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标题: rk3128，HDMI输出1024x768分辨率问题 [打印本页]

作者: 云天 时间: 2018-7-23 16:12
标题: rk3128，HDMI输出1024x768分辨率问题
目前我烧录了官方的ubuntu后，内核重编译，对lcd_B101ew05.dtsi文件修改如下：
disp_timings: display-timings {
                     native-mode = <&timing0>;
                     timing0: timing0 {
screen-type = <SCREEN_LVDS>;
lvds-format = <LVDS_8BIT_2>;
out-face = <OUT_D888_P666>;
color-mode = <COLOR_RGB>;
clock-frequency = <65000000>;
hactive = <1024>;
vactive = <768>;
hback-porch = <160>;
hfront-porch = <24>;
vback-porch = <8>;
vfront-porch = <6>;
hsync-len = <29>;
vsync-len = <3>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
                     };
            };

同时，rockchip-hdmi.c文件的hdmi_mode[]增加了
{ { "1024x768p@60Hz", 60, 1024, 768, 65000000, 160, 24, 29, 3, 136,6, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 0, 0 }, 4, HDMI_1024X768P_60HZ, 1, OUT_P888},
烧录内核后，进入ubuntu桌面，显示还是不对，图像有挤压现象，系统的显示设置中还是只有1280x800，请问下如何解决啊？！

作者: penguin 时间: 2018-7-24 09:26
+ { {       "1024x768p@60Hz",    60,    1024, 768, 65000000,    160, 24,    29,    3,    136, 6,    FB_SYNC_HOR_HIG
H_ACT | FB_SYNC_VERT_HIGH_ACT, 0,    0    },    108, HDMI_1024x768P_60HZ, 1,    OUT_P888},

+++ b/kernel/drivers/video/rockchip/hdmi/rockchip-hdmi.h
@@ -129,6 +129,7 @@ enum hdmi_video_infomation_code {
      HDMI_3840X2160P_30HZ_4_3,    /*105*/
      HDMI_3840X2160P_50HZ_4_3,
      HDMI_3840X2160P_60HZ_4_3,
+ HDMI_1024x768P_60HZ,
};

/* HDMI Extended Resolution */
@@ -476,7 +477,7 @@ struct hdmi {

/* HDMI default vide mode */
#define HDMI_VIDEO_DEFAULT_MODE                      HDMI_1280X720P_60HZ

作者: 云天 时间: 2018-7-24 15:42

penguin 发表于 2018-7-24 09:26
+ { { "1024x768p@60Hz", 60, 1024, 768, 65000000, 160, 24, 29, ...

你提到的：什么意思？？？
/* HDMI Extended Resolution */
@@ -476,7 +477,7 @@ struct hdmi {

/* HDMI default vide mode */
#define HDMI_VIDEO_DEFAULT_MODE HDMI_1280X720P_60HZ

struct hdmi要做变动？HDMI_VIDEO_DEFAULT_MODE不是HDMI_1024X768P_60HZ？

作者: 云天 时间: 2018-7-24 15:45
#define HDMI_DEFAULT_SCALE 95
#define HDMI_AUTO_CONFIG false

/* HDMI default vide mode */
#define HDMI_VIDEO_DEFAULT_MODE HDMI_1024X768P_60HZ //HDMI_1280X720P_60HZ

/* HDMI video information code according CEA-861-F */
enum hdmi_video_infomation_code {
HDMI_640X480P_60HZ = 1,
HDMI_720X480P_60HZ_4_3,
HDMI_720X480P_60HZ_16_9,
HDMI_1024X768P_60HZ,
HDMI_1280X720P_60HZ, /*5*/
。。。。。。

上面是我原来改的，我是把HDMI_1024X768P_60HZ插入到4号位置，是需要加到最后吗？
另外能告知下HDMI_DEFAULT_SCALE 95 的含义吗？

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