January 3, 20188 yr I'm on z370 with a i7 8700 and am trying to get intel quicksync hardware acceleration working within plex. I have followed both: https://lime-technology.com/forums/topic/40463-support-linuxserverio-plex-media-server/?do=findComment&comment=544290 and https://lime-technology.com/forums/topic/40463-support-linuxserverio-plex-media-server/?do=findComment&comment=543984 but I cannot get it to work since /dev/dri is not available on my unRAID server. I have made sure I have the iGPU enabled and set explicitly in my bios. root@unRAID:/dev# modprobe i915 root@unRAID:/dev# lsmod | grep i915 i915 1118208 0 iosf_mbi 16384 1 i915 i2c_algo_bit 16384 1 i915 drm_kms_helper 122880 1 i915 drm 294912 2 i915,drm_kms_helper intel_gtt 20480 1 i915 i2c_core 36864 5 i2c_algo_bit,i2c_i801,i915,drm_kms_helper,drm video 36864 1 i915 backlight 16384 2 video,i915 button 16384 1 i915 root@unRAID:/dev# modprobe i915 root@unRAID:/dev# lsmod | grep i915 i915 1118208 0 iosf_mbi 16384 1 i915 i2c_algo_bit 16384 1 i915 drm_kms_helper 122880 1 i915 drm 294912 2 i915,drm_kms_helper intel_gtt 20480 1 i915 i2c_core 36864 5 i2c_algo_bit,i2c_i801,i915,drm_kms_helper,drm video 36864 1 i915 backlight 16384 2 video,i915 button 16384 1 i915 root@unRAID:/dev# chmod -R 777 /dev/dri chmod: cannot access '/dev/dri': No such file or directory I'm not sure if this is at all related, but I noticed some kind of blacklist in /etc/modprobe.d, but I am not familiar with how this works. root@unRAID:/etc/modprobe.d# ls /etc/modprobe.d/ README blacklist-i915.conf iommu_unsafe_interrupts.conf kvm.conf scsi-sata-controllers.conf Any ideas? I have attached my diagnostics. Wondering if this is caused by my BIOS version, coffee lake, or z370. unraid-diagnostics-20180103-0123.zip Edited January 9, 20188 yr by ack389 Solved
January 5, 20188 yr Author I just found this: https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.15-CFL-No-Alpha. I also upgraded to the unRAID RC to see if it would work with i915, no luck. Anyone else have coffeelake z370? I've been searching on google and cannot find anything specific to unRAID and coffee lake iGPU transcoding.
January 9, 20188 yr Author I was able to get this working by adding the the kernel parameter i915.alpha_support=1. You can get this to work as well by editing syslinux.cfg as explained here: https://lime-technology.com/wiki/Boot_Codes Thanks for the help everyone, great community here!
January 28, 20188 yr Was in the process of setting this up... Had the same issue and this solved it for me. Thanks!
January 28, 20188 yr Author Glad to help, QuickShot! I was surprised nobody else had run into this issue yet as far as I can tell. I can handle a ton of simultaneous transcoded streams now on my z370 8700.
February 18, 20188 yr Just upgraded to a Coffee Lake i5-8400 and had this same problem. This post solved it for me. Thanks ack389!
April 26, 20188 yr On 1/8/2018 at 8:33 PM, ack389 said: I was able to get this working by adding the the kernel parameter i915.alpha_support=1. You can get this to work as well by editing syslinux.cfg as explained here: https://lime-technology.com/wiki/Boot_Codes Thanks for the help everyone, great community here! Can you post your syslinux.cfg file as an example? I'm looking through the wiki, but I'm not entirely sure where to add it... Should it look like this? label unRAID OS menu default kernel /bzimage i915.alpha_support=1 append initrd=/bzroot I really want to activate HW transcoding for Plex, but I seem to be stuck because it's not seeing the iGPU, for reference, I have ASRock z370 Gaming K6 with i7-8700 Thanks for the help in advance!
April 26, 20188 yr 30 minutes ago, randomninjaatk said: Can you post your syslinux.cfg file as an example? I'm looking through the wiki, but I'm not entirely sure where to add it... Should it look like this? label unRAID OS menu default kernel /bzimage i915.alpha_support=1 append initrd=/bzroot I really want to activate HW transcoding for Plex, but I seem to be stuck because it's not seeing the iGPU, for reference, I have ASRock z370 Gaming K6 with i7-8700 Thanks for the help in advance! NVM, I figured it out For reference, my file looks like this: default menu.c32 menu title Lime Technology, Inc. prompt 0 timeout 50 label unRAID OS menu default kernel /bzimage append initrd=/bzroot i915.alpha_support=1 label unRAID OS GUI Mode kernel /bzimage append initrd=/bzroot,/bzroot-gui label unRAID OS Safe Mode (no plugins, no GUI) kernel /bzimage append initrd=/bzroot unraidsafemode label unRAID OS GUI Safe Mode (no plugins) kernel /bzimage append initrd=/bzroot,/bzroot-gui unraidsafemode label Memtest86+ kernel /memtest
May 27, 20188 yr THANK YOU!!! I've been going through the ringer for 3 hours trying to figure this out before I finally came across this post (finally got the perfect combo of search). Now I can HW transcode!
