导航

    全志在线开发者论坛

    • 注册
    • 登录
    • 搜索
    • 版块
    • 话题
    • 在线文档
    • 社区主页

    内核阶段开机logo会出现黑线,黑线位置随机

    MR Series
    3
    5
    803
    正在加载更多帖子
    • 从旧到新
    • 从新到旧
    • 最多赞同
    回复
    • 在新帖中回复
    登录后回复
    此主题已被删除。只有拥有主题管理权限的用户可以查看。
    • aiit111
      aiit111 LV 4 最后由 编辑

      屏幕是480x272的lcd电阻屏.
      淘宝购买的t113开发板卖家给的sdk开发镜像.
      原镜像分辨率是800x480,对照屏幕参数修改了设备树,uboot阶段logo正常,内核会出现黑线.

      1 条回复 最后回复 回复 引用 分享 0
      • xiaowenge
        DOT小文哥 LV 8 最后由 编辑

        看着是boot里的屏幕没配好,查查屏幕配置和驱动

        aiit111 1 条回复 最后回复 回复 引用 分享 2
        • aiit111
          aiit111 LV 4 @xiaowenge 最后由 编辑

          小文哥,之前上传的视频有问题,uboot和kernel关于lcd的配置都是一样的
          屏幕RGB 480x272 linux-5.4.273

          线索一 uboot-board.dts

          &disp {
          	disp_init_enable         = <1>;
          	disp_mode                = <0>;
          
          	screen0_output_type      = <1>;
          	screen0_output_mode      = <4>;
          
          	screen1_output_type      = <1>;
          	screen1_output_mode      = <4>;
          
          	screen1_output_format    = <0>;
          	screen1_output_bits      = <0>;
          	screen1_output_eotf      = <4>;
          	screen1_output_cs        = <257>;
          	screen1_output_range     = <2>;
          	screen1_output_scan      = <0>;
          	screen1_output_aspect_ratio = <8>;
          
          	dev0_output_type         = <1>;
          	dev0_output_mode         = <4>;
          	dev0_screen_id           = <0>;
          	dev0_do_hpd              = <0>;
          
          	dev1_output_type         = <4>;
          	dev1_output_mode         = <10>;
          	dev1_screen_id           = <1>;
          	dev1_do_hpd              = <1>;
          
          	def_output_dev           = <0>;
          
          	fb0_format               = <0>;
          	fb0_width                = <480>;
          	fb0_height               = <272>;
          
          	fb1_format               = <0>;
          	fb1_width                = <0>;
          	fb1_height               = <0>;
          	chn_cfg_mode             = <1>;
          
          	disp_para_zone           = <1>;
          	/*VCC-LCD*/
          /*	dc1sw-supply = <&reg_dc1sw>;*/
          	/*VCC-DSI*/
          /*	eldo3-supply = <&reg_eldo3>;*/
          	/*VCC-PD*/
          /*	dcdc1-supply = <&reg_dcdc1>;*/
          };
          
          &lcd0 {
          	lcd_used            = <1>;
          
          	lcd_driver_name     = "default_lcd";
          	lcd_if              = <0>;
          	lcd_x               = <480>;
          	lcd_y               = <272>;
          	lcd_width           = <95>;
          	lcd_height          = <54>;
          	lcd_dclk_freq       = <10>;
          
          	lcd_pwm_used        = <1>;
          	lcd_pwm_ch          = <7>;
          	lcd_pwm_freq        = <10000>;
          	lcd_pwm_pol         = <1>;
          
          	lcd_hbp             = <44>;/*43+1*/
          	lcd_ht              = <526>;
          	lcd_hspw            = <1>;/*1*/
          	lcd_vbp             = <13>;
          	lcd_vt              = <286>;
          	lcd_vspw            = <1>;
          
          	lcd_lvds_if         = <0>;
          	lcd_lvds_colordepth = <1>;
          	lcd_lvds_mode       = <0>;
          	lcd_frm             = <0>;
          	lcd_io_phase        = <0x0000>;
          	lcd_gamma_en        = <0>;
          	lcd_bright_curve_en = <0>;
          	lcd_cmap_en         = <0>;
          
          	deu_mode            = <0>;
          	lcdgamma4iep        = <22>;
          	smart_color         = <90>;
          	pinctrl-0 = <&rgb18_pins_a>;
          	pinctrl-1 = <&rgb18_pins_b>;
          };
          

          board.dts

          &disp {
          	disp_init_enable         = <1>;
          	disp_mode                = <0>;
          
          	screen0_output_type      = <1>;
          	screen0_output_mode      = <4>;
          
          	screen1_output_type      = <1>;/*3*/
          	screen1_output_mode      = <4>;
          	
          	screen1_output_format    = <0>;
          	screen1_output_bits      = <0>;
          	screen1_output_eotf      = <4>;
          	screen1_output_cs        = <257>;
          	screen1_output_range     = <2>;
          	screen1_output_scan      = <0>;
          	screen1_output_aspect_ratio = <8>;
          	dev0_output_type         = <1>;
          	dev0_output_mode         = <4>;
          	dev0_screen_id           = <0>;
          	dev0_do_hpd              = <0>;
          
