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Title: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 26, 2013, 12:41:55 PM Hello,
today arrived second USB Block Erupter, so i connected it to my Debian linux server. But its slower than mining with only one ! Here is output: Code: cgminer version 3.3.4 - Started: [2013-08-26 14:22:38] I tried it on Windows computer with BitMinter client and it works normally at speed of 655Mh/s :( P.S. I am using powered USB HUB, because Windows computer canīt handle 2 Block Erupters Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: -ck on August 26, 2013, 01:14:12 PM Upgrade to latest version of cgminer and reboot to make sure it uses the included DLL for the usb library. Older DLLs had this problem.
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 26, 2013, 04:43:03 PM I upgraded to latest version. But nothing changed :(
Here output: Code: cgminer version 3.4.0 - Started: [2013-08-26 18:40:26] Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: SirMintALot on August 26, 2013, 05:12:13 PM maybe its a bit underpowered? I had a similar problem when I connected two Block Erupters to a 5-port USB hub with cardreader that only has a 1000mA PSU.
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 26, 2013, 05:37:49 PM maybe its a bit underpowered? I had a similar problem when I connected two Block Erupters to a 5-port USB hub with cardreader that only has a 1000mA PSU. I think not, because Windows computer works fine with BitMinter client and powered hub, but here are specifiations of my hub: Power supply 5 W Input voltage 100 - 240 V Output voltage 5 V Input frequency 50 / 60 Hz Output current 1 A //definetely not. Now i tried with one Block Erupter connected to HUB and one connected directly to computer, and effect was same, so i am sure there isnīt problem with power Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: -ck on August 26, 2013, 09:08:15 PM Make sure there isn't another libusb-1.0.dll somewhere on your system?
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 27, 2013, 07:45:10 AM Make sure there isn't another libusb-1.0.dll somewhere on your system? Aah maybe this was problem. I will check it P.S. i installed CGMiner with this tutorial: http://blog.phrog.org/2013/07/06/simple-debian-cgminer-asicminer-block-erupter-usb-setup/ //I uninstalled all packages via apt-get remove (including libusb.dll 1.00) but effect was same (i rebooted too) Output was same, but here is output with hotplug: Code: cgminer version 3.4.0 - Started: [2013-08-27 09:42:24] Pls guys help me, everyday i am loosing profit from second Block Erupter :((( Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: -ck on August 27, 2013, 07:50:35 AM Make sure there isn't another libusb-1.0.dll somewhere on your system? Aah maybe this was problem. I will check it P.S. i installed CGMiner with this tutorial: http://blog.phrog.org/2013/07/06/simple-debian-cgminer-asicminer-block-erupter-usb-setup/ //I uninstalled all packages via apt-get remove (including libusb.dll 1.00) but effect was same (i rebooted too) Grab Kano's binary which has the other libusb built in statically. The problem is the old libusb is broken on both linux and windows. Here. I even went to the trouble of finding the relevant post: https://bitcointalk.org/index.php?topic=28402.msg2983720#msg2983720 Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: HellDiverUK on August 27, 2013, 08:05:24 AM maybe its a bit underpowered? I had a similar problem when I connected two Block Erupters to a 5-port USB hub with cardreader that only has a 1000mA PSU. I think not, Output voltage 5 V Output current 1 A 500mA + 500mA = 1A. Not counting the hub's overhead, so your hub's PSU is underpowered. Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 27, 2013, 08:18:06 AM Quote 500mA + 500mA = 1A. Not counting the hub's overhead, so your hub's PSU is underpowered. Quote //definetely not. Now i tried with one Block Erupter connected to HUB and one connected directly to computer, and effect was same, so i am sure there isnīt problem with power Sry i am little noob at linux. There isnīt download for Debian. And i donīt know what to do with *.a file :( Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: -ck on August 27, 2013, 11:23:06 AM Quote 500mA + 500mA = 1A. Not counting the hub's overhead, so your hub's PSU is underpowered. Quote //definetely not. Now i tried with one Block Erupter connected to HUB and one connected directly to computer, and effect was same, so i am sure there isnīt problem with power Sry i am little noob at linux. There isnīt download for Debian. And i donīt know what to do with *.a file :( Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 27, 2013, 11:32:22 AM as i said, i donīt know how to compile it/use it :(( I donīt know what i need to do with *.a file. Can you send me tutorial for it?
