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SageTV Media Extender Discussion related to any SageTV Media Extender used directly by SageTV. Questions, issues, problems, suggestions, etc. relating to a SageTV supported media extender should be posted here. Use the SageTV HD Theater - Media Player forum for issues related to using an HD Theater while not connected to a SageTV server.

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  #41  
Old 09-22-2010, 06:38 PM
civerson4 civerson4 is offline
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Quote:
Originally Posted by cat6man View Post
try the new beta
Did not solve the problem for me.

On another note, I know very little about networking, but why would I be able to stream uncompressed blu rays with HD Audio flawlessly but not be able to stream DVD's if it was a network issue? Blu Rays are 5-8x larger files--and certainly more network bandwith is required to stream these files. Same with Full res HD TV shows. Just doesn't make sense to this networking neophyte
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  #42  
Old 09-23-2010, 06:43 AM
drewg drewg is offline
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Quote:
Originally Posted by civerson4 View Post
Did not solve the problem for me.

On another note, I know very little about networking, but why would I be able to stream uncompressed blu rays with HD Audio flawlessly but not be able to stream DVD's if it was a network issue? Blu Rays are 5-8x larger files--and certainly more network bandwith is required to stream these files. Same with Full res HD TV shows. Just doesn't make sense to this networking neophyte
It doesn't make sense to me that the network would be the problem for DVDs and not BD or HD TV shows. For me, I had the opposite problem. DVDs & SD TV were fine, HD TV was mostly OK, but with some hiccups when skipping around in the show (comskip, etc), and BDs were stuttery. Eg, the higher the bandwidth requirement, the worse the problem was.

Drew
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  #43  
Old 09-23-2010, 06:54 AM
drewg drewg is offline
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Quote:
Originally Posted by crarbo1 View Post
Before I disable it though, what is the impact to my WHS if I disable it. Is their any downside to disabling flow control?
The goal of F/C is to prevent packet drops due to buffer overruns.

I do 10GbE drivers for a living, and at the really high end ($$$ managed 10GbE switches), flow control is really helpful. It is generally implemented correctly, and it helps keep traffic flowing at the maximum rate possible for the path it is taking. It is a "stop/go" protocol. The idea is that a device will tell its link partner to "stop" when its receive buffer hits a low water mark, and will tell its link partner to "go" when its receive buffer hits a high water mark (actually, a pause packet also has a timeout, so no "go" packet is technically required).
I've seen enabling flow control take performance going from a 10GbE server to a 1GbE client from ~10-15Mb/s to 940Mb/s.

On the consumer side, I've been less impressed. In my case, enabling f/w cuts by bandwidth by 60% to 70% when talking from my 1GbE server to the 100Mb/s HD300. I think that either the switch is not sending "go" packets, or the NIC is not reacting quickly enough to them, so the server's NIC stays paused for too long.

Before this week, I'd never have suggested disabling flow control. But I think f/c is hit or miss on consumer equipment, so I'd suggested trying to disable it.

The thing I don't understand is how the HD300 factors into your DVD problems. The server should be reading the DVDs from your WHS, and then sending the stream to the HD300. Before you mess with your WHS, try copying a DVD to your server, and playing it from there.

DRew
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  #44  
Old 09-23-2010, 04:41 PM
crarbo1 crarbo1 is offline
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Quote:
Originally Posted by drewg View Post
The goal of F/C is to prevent packet drops due to buffer overruns.

I do 10GbE drivers for a living, and at the really high end ($$$ managed 10GbE switches), flow control is really helpful. It is generally implemented correctly, and it helps keep traffic flowing at the maximum rate possible for the path it is taking. It is a "stop/go" protocol. The idea is that a device will tell its link partner to "stop" when its receive buffer hits a low water mark, and will tell its link partner to "go" when its receive buffer hits a high water mark (actually, a pause packet also has a timeout, so no "go" packet is technically required).
I've seen enabling flow control take performance going from a 10GbE server to a 1GbE client from ~10-15Mb/s to 940Mb/s.

On the consumer side, I've been less impressed. In my case, enabling f/w cuts by bandwidth by 60% to 70% when talking from my 1GbE server to the 100Mb/s HD300. I think that either the switch is not sending "go" packets, or the NIC is not reacting quickly enough to them, so the server's NIC stays paused for too long.

Before this week, I'd never have suggested disabling flow control. But I think f/c is hit or miss on consumer equipment, so I'd suggested trying to disable it.

