<?xml version="1.0"?>
<rss version="2.0"><channel><title>Khadas VIM4 Latest Topics</title><link>https://testforum.armbian.com/forum/100-khadas-vim4/</link><description>Khadas VIM4 Latest Topics</description><language>en</language><item><title>VIM4 IoT image does not boot</title><link>https://testforum.armbian.com/topic/55371-vim4-iot-image-does-not-boot/</link><description><![CDATA[<p>
	The <a href="https://dl.armbian.com/khadas-vim4/archive/Armbian_25.5.1_Khadas-vim4_noble_legacy_5.15.137_minimal.oowow.img.xz" rel="external nofollow">latest Armbian IoT image for Khadas VIM4</a> does not boot. <br />
	sha256sum: 69b10797369fd572d590aeb0dd7b28a4ebc5882cec8db8daf592db7b158bf141
</p>

<p>
	<br />
	Here is the log from the serial debug console.
</p>

<p>
	 
</p>

<div class="ipsSpoiler" data-ipsspoiler="">
	<div class="ipsSpoiler_header">
		<span>Spoiler</span>
	</div>

	<div class="ipsSpoiler_contents">
		<p>
			[...]
		</p>

		<p>
			Hit any key to stop autoboot:  0<br />
			Setting bus to 6<br />
			_find_partition_by_name()-200: do not find match in table boot<br />
			_find_partition_by_name()-200: do not find match in table boot<br />
			error partition name!<br />
			4096 bytes read in 1 ms (3.9 MiB/s)<br />
			_find_partition_by_name()-200: do not find match in table boot<br />
			_find_partition_by_name()-200: do not find match in table boot<br />
			error partition name!<br />
			4194304 bytes read in 2 ms (2 GiB/s)<br />
			avb2: 1<br />
			active_slot is normal<br />
			ab_suffix is<br />
			_find_partition_by_name()-200: do not find match in table vbmeta<br />
			_find_partition_by_name()-200: do not find match in table vbmeta<br />
			get partition info failed !!<br />
			_find_partition_by_name()-200: do not find match in table vbmeta<br />
			_find_partition_by_name()-200: do not find match in table vbmeta<br />
			error partition name!<br />
			Failed to read 65536B from part[vbmeta] at 0<br />
			avb_slot_verify.c:721: ERROR: vbmeta: Error loading vbmeta data.<br />
			avb verification: locked = 1, result = 2<br />
			try upgrade as booting failure<br />
			PHY2=00000000fe03a020,phy-base=0xfe03e000<br />
			noSof<br />
			Device: <abbr title="embedded MultiMediaCard"><abbr title="embedded MultiMediaCard">emmc</abbr></abbr><br />
			Manufacturer ID: 15<br />
			OEM: 100<br />
			Name: BJTD4<br />
			Bus Speed: 192000000<br />
			Mode : HS200 (200MHz)<br />
			Rd Block Len: 512<br />
			MMC version 5.1<br />
			High Capacity: Yes<br />
			Capacity: 29.1 GiB<br />
			Bus Width: 8-bit<br />
			Erase Group Size: 512 KiB<br />
			HC WP Group Size: 8 MiB<br />
			User Capacity: 29.1 GiB WRREL<br />
			Boot Capacity: 4 MiB ENH<br />
			RPMB Capacity: 4 MiB ENH<br />
			card in<br />
			** Unrecognized filesystem type **<br />
			** Unrecognized filesystem type **<br />
			starting USB...<br />
			USB0:   Register 1000120 NbrPorts 1<br />
			Starting the controller<br />
			USB XHCI 1.10<br />
			USB1:   No ----<abbr title="General purpose input/output"><abbr title="General purpose input/output">gpio</abbr></abbr>-vbus-power<br />
			Register 2000120 NbrPorts 1<br />
			Starting the controller<br />
			USB XHCI 1.10<br />
			scanning bus 0 for devices... 1 USB Device(s) found<br />
			scanning bus 1 for devices... 2 USB Device(s) found<br />
			       scanning usb for storage devices... 0 Storage Device(s) found<br />
			active_slot: normal<br />
			_find_partition_by_name()-200: do not find match in table recovery<br />
			_find_partition_by_name()-200: do not find match in table recovery<br />
			error partition name!<br />
			Err imgread(L199):Fail to read 0x2000B from part[recovery] at offset 0<br />
			Err imgread(L466):Fail read <abbr title="Device tree blob"><abbr title="Device tree blob">dtb</abbr></abbr> from recovery, ret 200<br />
			restore <abbr title="Device tree blob"><abbr title="Device tree blob">dtb</abbr></abbr><br />
			the <abbr title="Device tree blob"><abbr title="Device tree blob">dtb</abbr></abbr> partition size is:40000   byte<br />
			_verify_dtb_checksum()-2815: calc 0, store 0<br />
			update_dtb_info()-2923: cpy 1 is not valid<br />
			_verify_dtb_checksum()-2815: calc 0, store 0<br />
			update_dtb_info()-2923: cpy 0 is not valid<br />
			dtb_read()-3030: total valid 0<br />
			Err imgread(L339):Fail read <abbr title="Device tree blob"><abbr title="Device tree blob">dtb</abbr></abbr> from rsv with sz 0x40000<br />
			Err imgread(L466):Fail read <abbr title="Device tree blob"><abbr title="Device tree blob">dtb</abbr></abbr> from _aml_dtb, ret -340<br />
			[imgread]read from part: recovery<br />
			_find_partition_by_name()-200: do not find match in table recovery<br />
			_find_partition_by_name()-200: do not find match in table recovery<br />
			error partition name!<br />
			Err imgread(L545):Fail to read 0x100000B from part[recovery] at offset 0<br />
			kvim4# <br />
			 
