screen blur problem on imx8qm

wulizhi — Wed, 15 Sep 2021 03:31:27 GMT

Hi :

we are trying to bringup a panel.

Our hardware is dsi1->max96789->max96752->lvds panel. An now the panel can shows normal except a litter blur of the screen.

The display parameter we used is like below:

static const struct drm_display_mode test_1920x1200_mode = {
.clock = 148500,
.hdisplay = 1920,
.hsync_start = 1920 + 88,
.hsync_end = 1920 + 88 + 44,
.htotal = 1920 + 88 + 44 + 148,
.vdisplay = 1080,
.vsync_start = 1080 + 4,
.vsync_end = 1080 + 4 + 5,
.vtotal = 1080 + 4 + 5 + 36,
.vrefresh = 60,
.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
};

also if we enable the deskew function of max96789, which remove jitter from the timing uncertainties introduced from the mipi-to-parallel clock-domain crossing and low power - high speed transition. The blur problem would be gone.

Could you help us to check why it happened blur problem.

Thanks

Re: screen blur problem on imx8qm

hymmsx — Fri, 18 Oct 2024 06:40:12 GMT

Have you resolved your issue

topic Re: screen blur problem on imx8qm in i.MX Processors

screen blur problem on imx8qm

Re: screen blur problem on imx8qm