IMx93 uses lt9611 chip to convert MIPI into DSI without image display

[MasterLu]

We use lt9611 to convert MIPI DSI to HDMI,then make the following configuration in the kernel：

1.Configured DRM_ LONTIUM_ LT9611=y in defconfig

2.Configure lt9611 and mipi dsi definitions in the device tree

hdmi@39 {
compatible = "lontium,lt9611";
pinctrl-0 = <&pinctrl_9611>;
pinctrl-names = "default";
  vdd-supply = <&reg_vddio_1v8>;
  vcc-supply = <&reg_vdd_3v3>;

reg = <0x39>;
reset-gpios = <&at9555 9 GPIO_ACTIVE_HIGH>;
enable-gpios = <&at9555 13 GPIO_ACTIVE_HIGH>;
interrupts-extended = <&gpio3 23 IRQ_TYPE_EDGE_FALLING>;
      status = "okay";

ports {
#address-cells = <1>;
#size-cells = <0>;

hdmi_disp: port@0 {
reg = <0>;

lt9611_1_in: endpoint {
remote-endpoint = <&mipi_dsi_bridge1_out>;
};
};

port@2 {
reg = <2>;
lt9611_out: endpoint {
remote-endpoint = <&hdmi_con>;
};
};
};
};

&dsi {
status = "okay";
ports{
#address-cells = <1>;
#size-cells = <0>;

hdmi:port@1 {
reg = <1>;
mipi_dsi_bridge1_out: endpoint {
remote-endpoint = <&lt9611_1_in>;
};
};
};
};

At this point, the compiled image has the following error in the startup log：

[    1.787959] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/dsi@4ae10000 to encoder DSI-34: -517
[    1.798060] dw-mipi-dsi-imx 4ae10000.dsi: [drm:dw_mipi_dsi_imx_bind] *ERROR* failed to attach bridge: -517
[    1.808108] dw-mipi-dsi-imx 4ae10000.dsi: [drm:dw_mipi_dsi_imx_probe] *ERROR* failed to register component: -517


failed to find dsi host

Then I made a simple modification to the lt9611 driver

in lt9611_probe function,remove lt9611_attach_dsi
static int lt9611_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
...
...
	i2c_set_clientdata(client, lt9611);

	lt9611->bridge.funcs = &lt9611_bridge_funcs;
	lt9611->bridge.of_node = client->dev.of_node;
	lt9611->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID |
			     DRM_BRIDGE_OP_HPD | DRM_BRIDGE_OP_MODES;
	lt9611->bridge.type = DRM_MODE_CONNECTOR_HDMIA;

	drm_bridge_add(&lt9611->bridge);
	printk("%s start\n",__func__);
	/* Attach primary DSI */
	/*
	lt9611->dsi0 = lt9611_attach_dsi(lt9611, lt9611->dsi0_node);
	if (IS_ERR(lt9611->dsi0)) {
		ret = PTR_ERR(lt9611->dsi0);
		goto err_remove_bridge;
	}
*/
	/* Attach secondary DSI, if specified */


in lt9611_irq_thread_handler,add lt9611_attach_dsi when hdmi pluged in
static irqreturn_t lt9611_irq_thread_handler(int irq, void *dev_id)
{
...
...
	/* hpd changed high */
	if (irq_flag3 & 0x40) {
		dev_info(lt9611->dev, "hdmi cable connected\n");

		regmap_write(lt9611->regmap, 0x8207, 0x7f);
		regmap_write(lt9611->regmap, 0x8207, 0x3f);
		printk("attach to dsi\n");
		lt9611->dsi0 = lt9611_attach_dsi(lt9611, lt9611->dsi0_node);
		if(lt9611->dsi0){
			printk("success\n");
		}
	}

Successfully modified lt9611 and dsi attach through the above changes. Execute the modetest and fbset commands to see the following information

modetest
....
...
trying to open device 'imx-drm'...done
Encoders:
id      crtc    type    possible crtcs  possible clones
34      0       DSI     0x00000001      0x00000001