November 27, 20187 yr Hey randomninjaatk, I have darn near the same setup. Can you confirm which links I need to do, or is all I need to do is add this to my syslinux.cfg? label unRAID OS menu default kernel /bzimage append initrd=/bzroot i915.alpha_support=1 I'll make sure my bios is updated, but wasn't sure on the other links you had were those needed or were they just tries to get yours to work?
December 3, 20187 yr Hello everyone. I Just bought a 9600k and unfortunaly all the settings mentioned above doesn't work for me. "no such directory" on /dev/dri. Is it the CPU that isn't supported yet? It's the same iGPU (UHD630) so i don't see why it shouldn't work
December 3, 20187 yr 24 minutes ago, Teixeira said: Hello everyone. I Just bought a 9600k and unfortunaly all the settings mentioned above doesn't work for me. "no such directory" on /dev/dri. Is it the CPU that isn't supported yet? It's the same iGPU (UHD630) so i don't see why it shouldn't work If you have made all the appropriate entries in Plex docker Extra Parameters, the go file, etc. and you have no /dev/dri directory, my guess is that you have not specified the iGPU as your primary graphics adapter in the BIOS. Even if you have no other GPU, you cannot just have the BIOS primary graphics adapter set to AUTO. That does not work. You must specify the iGPU (it is the 'Onboard' selection in my BIOS) as the Primary Graphics Adapter.
December 4, 20187 yr 13 hours ago, Hoopster said: If you have made all the appropriate entries in Plex docker Extra Parameters, the go file, etc. and you have no /dev/dri directory, my guess is that you have not specified the iGPU as your primary graphics adapter in the BIOS. Even if you have no other GPU, you cannot just have the BIOS primary graphics adapter set to AUTO. That does not work. You must specify the iGPU (it is the 'Onboard' selection in my BIOS) as the Primary Graphics Adapter. Thanks for the quick response. I'm 99% sure i did that but i'll have to check again. Will report back.
December 5, 20187 yr On 12/4/2018 at 12:01 AM, Hoopster said: If you have made all the appropriate entries in Plex docker Extra Parameters, the go file, etc. and you have no /dev/dri directory, my guess is that you have not specified the iGPU as your primary graphics adapter in the BIOS. Even if you have no other GPU, you cannot just have the BIOS primary graphics adapter set to AUTO. That does not work. You must specify the iGPU (it is the 'Onboard' selection in my BIOS) as the Primary Graphics Adapter. On 12/4/2018 at 1:50 PM, Teixeira said: Thanks for the quick response. I'm 99% sure i did that but i'll have to check again. Will report back. So i checked again and the iGPU was selected as primary graphics. Still no /dev/dri My diagnostics are attached. Do you think i can get this working on this chip? steelmountain-diagnostics-20181205-2001.zip
December 10, 20187 yr I just swapped my 3570k with a 9600k and an asus z390 board. Set explicitly to enable onboard video, and have a dummy HDMI plug (I even tried with a monitor attached), and I'm getting the same problem as Teixeira. I set it up no problem on a friend's 8600k/z370, but it's definitely not working for me either. I have the required lines in my go file, and even tried the "i915.alpha_support=1" in syslinux.cfg (though I thought I read somewhere that's no longer required). Output of grep | lsmod i915 is as follows: i915 1245184 0 i2c_algo_bit 16384 1 i915 iosf_mbi 16384 1 i915 drm_kms_helper 126976 1 i915 drm 319488 2 drm_kms_helper,i915 intel_gtt 20480 1 i915 i2c_core 40960 5 drm_kms_helper,i2c_algo_bit,i2c_i801,i915,drm video 40960 1 i915 backlight 16384 2 video,i915 Any thoughts? Additionally, I just noticed on Intel's site that while both the 8600k and 9600k use the 630 graphics, the device id for is different. https://ark.intel.com/products/126685/Intel-Core-i5-8600K-Processor-9M-Cache-up-to-4-30-GHz- lists the 8600k with a device id of 0x3E92 and https://ark.intel.com/products/134896/Intel-Core-i5-9600K-Processor-9M-Cache-up-to-4-60-GHz- lists the 9600k with 0x3E98 Could it be something as simple as unRAID needing to add that 0x3E98 somewhere? Edited December 10, 20187 yr by gabestover added info
December 10, 20187 yr @gabestover Your "Go" file should look like this (the one below is mine): #!/bin/bash #Setup drivers for hardware transcoding in Plex modprobe i915 chmod -R 777 /dev/dri # Start the Management Utility /usr/local/sbin/emhttp & And your plex docker config should have this added under advance settings "Extra Parameters": --device /dev/dri:/dev/dri For reference, here is my system details: Hope that helps some! EDIT: Also, since Unraid 6.5+, you do not need to modify the boot file "/boot/syslinux/syslinux.cfg" that is mentioned above. This was only applicable in the older versions of Unraid that was using an older kernel that did not support Coffeelake iGPU natively.... Edited December 10, 20187 yr by randomninjaatk
December 10, 20187 yr @randomninjaatk I had that all already, thanks. I think it's got to have something to do with either the Z390 chipset, or more likely small changes to the 9600k. As I had mentioned, I had this perfectly set up for a friend of mine on a z370 / 8600k with zero issues, so it's not a configuration issue, unless something needs to be specifically different for the 9th gen Intel processors and/or z390 chipset somehow.
