THIS POST IS NOW OUTDATED! The instructions below only apply to kernel version setenv bootargs mxcfb0:dev=hdmi,1280x720M@60,if=RGB24 U-Boot> saveenv U-Boot> run bootcmd Windows CE Windows Embedded Compact 7 from Adeneo contains two support for HDMI and the Freescale LVDS1 panel in the form of two separate O/S images ( NK*.bin). QNX At the time of this writing, only the 7″ Parallel RGB display is supported in QNX. Known issues There is a known bug in the HDMI driver which causes display corruption if an HDMI monitor is either disconnected and reconnected or powered down and back up during operation. A customer just reminded me of an outstanding bug related to Ubuntu releases and the 7″ display. It appears that something in the startup of X decides to re-configure the display and in the process, bit 17 of the IPU1_DI0_GENERAL register gets cleared to zero. This bit defines the pixel clock polarity and this will result in visible artifacts on the display.
Windows CE 6.0 / 500Mhz CPU / 128MB RAM. 1-year limited. 7' digital high definition (800x480) TFT touchscreen display.Built-in. March 19, 2013.
If you see this problem, you can use the ‘devregs’ tool at to verify the symptom and temporarily fix it. Root@linaro-ubuntu-desktop:~# devregs IPU1_DI0_GENERAL IPU1_DI0_GENERAL:0x02640000 =0x00300004 root@linaro-ubuntu-desktop:~# devregs IPU1_DI0_GENERAL 0x00320004 IPU1_DI0_GENERAL:0x02640000 =0x00300004 IPU1_DI0_GENERAL:0x02640000 == 0x00300004.0x00320004 You can read about devregs in this post: And you can get the sources here. Hi Eric, I am trying to install Linux on our custom board similar to the I.MX6Q SabreLite board. I am using linux-imx6-boundary-imx_3.0.35_4.0.0 and linux-imx6-boundary-imx_3.0.35_1.1.1.
On the SabreLite HDMI uses I2C2, and on our custom board HDMI uses I2C3. How to move HDMI from I2C2 to I2C3? I am move I2C_BOARD_INFO(“mxc_hdmi_i2c”, 0x50) from static struct i2c_board_info mxc_i2c1_board_info[] __initdata to static struct i2c_board_info mxc_i2c2_board_info[] __initdata in board_mx6q_sabrelite.c What else it is necessary to make?
(excuse for my bad English). During u-boot loading time I see the image on the monitor, and during Linux operating time – no. I am looking for some video assistance on a custom i.MX6Q board we have in development.
Currently I have HDMI and LVDS displays connected. When I boot our Ubuntu Linux kernel, only the video source which is attached to mxcfb0 displays the GUI. Drunk quest print and play. I can still utilize both displays using gstreamer.
Should I be able to use both displays to extend the Ubuntu GUI? If so is the xorg.conf file used to set this up? Earlier in the boot cycle only the selected display displays the Linux penguins while the other display isn’t even in sync. Once the file system starts to load both displays get in sync. Following is the u-boot environment variables: bootargs=console=ttymxc0,115200 video=mxcfb0:dev=hdmi,1280x720M@60,if=RGB24 video=mxcfb1:dev=ldb,1024x600M@60,if=RGB666 If I switch the fb0 and fb1 variables, then the LVDS display works and the HDMI display does not. Is there something within my custom board files that control which display gets enabled?
How do I get both displays to work during the early boot cycle? I would expect to see penguins on both displays. Thanks is advance.
Hi Paul, Nice dig with the “my iWave board does.” 😉 Penguins are easy though. You’ll just need to unblank /dev/fb2 somewhere in the boot process: # echo 0 > /sys/class/graphics/fb2/blank Note that /dev/fb1 is the YUV overlay associated with /dev/fb0 though. It’s not normally the second display. You can get a more complete picture through this bit of shell-fu to browse the /sys tree: for fb in /sys/class/graphics/fb?; do echo '----------- $fb'; cat $fb/name; cat $fb/mode; cat $fb/fsl_disp_*; done.
New finding on the Dual Screen issue with our iMX6Q custom board. I found the following error in my Xorg.0.log file – Screen 1 deleted because of no matching config section. This would explain why I cannot utilize the second display. Any ideas what is missing? Hi, For some projects we need to adapt several LVDS displays to be supported on a sabreLITE board.
Journal Page for Jul 10, 2014. Feb 16, 2019 / 09:52 pm. So he wears his XBox controller in a holster powering his weight loss garment? Essay writing service - 2019.02.23 Reading is to the mind what exercise is to the body. [url=writing service[/url] https. United States: Charlotte (Nc) Nagaoka, Japan; Cachoeiro De Itapemirim, Brazil; Bissau, Guinea-Bissau; Czestochowa, Poland. Free online heuristic URL scanning and malware detection. Scan websites for malware, exploits and other infections with quttera detection engine to check if the site is safe to browse. Free Online Website Malware Scanner check website for malware and vulnerability exploits online. Remont pusko zaryadnoe ustrojstvo dubna m 62.
We are using JB 4.2.2-1.1.0 from the bouldary repository. I found a 640×480 TFT (AUO G104VN01) and an appropriate connector and after changing the 6x_bootscript_jb.txt I could see a good picture on the display. But it seems that the Android desktop is 800 pixel width. I only can see 2/3 of the Android desktop.
Strange is that dm.widthPixels gives 640. Is the minimum Android desktop widt 800? As we are running an own compiled Android it is possible for us to do changes. Where and how does Android set the the desktop width? Many thanks, MichaelG. Hi Michael, The short answer is “No”.