Connectors:
id      encoder status          name            size (mm)       modes   encoders
35      0       connected       HDMI-A-1        150x100         0       34
  props:
        1 EDID:
                flags: immutable blob
                blobs:

                value:
                        00ffffffffffff0030ae861001010101
                        22150103810f0a78eee5b5a355499927
                        135054afef0045c081c0818081808180
                        9500950fd1c0a1130040415819202c58
                        36009a560000001c000000fc004c454e
                        204c3139353077440a20000000fd0032
                        4c1e510e000a202020202020000000ff
                        0042333433323834350a2020202001ce
                        020321714e0607020315961112130414
                        051f90230907078301000065030c0010
                        008c0ad090204031200c405500b98821
                        000018011d8018711c1620582c2500b9
                        882100009e011d80d0721c1620102c25
                        80b9882100009e011d00bc52d01e20b8
                        285540b9882100001e023a80d072382d
                        40102c4580b9882100001e00000000d0
        2 DPMS:
                flags: enum
                enums: On=0 Standby=1 Suspend=2 Off=3
                value: 0
        5 link-status:
                flags: enum
                enums: Good=0 Bad=1
                value: 0
        6 non-desktop:
                flags: immutable range
                values: 0 1
                value: 0
        4 TILE:
                flags: immutable blob
                blobs:

                value:

CRTCs:
id      fb      pos     size
33      0       (0,0)   (0x0)
  #0  nan 0 0 0 0 0 0 0 0 0 flags: ; type: 
  props:
        24 VRR_ENABLED:
                flags: range
                values: 0 1
                value: 0

Planes:
id      crtc    fb      CRTC x,y        x,y     gamma size      possible crtcs
31      0       0       0,0             0,0     0               0x00000001
  formats: XR24 AR24 RG16 XB24 AB24 AR15 XR15
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 1
        32 zpos:
                flags: immutable range
                values: 0 0
                value: 0

Frame buffers:
id      size    pitch


fbset

root@imx93evk:~# fbset

mode "1920x1080"
    geometry 1920 1080 1920 1080 32
    timings 0 0 0 0 0 0 0
    accel true
    rgba 8/16,8/8,8/0,0/0
endmode

Even if I can see the above information, HDMI still has no image output. I hope everyone can give me some suggestions

[Zhiming_Liu]

You should add more log print in lt9611 driver.

[MasterLu]

Here are all the logs

[Zhiming_Liu]

The edid seem incorrect, there is no refresh rate information about HDMI, you can dump edid in driver:

[ 18.092789] lt9611_get_edid_block
[ 18.096128] [drm:update_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
[ 18.096147] [drm:update_display_info] HDMI: DVI dual 0, max TMDS clock 0 kHz
[ 18.096169] [drm:update_display_info] Supported Monitor Refresh rate range is 0 Hz - 0 Hz
[ 18.096176] [drm:update_display_info] HDMI: DVI dual 0, max TMDS clock 0 kHz

[MasterLu · Accepted solution]

I added an hdmi enable function in lontium-lt9611.c.

Now it can be displayed, but it can only be displayed 1920x1080@60Hz

static void lt9611_hdmi_out_enable(struct lt9611 *lt9611) //dsren
{
	struct reg_sequence reg_cfg[] = {
		{ 0x8123, 0x40 },

		{ 0x82de, 0x20 }, 
		{ 0x82de, 0xe0 },

		{ 0x8018, 0xdc },
		{ 0x8018, 0xfc },

		{ 0x8016, 0xf1 },
		{ 0x8016, 0xf3 },
		{ 0x8011, 0x5a },
		{ 0x8011, 0xfa },

		{ 0x8130, 0xea },

	};
	regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg));
	