December 11, 20187 yr On 12/3/2018 at 3:31 PM, Teixeira said: Hello everyone. I Just bought a 9600k and unfortunaly all the settings mentioned above doesn't work for me. Some reading on the Internet suggests that full support for i5/7/9 9x00 iGPUs in the i915 drivers will not come until the Linux 4.20 kernel. That is scheduled to be included in unRAID 6.7.0 Edited December 11, 20187 yr by Hoopster
December 19, 20187 yr I have a E3-1245 V6 from Intel. I don't see /dev/dri in unRAID. I'm using the onboard GPU with no monitor attached. Already made sure it was set to iGPU in the BIOS as primary. My motherboard is the E3C236D2I from AsRock. I'm running unRAID v6.6.5. Without /dev/dri there is no point in setting the extra parameter in the Linuxserver.io's Plex docker as far as I know so I didn't do that part (yet). Any ideas?
December 19, 20187 yr 1 hour ago, dnLL said: I have a E3-1245 V6 from Intel. I don't see /dev/dri in unRAID. I'm using the onboard GPU with no monitor attached. Already made sure it was set to iGPU in the BIOS as primary. My motherboard is the E3C236D2I from AsRock. I'm running unRAID v6.6.5. Without /dev/dri there is no point in setting the extra parameter in the Linuxserver.io's Plex docker as far as I know so I didn't do that part (yet). Any ideas? In Chipset Configuration in your BIOS do you have IGFX enabled? It must be enabled on your MB to do QSV video transcoding.
December 20, 20187 yr 2 hours ago, dnLL said: I have a E3-1245 V6 from Intel. I don't see /dev/dri in unRAID. I'm using the onboard GPU with no monitor attached. Already made sure it was set to iGPU in the BIOS as primary. My motherboard is the E3C236D2I from AsRock. I'm running unRAID v6.6.5. Without /dev/dri there is no point in setting the extra parameter in the Linuxserver.io's Plex docker as far as I know so I didn't do that part (yet). Any ideas? Since that motherboard has an on board graphics chip, it may not have the ability to use or expose the CPU graphics. @Hoopster, is your sig current? If so, does your backup rig expose /dev/dri?
December 20, 20187 yr 2 hours ago, jonathanm said: Since that motherboard has an on board graphics chip, it may not have the ability to use or expose the CPU graphics. @Hoopster, is your sig current? If so, does your backup rig expose /dev/dri? Yes, my signature is current and both my servers expose /dev/dri and are capable of hardware transcoding in Plex. The backup server has IPMI and uses the AST2300 graphics chip on the motherboard for video, but, it also has a BIOS setting for enabling the Intel GPU for transcoding purposes. It supports both. That's why I asked if @dnLL had enabled the IGFX option in his BIOS. I don't know if his ASRock board supports both AST and IGPU video, but, mine does.
December 20, 20187 yr 24 minutes ago, Hoopster said: Yes, my signature is current and both my servers expose /dev/dri and are capable of hardware transcoding in Plex. The backup server has IPMI and uses the AST2300 graphics chip on the motherboard for video, but, it also has a BIOS setting for enabling the Intel GPU for transcoding purposes. It supports both. That's why I asked if @dnLL had enabled the IGFX option in his BIOS. I don't know if his ASRock board supports both AST and IGPU video, but, mine does. The board doesn't post when I put it onto onboard VGA rather than PCI Express as default. I just updated to latest BIOS with any success. I can't enable the VGA or set the onboard as the default option over PCIE. I'm forced to clear the CMOS every time I try it. And if I put PCI-Express first with IGFX enabled, I just don't see /dev/dri. Edited December 20, 20187 yr by dnLL
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