Bug #118741

【VC1】【0106】【实车】【EE环境】【副屏】副屏亮度调节功能无效

Added by 物联网测试组_TSCD 王维 about 2 years ago. Updated about 2 years ago.

Status:CLOSEDStart date:2023-06-12
Priority:HighDue date:
Assignee:物联网测试组_TSCD 王维% Done:

100%

Category:CD-FW
Target version:依赖客户及其供应商问题List
Need_Info:-- Found Version:106
Resolution:-- Degrated:--
Severity:Normal Verified Version:
Reproducibility:Every time Fixed Version:
Test Type:ST Root cause:屏端控制器版本问题

Description

【环境信息】
EE环境

【前提条件】
整车上电

【操作步骤】
实车调节副屏亮度

【实际结果】
屏幕亮度没有变化,亮度条有改变

【期望结果】
副屏亮度与亮度条显示一致

【备注】
中控88版本时,副屏该功能正常;刷机到90版本后出现该现象;且出现后是必现现象

VIN: LJD8BB3F7P0000384

log.txt Magnifier (3.16 MB) 物联网测试组_TSCD 王维, 2023-06-12 14:31

tlog_iov0201017500006162025411a2212290000002461_000546_0612140002.tar.gz (28.8 MB) 物联网测试组_TSCD 王维, 2023-06-12 14:31

中科创达软件股份有限公司20230612-142032.mp4 (12.5 MB) 物联网测试组_TSCD 王维, 2023-06-12 14:31

4.txt Magnifier (6.72 MB) CD BSP-杜磊, 2023-06-14 17:56

History

#1 Updated by CD FW-程天颖 about 2 years ago

  • Status changed from New to ASSIGNED
  • Assignee changed from CD FW-程天颖 to CD BSP-杜磊

■ Current conclusion
上层日志未发现异常
■ My analysis
在bug复现时间有多次调节亮度日志打印出来,上层日志并未发现异常
06-12 13:55:10.988 1548 1671 V DisplayPowerController0: Brightness [0.45454547] reason changing to: 'temporary', previous reason: 'manual'.
■ Next action
需要bsp同学进一步分析

#2 Updated by CD BSP-杜磊 about 2 years ago

  • % Done changed from 0 to 20

log.txt中未现异常。
808:01-01 08:04:57.796 0 0 I [ 0.945892] [MAX975X: max96755g_probe] INFO begin
815:01-01 08:04:57.796 0 0 I [ 1.000936] [MAX975X: max96755x_touch_init] INFO VC1 GPIO Pass
816:01-01 08:04:57.796 0 0 I [ 1.001183] [MAX975X: max96755g_probe] INFO successfully
3147:06-12 13:45:48.819 0 0 I [ 7.395198] [drm: dsi_ctrl_hw_cmn_video_engine_en] [msm-dsi-info]: DSI_0: MAX975X: Video engine = 1
3148:06-12 13:45:48.819 0 0 I [ 7.395672] [MAX975X: max96755x_drm_notifier_callback] INFO receives BLANK: UNBLANK

使用V110版本测试,背光调节正常。

#3 Updated by CD BSP-杜磊 about 2 years ago

  • Description updated (diff)

#4 Updated by CD BSP-杜磊 about 2 years ago

#5 Updated by CD BSP-杜磊 about 2 years ago

通过设置亮度条,并且回读背光寄存器相关的值,发现亮度值为1或者99时,屏幕背光依然没有变化。
17705: 06-14 14:06:14.478 0 0 I [ 3592.855098] [MAX975X: max96755g_dtc_info_show] INFO DTC_Display: Backlight Sta:1, Lvl:99, Grad:1, Lmt:0
17706: 06-14 14:06:14.478 0 0 I [ 3592.855106] [MAX975X: max96755g_dtc_info_show] INFO DTC_Display: Lcm screen_sta:2, video_sta:0x0

18407: 06-14 14:06:32.833 0 0 I [ 3611.211232] [MAX975X: max96755g_dtc_info_show] INFO DTC_Display: Backlight Sta:1, Lvl:1, Grad:1, Lmt:0
18408: 06-14 14:06:32.833 0 0 I [ 3611.211233] [MAX975X: max96755g_dtc_info_show] INFO DTC_Display: Lcm screen_sta:2, video_sta:0x0

尝试换过副屏控制器后,问题同样存在。

Next step:
此问题可能与屏的硬件相关,需要屏厂做分析

#6 Updated by CD BSP-杜磊 about 2 years ago

  • Target version set to 依赖客户及其供应商问题List

#7 Updated by CD BSP-杜磊 about 2 years ago

  • Status changed from ASSIGNED to RESOLVED
  • Assignee changed from CD BSP-杜磊 to 物联网测试组_TSCD 王维
  • % Done changed from 20 to 100
  • Root cause set to 屏端控制器版本问题

和客户高平平沟通,此问题为屏端软件问题,客户内部有票跟踪,非副屏控制器问题,需要屏端厂商更新屏端软件。

因此关闭此问题。

#8 Updated by 物联网测试组_TSCD 王维 about 2 years ago

  • Status changed from RESOLVED to VERIFIED

#9 Updated by 物联网测试组_TSCD 王维 about 2 years ago

  • Status changed from VERIFIED to CLOSED

Also available in: Atom PDF