}

Reading the edid appears normal

[   11.413892] lt9611_read_edid edid Loop[0]:00 ff ff ff ff ff ff 00 05 e3 90 27 62 1b 00 00 2b 1d 01 03 80 3c 22 78 2e 67 a5 a5 55 4d a2 27 
[   11.441616] 
[   11.467163] lt9611_read_edid edid Loop[1]:0e 50 54 bf ef 00 d1 c0 b3 00 95 00 81 80 81 40 81 c0 01 01 01 01 4d d0 00 a0 f0 70 3e 80 30 20 
[   11.477767] 
[   11.500529] lt9611_read_edid edid Loop[2]:35 00 55 50 21 00 00 1a a3 66 00 a0 f0 70 1f 80 30 20 35 00 55 50 21 00 00 1a 00 00 00 fc 00 55 
[   11.510886] 
[   11.532560] lt9611_read_edid edid Loop[3]:32 37 39 30 52 33 42 0a 20 20 20 20 00 00 00 fd 00 17 4b 1e a0 3c 00 0a 20 20 20 20 20 20 01 d9 
[   11.542882] 
[   11.568331] lt9611_read_edid edid Loop[4]:02 03 3e f1 4c 90 04 03 1f 13 01 12 5d 5e 5f 60 61 23 09 07 07 83 01 00 00 6d 03 0c 00 20 00 38 
[   11.578674] 
[   11.604081] lt9611_read_edid edid Loop[5]:3c 20 00 60 01 02 03 67 d8 5d c4 01 78 80 03 e3 05 e3 01 e3 0f 00 0c e6 06 07 01 53 53 00 56 5e 
[   11.614409] 
[   11.639822] lt9611_read_edid edid Loop[6]:00 a0 a0 a0 29 50 30 20 35 00 55 50 21 00 00 1e 02 3a 80 18 71 38 2d 40 58 2c 45 00 55 50 21 00 
[   11.650152] 
[   11.675581] lt9611_read_edid edid Loop[7]:00 1e 4d 6c 80 a0 70 70 3e 80 30 20 3a 00 55 50 21 00 00 1a 00 00 00 00 00 00 00 00 00 00 00 c7 
[   11.685914] 
[   11.700134] lt9611_get_edid_block 
[   11.704176] drm_helper_probe_add_cmdline_mode
[   11.704236] mode[1]: 1920 x 1080drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.708619] mode[2]: 1920 x 1080drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.717321] mode[3]: 1920 x 1080drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.726024] mode[4]: 720 x 576drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.734722] mode[5]: 720 x 480drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.743252] mode[6]: 720 x 480drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.751775] mode[7]: 640 x 480drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.760306] mode[8]: 640 x 480drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.768832] mode[9]: 640 x 480drm_mode_validate_pipeline drm_crtc_mode_valid !MODE_OK MODE_OK
[   11.777353] mode[10]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.785878] mode[11]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.797954] mode[12]: 2560 x 1440drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.810031] mode[13]: 1920 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.822116] mode[14]: 1680 x 1050drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.834207] mode[15]: 1440 x 900drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.846293] mode[16]: 1280 x 1024drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.858280] mode[17]: 1280 x 960drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.870354] mode[18]: 1280 x 720drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.882344] mode[19]: 800 x 600drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.894338] mode[20]: 800 x 600drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.906241] mode[21]: 640 x 480drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.918141] mode[22]: 640 x 480drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.930039] mode[23]: 640 x 480drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.941949] mode[24]: 720 x 400drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.953857] mode[25]: 1280 x 1024drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.965762] mode[26]: 