,因无法拍照图片是网上找到相近的。

  • 你好,我们将板子进行了修改,采用了24位的10.1寸LVDS屏幕,并将设备树中管脚与display-timings改为了新屏幕的,但仍旧显示为please wait。

    此外当选择输出一张图片时,图片显示是错乱的 :应该为一个logo却显示为两个且模糊有重影 

    请问是否还有其他需要修改的?