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THIS POST IS NOW OUTDATED! The instructions below only apply to kernel version setenv bootargs mxcfb0:dev=hdmi,1280x720M@60,if=RGB24 U-Boot> saveenv U-Boot> run bootcmd Windows CE Windows Embedded Compact 7 from Adeneo contains two support for HDMI and the Freescale LVDS1 panel in the form of two separate O/S images ( NK*.bin). QNX At the time of this writing, only the 7″ Parallel RGB display is supported in QNX. Known issues There is a known bug in the HDMI driver which causes display corruption if an HDMI monitor is either disconnected and reconnected or powered down and back up during operation. A customer just reminded me of an outstanding bug related to Ubuntu releases and the 7″ display. It appears that something in the startup of X decides to re-configure the display and in the process, bit 17 of the IPU1_DI0_GENERAL register gets cleared to zero. This bit defines the pixel clock polarity and this will result in visible artifacts on the display.
Windows CE 6.0 / 500Mhz CPU / 128MB RAM. 1-year limited. 7' digital high definition (800x480) TFT touchscreen display.Built-in. March 19, 2013.
If you see this problem, you can use the ‘devregs’ tool at to verify the symptom and temporarily fix it. Root@linaro-ubuntu-desktop:~# devregs IPU1_DI0_GENERAL IPU1_DI0_GENERAL:0x02640000 =0x00300004 root@linaro-ubuntu-desktop:~# devregs IPU1_DI0_GENERAL 0x00320004 IPU1_DI0_GENERAL:0x02640000 =0x00300004 IPU1_DI0_GENERAL:0x02640000 == 0x00300004.0x00320004 You can read about devregs in this post: And you can get the sources here. Hi Eric, I am trying to install Linux on our custom board similar to the I.MX6Q SabreLite board. I am using linux-imx6-boundary-imx_3.0.35_4.0.0 and linux-imx6-boundary-imx_3.0.35_1.1.1.
On the SabreLite HDMI uses I2C2, and on our custom board HDMI uses I2C3. How to move HDMI from I2C2 to I2C3? I am move I2C_BOARD_INFO(“mxc_hdmi_i2c”, 0x50) from static struct i2c_board_info mxc_i2c1_board_info[] __initdata to static struct i2c_board_info mxc_i2c2_board_info[] __initdata in board_mx6q_sabrelite.c What else it is necessary to make?
(excuse for my bad English). During u-boot loading time I see the image on the monitor, and during Linux operating time – no. I am looking for some video assistance on a custom i.MX6Q board we have in development.
Currently I have HDMI and LVDS displays connected. When I boot our Ubuntu Linux kernel, only the video source which is attached to mxcfb0 displays the GUI. Drunk quest print and play. I can still utilize both displays using gstreamer.
Should I be able to use both displays to extend the Ubuntu GUI? If so is the xorg.conf file used to set this up? Earlier in the boot cycle only the selected display displays the Linux penguins while the other display isn’t even in sync. Once the file system starts to load both displays get in sync. Following is the u-boot environment variables: bootargs=console=ttymxc0,115200 video=mxcfb0:dev=hdmi,1280x720M@60,if=RGB24 video=mxcfb1:dev=ldb,1024x600M@60,if=RGB666 If I switch the fb0 and fb1 variables, then the LVDS display works and the HDMI display does not. Is there something within my custom board files that control which display gets enabled?
How do I get both displays to work during the early boot cycle? I would expect to see penguins on both displays. Thanks is advance.
Hi Paul, Nice dig with the “my iWave board does.” 😉 Penguins are easy though. You’ll just need to unblank /dev/fb2 somewhere in the boot process: # echo 0 > /sys/class/graphics/fb2/blank Note that /dev/fb1 is the YUV overlay associated with /dev/fb0 though. It’s not normally the second display. You can get a more complete picture through this bit of shell-fu to browse the /sys tree: for fb in /sys/class/graphics/fb?; do echo '----------- $fb'; cat $fb/name; cat $fb/mode; cat $fb/fsl_disp_*; done.
New finding on the Dual Screen issue with our iMX6Q custom board. I found the following error in my Xorg.0.log file – Screen 1 deleted because of no matching config section. This would explain why I cannot utilize the second display. Any ideas what is missing? Hi, For some projects we need to adapt several LVDS displays to be supported on a sabreLITE board.
Journal Page for Jul 10, 2014. Feb 16, 2019 / 09:52 pm. So he wears his XBox controller in a holster powering his weight loss garment? Essay writing service - 2019.02.23 Reading is to the mind what exercise is to the body. [url=writing service[/url] https. United States: Charlotte (Nc) Nagaoka, Japan; Cachoeiro De Itapemirim, Brazil; Bissau, Guinea-Bissau; Czestochowa, Poland. Free online heuristic URL scanning and malware detection. Scan websites for malware, exploits and other infections with quttera detection engine to check if the site is safe to browse. Free Online Website Malware Scanner check website for malware and vulnerability exploits online. Remont pusko zaryadnoe ustrojstvo dubna m 62.
We are using JB 4.2.2-1.1.0 from the bouldary repository. I found a 640×480 TFT (AUO G104VN01) and an appropriate connector and after changing the 6x_bootscript_jb.txt I could see a good picture on the display. But it seems that the Android desktop is 800 pixel width. I only can see 2/3 of the Android desktop.
Strange is that dm.widthPixels gives 640. Is the minimum Android desktop widt 800? As we are running an own compiled Android it is possible for us to do changes. Where and how does Android set the the desktop width? Many thanks, MichaelG. Hi Michael, The short answer is “No”.