The thing I don't understand is how the HD300 factors into your DVD problems. The server should be reading the DVDs from your WHS, and then sending the stream to the HD300. Before you mess with your WHS, try copying a DVD to your server, and playing it from there.

DRew
Drew,
Thanks for the information. Very helpful. It seems there is not a negative in doing this so I will try it to see my results.
My SageTV server is headless, as is my WHS server. The way I think my setup works is the HD300 is getting the DVD's streamed to it from the WHS server through SageTV server. So there is two connections that could be the culprit. The one from the SageTV server to the WHS server where the DVD rips reside and from the SageTV server to the HD300. I checked on my SageTV server and flow control is already disabled but on my WHS server, it was enabled, so maybe this will help. Worth a try anyway.

Thanks,
Chuck
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  #45  
Old 09-24-2010, 08:42 AM
civerson4 civerson4 is offline
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Update: Installed beta 7.0.17 this morning. The issue playing DVD's on the HD 300 persists for me. Both with the HD 300 beta and current release firmware.
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  #46  
Old 09-25-2010, 07:33 PM
rxnelson rxnelson is offline
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I didn't have the issue with DVDs (I have no menus) but I did have it with bluray. HD on TV was flawless which led me to think bandwidth. I think it was choking the switch. It would only occur when I had the server and HD300 connected via the same switch. This did not occur when I was testing the client PC with a gigabit card. I enabled (was disabled by default) flow control on the server (nvidia onboard LAN) and initial testing seems to have resolved the problem. I haven't watched a whole movie yet but it isn't pausing and stuttering every 20 seconds now either. Thanks for leading me in that direction.
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  #47  
Old 09-25-2010, 07:38 PM
madpoet madpoet is offline
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I'm having a lot of problems with it freezing on the menu for full DVD ISOs. Just hangs at the FBI warning and I get the circle of death if I hit any buttons. Way too frequently for me to be happy
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  #48  
Old 09-25-2010, 08:18 PM
Rezolution Rezolution is offline
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Quote:
Originally Posted by madpoet View Post
I'm having a lot of problems with it freezing on the menu for full DVD ISOs. Just hangs at the FBI warning and I get the circle of death if I hit any buttons. Way too frequently for me to be happy
I've been running an HD200 for about a year and have had no problems at all with DVDs. My son watches the same 5 or 6 DVDs over and over every single day.

I switched him over to an HD300 and the DVDs have been freezing up when the Menu starts up on them. Sometimes I can press stop and it will back out of the freeze up. Sometimes it freezes up and reboots itself.

I just updated to the latest beta firmware on the HD300 (I'm not upgrading my Sage TV server for this issue) and the problem seems to have been fixed. I'll check it again tomorrow after all my drives are in sleep mode.

If it's fixed permanently, no more updates for me LoL.

I've not hand any problems with any other files on the HD300 (hdhomerun recordings, blu-ray, mkv, etc), just DVDs ripped to Audio/Video folder structures (Menu freeze issues, not stuttering or playback issues).
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  #49  
Old 09-25-2010, 08:22 PM
Rezolution Rezolution is offline
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Quote:
Originally Posted by madpoet View Post
I'm having a lot of problems with it freezing on the menu for full DVD ISOs. Just hangs at the FBI warning and I get the circle of death if I hit any buttons. Way too frequently for me to be happy
madpoet, have you tried updating your HD300 to 20100921-0 ?

That seems to have fixed my problems with DVD menu freezing (although I dont use the ISO format, I use folder structure rips).
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  #50  
Old 09-26-2010, 10:58 AM
madpoet madpoet is offline
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Yep, that is what I am running. Still getting a lot of lockups.
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  #51  
Old 09-30-2010, 07:42 PM
civerson4 civerson4 is offline
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UPDATE: PROBLEM SOLVED (at least for me).

Problem: Stuttering playback on DVD's ripped (full rip with menus). Blu rays/HDTV streamed flawlessly.

Solution: Disabled Jumbo packets on NAS and Sage Server NIC's. Disabled flow control (previously enabled).

Thank you Sage Support

Last edited by civerson4; 10-01-2010 at 06:04 PM.
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  #52  
Old 10-14-2010, 07:45 AM
Rezolution Rezolution is offline
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I tried disabling flow control on my NIC because of all the posts I read about it just to see what would happen. Disabling flow control on my media server NIC actually causes stuttering on my HD200 (goes away as soon as I re enable it). The HD300 doesn't seem to care either way.
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