		</p>
	</div>
</div>

<p>
	 
</p>
]]></description><guid isPermaLink="false">55371</guid><pubDate>Tue, 30 Sep 2025 23:48:08 +0000</pubDate></item><item><title>armbian desktop not working</title><link>https://testforum.armbian.com/topic/33181-armbian-desktop-not-working/</link><description><![CDATA[<p>
	I have a brand new VIM4 NPU bare board in fanless aluminum case with power supply and Khadas cable.<br />
	Khadas Ubuntu versions with gnome desktop work perfectly without any slowdown in both <abbr title="embedded MultiMediaCard">emmc</abbr> and sd version but armbian desktops do not work!<br />
	Only xfce (via oowow or latest armbian.com version) launches after several minutes but then presents slowdowns.<br />
	All versions with cinnamon (oblique lines) and gnome (armbian logo) freeze after launching the desktop environment whether with an installation on <abbr title="embedded MultiMediaCard">emmc</abbr> sd or usb…<br />
	No problems with server versions, only desktop versions…<br />
	I wonder if it is the fact of not having a fan and/or the NPU chip that makes the Armbian desktops incompatible?
</p>
]]></description><guid isPermaLink="false">33181</guid><pubDate>Sat, 13 Jan 2024 06:32:06 +0000</pubDate></item><item><title>Khadas Vim4</title><link>https://testforum.armbian.com/topic/20272-khadas-vim4/</link><description><![CDATA[<p>
	Samples arrived <span class="ipsEmoji">♥️</span> HW looks fascinating, Armbian is yet to be ported so can't comment how good this is in realworld. Its shipped with stock Khadas Ubuntu, kernel 5.4.y, which is good to boot something ...
</p>

<p>
	 
</p>

<p>
	<a href="https://www.cnx-software.com/2021/10/21/khadas-vim4-amlogic-a311d2-sbc/" rel="external nofollow">Technical specs</a> at CNX.
</p>

<p>
	<a class="ipsAttachLink ipsAttachLink_image" data-fileext="jpeg" data-fileid="8873" href="https://testforum.armbian.com/uploads/monthly_2022_04/P1220333.jpeg.dbb6e963e1be2a8f30e2abee8993f9f6.jpeg" rel=""><img alt="P1220333.jpeg" class="ipsImage ipsImage_thumbnailed" data-fileid="8873" width="1000" src="https://testforum.armbian.com/uploads/monthly_2022_04/P1220333.thumb.jpeg.cc6618f54b8ab2131a881476184f2072.jpeg" loading="lazy" height="560"></a>
</p>

<p>
	<a class="ipsAttachLink ipsAttachLink_image" data-fileext="jpeg" data-fileid="8874" href="https://testforum.armbian.com/uploads/monthly_2022_04/P1220341.jpeg.47d5c0a44fa2d8cece3379050fac0577.jpeg" rel=""><img alt="P1220341.jpeg" class="ipsImage ipsImage_thumbnailed" data-fileid="8874" width="1000" src="https://testforum.armbian.com/uploads/monthly_2022_04/P1220341.thumb.jpeg.02abed78c82da65dbf8d9e9cc406a2c8.jpeg" loading="lazy" height="560"></a>
</p>

<p>
	<a class="ipsAttachLink ipsAttachLink_image" data-fileext="jpeg" data-fileid="8875" href="https://testforum.armbian.com/uploads/monthly_2022_04/P1220328.jpeg.219a3571b2f82853ac1105c2462a97e3.jpeg" rel=""><img alt="P1220328.jpeg" class="ipsImage ipsImage_thumbnailed" data-fileid="8875" width="1000" src="https://testforum.armbian.com/uploads/monthly_2022_04/P1220328.thumb.jpeg.d49f6023b9474da7ad340975ac22d1f1.jpeg" loading="lazy" height="560"></a>
</p>

<p>
	<a class="ipsAttachLink ipsAttachLink_image" data-fileext="jpeg" data-fileid="8876" href="https://testforum.armbian.com/uploads/monthly_2022_04/P1220320.jpeg.764edb28286d0a25ee2b9cd337f7e012.jpeg" rel=""><img alt="P1220320.jpeg" class="ipsImage ipsImage_thumbnailed" data-fileid="8876" width="1000" src="https://testforum.armbian.com/uploads/monthly_2022_04/P1220320.thumb.jpeg.4d5fb2911aea346aa0a99d6a1752e684.jpeg" loading="lazy" height="560"></a>
</p>
]]></description><guid isPermaLink="false">20272</guid><pubDate>Fri, 15 Apr 2022 09:31:33 +0000</pubDate></item><item><title>Install to vim4</title><link>https://testforum.armbian.com/topic/40794-install-to-vim4/</link><description><![CDATA[<p>
	I am wondering how to install this. 
</p>