1024 x 768drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.977836] mode[27]: 1024 x 768drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   11.989826] mode[28]: 1024 x 768drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.001823] mode[29]: 832 x 624drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.013816] mode[30]: 800 x 600drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.025859] mode[31]: 800 x 600drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.037774] mode[32]: 1280 x 720drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.049680] mode[33]: 1920 x 1080drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.061677] mode[34]: 1280 x 720drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.073754] mode[35]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.085744] mode[36]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.097819] mode[37]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.110008] mode[38]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.122105] mode[39]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.134190] mode[40]: 1280 x 720drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.146265] mode[41]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.158252] mode[42]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.170323] mode[43]: 3840 x 2160drm_mode_validate_pipeline drm_bridge_chain_mode_valid !MODE_OK drm_mode_validate_pipeline != MODE_OK
[   12.182406] Modeline "3840x2160": 60 533250 3840 3888 3920 4000 2160 2163 2168 2222 0x48 0x9
[   12.202901] Not using 3840x2160 mode: ERROR
[   12.207083] Modeline "3840x2160": 30 262750 3840 3888 3920 4000 2160 2163 2168 2191 0x40 0x9
[   12.215513] Not using 3840x2160 mode: PANEL
[   12.219690] Modeline "2560x1440": 60 241500 2560 2608 2640 2720 1440 1443 1448 1481 0x40 0x5
[   12.228121] Not using 2560x1440 mode: BAD
[   12.232130] Modeline "1920x2160": 60 277250 1920 1968 2000 2080 2160 2163 2173 2222 0x40 0x9
[   12.240575] Not using 1920x2160 mode: BAD
[   12.244587] Modeline "1680x1050": 60 119000 1680 1728 1760 1840 1050 1053 1059 1080 0x40 0x9
[   12.253021] Not using 1680x1050 mode: BAD
[   12.257027] Modeline "1440x900": 60 88750 1440 1488 1520 1600 900 903 909 926 0x40 0x9
[   12.265056] Not using 1440x900 mode: BAD
[   12.268992] Modeline "1280x1024": 60 108000 1280 1328 1440 1688 1024 1025 1028 1066 0x40 0x5
[   12.277433] Not using 1280x1024 mode: BAD
[   12.281443] Modeline "1280x960": 60 108000 1280 1376 1488 1800 960 961 964 1000 0x40 0x5
[   12.289531] Not using 1280x960 mode: BAD
[   12.293453] Modeline "1280x720": 60 74250 1280 1390 1430 1650 720 725 730 750 0x40 0x5
[   12.301370] Not using 1280x720 mode: BAD
[   12.305307] Modeline "800x600": 60 40000 800 840 968 1056 600 601 605 628 0x40 0x5
[   12.312875] Not using 800x600 mode: BAD
[   12.316709] Modeline "800x600": 56 36000 800 824 896 1024 600 601 603 625 0x40 0x5
[   12.324278] Not using 800x600 mode: BAD
[   12.328101] Modeline "640x480": 75 31500 640 656 720 840 480 481 484 500 0x40 0xa
[   12.335581] Not using 640x480 mode: BAD
[   12.339413] Modeline "640x480": 73 31500 640 664 704 832 480 489 492 520 0x40 0xa
[   12.347004] Not using 640x480 mode: BAD
[   12.350857] Modeline "640x480": 67 30240 640 704 768 864 480 483 486 525 0x40 0xa
[   12.358344] Not using 640x480 mode: BAD
[   12.362185] Modeline "720x400": 70 28320 720 738 846 900 400 412 414 449 0x40 0x6
