内核固化的显示参数由数据结构drm_dmt_modes来描述,基本上涵盖了场景的显示参数,该表是基于VESA DMT(display monitor timing)协议自动生成的。 staticconststructdrm_display_modedrm_dmt_modes[] = { /* 0x01 - 640x350@85Hz */ { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER,31500,640,672, 736,832,0,...
* modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode * should be 1152x870, again for the Mac, but instead we use the x864 DMT * mode. * * The DMT modes have been fact-checked; the rest are mild guesses. */staticconststructdrm_display_modeedid_est_modes[]...
int hdisplay, int vdisplay); extern int drm_edid_header_is_valid(const u8 *raw_edid); extern bool drm_edid_block_valid(u8 *raw_edid); extern bool drm_edid_is_valid(struct edid *edid); struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, int hsize, int vsize, int...
I have a display which supports both 800x600 and 1024x768. However when I ran cat /sys/devices/platform/display-subsystem/drm/card1/card1-HDMI-A-1/modes I only can see 800x600 is listed but not 1024x768. Both modes are listed in drm_dmt_modes[] and edid_est_modes[]...
modeset,client) if(modeset->crtc==crtc) returnmodeset; returnNULL; } staticstructdrm_display_mode* drm_connector_get_tiled_mode(structdrm_connector*connector) { structdrm_display_mode*mode; list_for_each_entry(mode,&connector->modes,
extern int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay); extern int drm_edid_header_is_valid(const u8 *raw_edid); extern bool drm_edid_is_valid(struct edid *edid); struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, int hsize, in...
int vdisplay ) drm_add_modes_noedid - add modes for the connectors without EDID : connector we're probing : the horizontal display limit : the vertical display limit Add the specified modes to the connector's mode list. Only when the hdisplay/vdisplay is not beyond the given limit, ...
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* * Note that the caller function will automatically add standard VESA * DMT modes up to 1024x768 if the .get_modes() helper operation returns * no mode and if the connector status is connector_status_connected or * connector_status_unknown. There is no need to call * drm_add_modes_...
> + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, lol no. Nobody does a size this large without also doing reduced blanking. I have a patch somewhere to fix the DMT list to re-include the reduced blanking modes (as should have been done in the first place). I'll send ...