<p>
	I've installed armbian on a nanopc, and edge V which is now a brick after a brief use as an armbian machine. 
</p>

<p>
	 
</p>

<p>
	But never successfully to a vim 3. I have a fresh out of the box vim3 that fails on boot with the current image on sdcard. 
</p>

<p>
	 
</p>

<p>
	The first vim4 was a doorstop on arrival. 
</p>

<p>
	 
</p>

<p>
	I finally have a second vim 4 that does seem to work if I push the function button 3 times it<span> goes to oowow.  But so far nothing that I've read works to boot from sdcard. </span>
</p>

<p>
	 
</p>

<p>
	"Holding the function button while power on." 
</p>

<p>
	 
</p>

<p>
	I havent found any instructions here about an install process other than insert the sdcard and power on, which does absolutely nothing. 
</p>

<p>
	 
</p>

<p>
	I have the latest cli image on sdcard. 
</p>

<p>
	 
</p>

<p>
	Also, I take it that vim4 only supports legacy? 
</p>

<p>
	 
</p>

<p>
	Any help is greatly appreciated 
</p>

<p>
	 
</p>

<p>
	 
</p>
]]></description><guid isPermaLink="false">40794</guid><pubDate>Thu, 06 Jun 2024 18:51:41 +0000</pubDate></item><item><title>Vim4 and ts1050 lcd?</title><link>https://testforum.armbian.com/topic/33142-vim4-and-ts1050-lcd/</link><description><![CDATA[<p>
	I am wondering if the ts1050 or <span>some other embedded screen is working with the vim4 at this time? </span><span> </span>
</p>

<p>
	 
</p>

<p>
	 
</p>
]]></description><guid isPermaLink="false">33142</guid><pubDate>Tue, 09 Jan 2024 17:49:35 +0000</pubDate></item><item><title>Performance of VIM4 vs Amlogic S905x</title><link>https://testforum.armbian.com/topic/23930-performance-of-vim4-vs-amlogic-s905x/</link><description><![CDATA[<p>
	Hi everybody, 
</p>

<p>
	 
</p>

<p>
	I just got a hand on a generic tv box powered by 4 cores S905x. 
</p>

<p>
	 
</p>

<p>
	Performance from this tv box is not satisfied for me. 
</p>

<p>
	 
</p>

<p>
	So I am thinking about this VIM4. 
</p>

<p>
	 
</p>

<p>
	Can anyone please tell me how is single core and multi cores cpu performance on VIM4 vs S905x? How much faster is it? 
</p>
]]></description><guid isPermaLink="false">23930</guid><pubDate>Wed, 12 Oct 2022 16:07:16 +0000</pubDate></item><item><title>Bullseye for Khadas VIM4?</title><link>https://testforum.armbian.com/topic/20866-bullseye-for-khadas-vim4/</link><description><![CDATA[<p>
	I prefer Debian to Ubuntu.  Is there a possibility the VIM3 version will run on the VIM4 (doubtful)?  
</p>

<p>
	Is anyone currently working of Debian Bulleye support for the VIM4, or interested in befinning a port?
</p>

<p>
	 
</p>

<p>
	Larry
</p>
]]></description><guid isPermaLink="false">20866</guid><pubDate>Sat, 14 May 2022 03:52:37 +0000</pubDate></item><item><title>Video : Khadas VIM4 Linux review - A next gen ARM SBC</title><link>https://testforum.armbian.com/topic/20638-video-khadas-vim4-linux-review-a-next-gen-arm-sbc/</link><description><![CDATA[<p>
	Hello everybody.<br>
	<br>
	Today the Khadas VIM4 is being released.<br>
	The VIM4 uses the Amlogic A311D2 <abbr title="System On a Chip"><abbr title="System On a Chip">SoC</abbr></abbr>. This is a new <abbr title="System On a Chip"><abbr title="System On a Chip">SoC</abbr></abbr> with 8-cores of which 4 x A53 @ 2Ghz + 4 x A73 @ 2.2Ghz.<br>
	The board comes with 8GB LPDDR4X and an <abbr title="embedded MultiMediaCard"><abbr title="embedded MultiMediaCard">eMMC</abbr></abbr> of 32GB.<br>
	If you want to learn more about this new board, then watch my review video about it here.
</p>

<div class="ipsEmbeddedVideo">
	<div>
		<iframe allowfullscreen="" frameborder="0" height="113" src="https://www.youtube-nocookie.com/embed/4ea90B6vUFs?feature=oembed" width="200" loading="lazy"></iframe>
	</div>
</div>

<p>
	Greetings, NicoD
</p>
]]></description><guid isPermaLink="false">20638</guid><pubDate>Fri, 06 May 2022 18:54:38 +0000</pubDate></item></channel></rss>