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: HellDiverUK on August 27, 2013, 02:44:05 PM Quote 500mA + 500mA = 1A. Not counting the hub's overhead, so your hub's PSU is underpowered. Quote //definetely not. Now i tried with one Block Erupter connected to HUB and one connected directly to computer, and effect was same, so i am sure there isnīt problem with power I'm sure it is, but hey, whatever. Knock yourself out chasing your tail. Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: Winterfrost on August 27, 2013, 02:56:14 PM as i said, i donīt know how to compile it/use it :(( I donīt know what i need to do with *.a file. Can you send me tutorial for it? It's actually a binary file, the "a" is just part of the version number. No compiling necessary. Open a terminal and type in these two commands: Code: wget https://github.com/kanoi/cgminer-binaries/raw/master/Ubuntu_11.04_x86_64/cgminer-3.4.0a Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 27, 2013, 03:50:01 PM not working for me it says:
-bash: ./cgminer: binary file cannot be executed i replace old cgminer file :(( Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: SirMintALot on August 27, 2013, 04:10:29 PM Quote 500mA + 500mA = 1A. Not counting the hub's overhead, so your hub's PSU is underpowered. Quote //definetely not. Now i tried with one Block Erupter connected to HUB and one connected directly to computer, and effect was same, so i am sure there isnīt problem with power I'm sure it is, but hey, whatever. Knock yourself out chasing your tail. Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 27, 2013, 04:21:57 PM But why one Block Erupter works (connected DIRECTLY to computer-USB2.0) fine on 336MH/s and second, connected on powered HUB doesnīt work?
//btw my last message was: not working for me it says: -bash: ./cgminer: binary file cannot be executed i replace old cgminer file Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: SirMintALot on August 27, 2013, 05:34:31 PM But why one Block Erupter works (connected DIRECTLY to computer-USB2.0) fine on 336MH/s and second, connected on powered HUB doesnīt work? They might work with not enough curent, but the they are runnng slower thann 336 MH/s. Maybe somethings there is wrong with your hub?//btw my last message was: change rights with chmod. start bash and then go to the directory that contains cgminer. Then do not working for me it says: -bash: ./cgminer: binary file cannot be executed i replace old cgminer file Code: sudo chmod 777 ./cgminer Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: -ck on August 27, 2013, 08:50:27 PM Maybe he's running 32 bit debian. That binary is for 64bit ubuntu...
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 27, 2013, 08:54:35 PM Guys i installed BFGMiner and it doesnīt say nothing about timeouts and speed is 600Mh/s. But still i want solve that problem with CGMiner. So what binary i need?
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: -ck on August 28, 2013, 01:43:21 AM But still i want solve that problem with CGMiner. So what binary i need? Your problem is you have chosen a distribution that does not have an up to date libusb which cgminer depends on, and none of the binaries are made for your distribution. Even if you build cgminer yourself, the problem will remain there due to the library for usb included with debian. Your choices are to install a better libusb by building it yourself at the same time as building cgminer, or downloading one from somewhere (no there is none available for your distribution as far as I'm aware) or changing distribution. The only binaries that have libusb built in statically (included in the binary instead of using the system one) are the ones provided in that link I gave you earlier.We did not anticipate running into such a libusb bug. For windows we included a good dll. That's not how things work on linux. We are considering including a "good" libusb built in statically on later versions of cgminer. Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: taxik on August 28, 2013, 08:19:51 AM OK i will be waiting for next version of CGMiner then :)
Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: vesperwillow on August 30, 2013, 04:00:59 AM maybe its a bit underpowered? I had a similar problem when I connected two Block Erupters to a 5-port USB hub with cardreader that only has a 1000mA PSU. I think not, Output voltage 5 V Output current 1 A 500mA + 500mA = 1A. Not counting the hub's overhead, so your hub's PSU is underpowered. You're forgetting the port is powered, and all of the current is summed together. 500 + 500 + 500 = 1.5A. He wasn't underpowered. Title: Re: Low speed at two Block Erupters (CGMiner) :( Post by: zamot on September 29, 2013, 04:52:55 PM Hello,
i have the same problem with my Eruptors. I get Timeout messages for all of them. Till today i used cgminer 3.3.0 and there was no problem, when i tryed 3.4.0 and now currently 3.5.0 version there is present this error. I run cgminer in Windows XP SP2. Zadig drivers are installed ( otherwise i couldn't run cgminer 3.3.0 ). USB HUB have 3.5A max utput, so there is no underpower problem. I also rebooted XP before i started cgminer 3.5.0. How can i eliminate this timeout problem? Here is the command for starting of cgminer: cgminer-nogpu.exe -c cgminer.conf --no-submit-stale And this is the content of cgminer.conf: Code: { |