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fenguoerbian

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  1. Quality set to auto, on my ios in the same local network, same 4K video I tested in my previous post play 2-3s, freeze 2-3s, play 2-3s, freeze 2-3s.... can't be compared to the performance of SW transcoding
  2. Hi, I've spent several days on this HW transcoding problem with asrock j3455-itx motherboard. I've read all the post of this thread and some other related threads in this forum. Gotta say this might be a general problem with this motherboard. Basically, it's the i915 driver's problem and it can be searched(/dev/dri missing, i915 driver problem) from other linux forums. Finally I kind of found a way to make /dev/dri appear when install DS918+ DSM 6.2 using j3455-itx. Here is my method(But to be knoest, the performance is poor.) 1. My method only work on 1.03a2 + extra.lzma_v0.5(I'm not sure whether the extra.lzma is necessary but I included it when making my usb boot) I tested that my method won't work in 1.04b, maybe because the updated i915 driver as @jun stated. 2. When you modify the grub.cfg, changing the vid/pid/SN/MAC, also add a new arg 'i915.alpha_support=1' in the line 'set comon_args_918 = xxx', so it looks like: set common_args_918='syno_hdd_powerup_seq=1 HddHotplug=0 syno_hw_version=DS918+ vender_format_version=2 console=ttyS0,115200n8 withefi elevator=elevator quiet syno_hdd_detect=0 syno_port_thaw=1 i915.alpha_support=1' Install the system(I never tried migratiion) and then the /dev/dri appears and HW transcoding works fine in video station if you also have real SN/MAC. (But the performance is quite poor. I've a 35 min 4K h264 movie. For offling hw transcoding to medium quality, it says about 3 hours to finish. But SW transcoding saied 1hr to finish....sign...) Another thing: DSM 6.2 seems quite slow than DSM 6.1. When I tried in install DSM 6.2, after the screen said 'find.synology.com', it took 5min for DS assistant to find my nas, and 10 min to finish install the DSM. Then the machine reboot, another 6 min before DS assistant finds the ip of my nas. While for installing DSM 6.1, normally it only took 2 min to finish each step. Besides that, in 6.2, my package center seems different from the others. Because I only got the category 'all' in the left panel, while from the picture I browsed from the internet, there should be categories like 'recommended', 'back up', 'utility'.... Last but not least, shutdown is not working for my 6.2. I have to use the shutdown command in command line to turn off my nas. At first I thought this motherborad would be perfect for dsm 6.2 and ds918+ since its specification is quite close to the genuine one. But now I stayed at DS916+ and DS6.1.7.
  3. These versions of bios is on-line several days ago. But there seems to be some problem with the bios file. My j3455-itx has bios version 1.60. When I use instant flash of the motherboard, the 1.70 doesn't show up while 1.80 shows up. But the website clearly states one should first update the bios to 1.70 if it's original version is older than that before updating to 1.80. So currently i still haven't update my bios. But on the website, it says bios v1.80 updates the TXE FW version to 3.1.50.2222, which is exact my current verion(my bios version is 1.60, which is not listed on the website of asrock).
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