          	dev1_output_type         = <4>;
          	dev1_output_mode         = <10>;
          	dev1_screen_id           = <1>;
          	dev1_do_hpd              = <1>;
          
          	def_output_dev           = <0>;
          	disp_rotation_used	 = <1>;
          	degree0			 = <0>;
          	fb0_format               = <0>;
          	fb0_buffer_num           = <1>;	
          	fb0_width                = <480>;
          	fb0_height               = <272>;
          	/*fb0_width                = <800>;*/
          	/*fb0_height               = <480>;*/  /*read from lcd*/
          	fb1_format               = <0>;
          	fb1_width                = <0>;
          	fb1_height               = <0>;
          	chn_cfg_mode             = <1>;
          
          	disp_para_zone           = <1>;
          	/*VCC-LCD*/
          /*	dc1sw-supply = <&reg_dc1sw>;*/
          	/*VCC-DSI*/
          /*	eldo3-supply = <&reg_eldo3>;*/
          	/*VCC-PD*/
          /*	dcdc1-supply = <&reg_dcdc1>;*/
          };
          
          &lcd0 {
          	lcd_used            = <1>;
          
          	lcd_driver_name     = "default_lcd";
          	lcd_backlight       = <50>;
          	lcd_if              = <0>;
          
          	lcd_x               = <480>;
          	lcd_y               = <272>;
          	lcd_width           = <95>;
          	lcd_height          = <54>;
          	lcd_dclk_freq       = <10>;
          
          	/*lcd_pwm_used        = <1>;
          	lcd_pwm_ch          = <7>;
          	lcd_pwm_freq        = <10000>;
          	lcd_pwm_pol         = <1>;*/
          
          	lcd_hbp             = <44>;
          	lcd_ht              = <526>;
          	lcd_hspw            = <1>;
          	lcd_vbp             = <13>;
          	lcd_vt              = <286>;
          	lcd_vspw            = <1>;
          
          	lcd_lvds_if         = <0>;
          	lcd_lvds_colordepth = <1>;
          	lcd_lvds_mode       = <0>;
          	lcd_frm             = <0>;
          	lcd_io_phase        = <0x0000>;
          	lcd_gamma_en        = <0>;
          	lcd_bright_curve_en = <0>;
          	lcd_cmap_en         = <0>;
          
          	deu_mode            = <0>;
          	lcdgamma4iep        = <22>;
          	smart_color         = <90>;
          
          	pinctrl-0 = <&rgb18_pins_a>;
          	pinctrl-1 = <&rgb18_pins_b>;
          };
          

          线索二 内核输出
          [ 0.508712] [DISP]disp_module_init
          [ 0.512657] disp 5000000.disp: Adding to iommu group 0
          [ 0.518295] [DISP] parser_disp_init_para,line:1430:
          [ 0.518299] of_property_read fb0_width fail
          [ 0.527390] [DISP] disp_init,line:2386:
          [ 0.527394] smooth display screen:0 type:1 mode:4
          [ 0.552098] display_fb_request,fb_id:0
          [ 0.557423] Freeing logo buffer memory: 1500K
          [ 0.562297] disp_al_manager_apply ouput_type:1
          [ 0.566842] [DISP] lcd_clk_config,line:744:
          [ 0.566853] disp 0, clk: pll(60000000),clk(60000000),dclk(10000000) dsi_rate(60000000)
          [ 0.566853] clk real:pll(288000000),clk(288000000),dclk(12000000) dsi_rate(0)
          [ 0.570471] [DISP]disp_module_init finish
          [ 0.571150] sunxi_pwm_enable_dual: can't parse pwm device
          [ 0.587556] sunxi_sid_init()551 - insmod ok
          [ 0.601112] sun8iw20-pinctrl 2000000.pinctrl: 2000000.pinctrl supply vcc-pb not found, using dummy regulator

          所搜了网上许多资料,推测原因是由于内核初始化lcd屏幕fb内存释放引起,的目前有两个方向,更新新的sdk,更新的话,之前对虚拟机中做的配置还需要再来一遍,有没有其他解决方法,

          @xiaowenge

          D 1 条回复 最后回复 回复 引用 分享 1
          • D
            double_X LV 2 最后由 编辑

            有解决吗?也遇到到了会出现黑线的问题

            1 条回复 最后回复 回复 引用 分享 0
            • D
              double_X LV 2 @aiit111 最后由 编辑

              @aiit111 有解决吗

              1 条回复 最后回复 回复 引用 分享 0
              • 1 / 1
              • First post
                Last post

              Copyright © 2024 深圳全志在线有限公司 粤ICP备2021084185号 粤公网安备44030502007680号

              行为准则 | 用户协议 | 隐私权政策