[   12.369669] Not using 720x400 mode: BAD
[   12.373506] Modeline "1280x1024": 75 135000 1280 1296 1440 1688 1024 1025 1028 1066 0x40 0x5
[   12.381938] Not using 1280x1024 mode: BAD
[   12.385944] Modeline "1024x768": 75 78750 1024 1040 1136 1312 768 769 772 800 0x40 0x5
[   12.393854] Not using 1024x768 mode: BAD
[   12.397774] Modeline "1024x768": 70 75000 1024 1048 1184 1328 768 771 777 806 0x40 0xa
[   12.405685] Not using 1024x768 mode: BAD
[   12.409603] Modeline "1024x768": 60 65000 1024 1048 1184 1344 768 771 777 806 0x40 0xa
[   12.417515] Not using 1024x768 mode: BAD
[   12.421438] Modeline "832x624": 75 57284 832 864 928 1152 624 625 628 667 0x40 0xa
[   12.429008] Not using 832x624 mode: BAD
[   12.432840] Modeline "800x600": 75 49500 800 816 896 1056 600 601 604 625 0x40 0x5
[   12.440403] Not using 800x600 mode: BAD
[   12.444235] Modeline "800x600": 72 50000 800 856 976 1040 600 637 643 666 0x40 0x5
[   12.451800] Not using 800x600 mode: BAD
[   12.455632] Modeline "1280x720": 60 74250 1280 1390 1430 1650 720 725 730 750 0x40 0x5
[   12.463544] Not using 1280x720 mode: BAD
[   12.467463] Modeline "1920x1080": 50 148500 1920 2448 2492 2640 1080 1084 1089 1125 0x40 0x5
[   12.475901] Not using 1920x1080 mode: BAD
[   12.479912] Modeline "1280x720": 50 74250 1280 1720 1760 1980 720 725 730 750 0x40 0x5
[   12.487832] Not using 1280x720 mode: BAD
[   12.491757] Modeline "3840x2160": 24 297000 3840 5116 5204 5500 2160 2168 2178 2250 0x40 0x5
[   12.500186] Not using 3840x2160 mode: BAD
[   12.504201] Modeline "3840x2160": 25 297000 3840 4896 4984 5280 2160 2168 2178 2250 0x40 0x5
[   12.512632] Not using 3840x2160 mode: BAD
[   12.516636] Modeline "3840x2160": 30 297000 3840 4016 4104 4400 2160 2168 2178 2250 0x40 0x5
[   12.525068] Not using 3840x2160 mode: PANEL
[   12.529248] Modeline "3840x2160": 50 594000 3840 4896 4984 5280 2160 2168 2178 2250 0x40 0x5
[   12.537678] Not using 3840x2160 mode: ERROR
[   12.541857] Modeline "3840x2160": 60 594000 3840 4016 4104 4400 2160 2168 2178 2250 0x40 0x5
[   12.550292] Not using 3840x2160 mode: ERROR
[   12.554476] Modeline "1280x720": 60 74176 1280 1390 1430 1650 720 725 730 750 0x40 0x5
[   12.562386] Not using 1280x720 mode: BAD
[   12.566306] Modeline "3840x2160": 24 296703 3840 5116 5204 5500 2160 2168 2178 2250 0x40 0x5
[   12.574736] Not using 3840x2160 mode: BAD
[   12.578742] Modeline "3840x2160": 30 296703 3840 4016 4104 4400 2160 2168 2178 2250 0x40 0x5
[   12.587173] Not using 3840x2160 mode: PANEL
[   12.591352] Modeline "3840x2160": 60 593407 3840 4016 4104 4400 2160 2168 2178 2250 0x40 0x5
[   12.599783] Not using 3840x2160 mode: ERROR
[   12.603969] Modeline "1920x1080": 60 148500 1920 2008 2052 2200 1080 1084 1089 1125 0x40 0x5
[   12.612407] Modeline "1920x1080": 60 148500 1920 2008 2052 2200 1080 1084 1089 1125 0x40 0x5
[   12.620839] Modeline "1920x1080": 60 148352 1920 2008 2052 2200 1080 1084 1089 1125 0x40 0x5
[   12.629277] Modeline "720x576": 50 27000 720 732 796 864 576 581 586 625 0x40 0xa
[   12.636761] Modeline "720x480": 60 27027 720 736 798 858 480 489 495 525 0x40 0xa
[   12.644244] Modeline "720x480": 60 27000 720 736 798 858 480 489 495 525 0x40 0xa
[   12.651724] Modeline "640x480": 60 25200 640 656 752 800 480 490 492 525 0x40 0xa
[   12.659202] Modeline "640x480": 60 25175 640 656 752 800 480 490 492 525 0x40 0xa
[   12.666683] Modeline "640x480": 60 25175 640 656 752 800 480 490 492 525 0x40 0xa