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  • what's included in a typical computer architecture class? [closed]

    - by sq1020
    Does this description fit what's usually included in a computer architecture class? Computer Organization and Assembly Language An introduction to the hardware organization and assembly language of the Intel processor. Topics include memory hierarchy and design- CPU design- pipelining- addressing modes- subroutine linkage- polled input/output- interrupts- high level language interfacing and macros.

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  • Empty tooltips in MATLAB

    - by GriffinPeterson
    I am running MATLAB R2013b. Under Unity, the built-in editor of MATLAB shows empty tooltips, as seen here: http://imgur.com/4VSq6i8 Under xfce the tooltips are showing up just fine. My system: Ubuntu 14.04, Intel i7 4770K. The question has already been posted somewhere else (http://stackoverflow.com/questions/21915939/matlab-code-analyzer-produces-empty-tooltips, http://www.mathworks.com/matlabcentral/answers/116987-empty-tooltips-in-code-analyzer ), but I think this is a Unity-specific problem. Any ideas?

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  • Cannot get Virtualbox to install properly on Ubuntu 12.04

    - by lopac1029
    I cannot get Virtualbox to install properly on my 12.04. I first went with a manual install for the .deb from the old builds section of the Virtualbox page. That .deb opened up the Software Center and installed. Then I got the error coming up of VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot. which I can only assume was due to my Ubuntu version being 32-bit (System Details - Overview - OC type: 32-bit, right?) So I followed these instructions to remove the .deb manually, restarted my laptop, and then FOUND the actual Virtualbox install in the Software Center and installed from that (assuming it would give me the correct version I need for my system) So after all that (and then some), I'm still getting the same error when I connect to my new job's project in Virtualbox. Can anyone point me in the right direction of what to do here? This is the first time I've ever worked with Virtualbox, and no one at this company is using Ubuntu, so I'm on my own here. EDIT: Here is the direct info from running the 2 suggested commands Inspiron-1750-brick:~ $lscpu Architecture: i686 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 1 Core(s) per socket: 2 Socket(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 23 Stepping: 10 CPU MHz: 2100.000 BogoMIPS: 4189.45 L1d cache: 32K L1i cache: 32K L2 cache: 2048K Inspiron-1750-brick:~ $cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU T6500 @ 2.10GHz stepping : 10 microcode : 0xa07 cpu MHz : 1200.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm bogomips : 4189.80 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU T6500 @ 2.10GHz stepping : 10 microcode : 0xa07 cpu MHz : 1200.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm bogomips : 4189.45 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:

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  • NVidia with Optimus conflicting in Ubuntu 12.04

    - by Humannoise
    i have recently installed Ubuntu 12.04 in a Intel Ivy Bridge with integrated graphics and NVidia GPU with Optimus tech, however i cant manage it to work properly. I have already passed by the solution of bumblebee project, however iam got the following message when try to run anything with nvidia card( e.g. with optirun firefox): [ERROR]The Bumblebee daemon has not been started yet or the socket path /var/run/bumblebee.socket was incorrect. [ERROR]Could not connect to bumblebee daemon - is it running? Since the nvidia card is not working properly, some softwares like Scilab, that make use of X11 system for graphic handling and plotting, wont work too. my bios has no option concerning graphics card and the log of daemon returned: Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ bumblebeed[980]: Module 'nvidia' is not found. Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ kernel: [ 17.943272] init: bumblebeed main process (980) terminated with status 1 Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ kernel: [ 17.943288] init: bumblebeed main process ended, respawning Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ bumblebeed[1026]: Module 'nvidia' is not found. The lspci -nn | grep '\[030[02]\]:' returned: 00:02.0 VGA compatible controller [0300]: Intel Corporation Ivy Bridge Graphics Controller [8086:0166] (rev 09) 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:0de9] (rev a1) Ok, for the command dpkg -l | grep '^ii' | grep nvidia i got : ii bumblebee-nvidia 3.0-2~preciseppa1 nVidia Optimus support using the proprietary NVIDIA driver ii nvidia-current 302.17-0ubuntu1~precise~xup1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-current-updates 295.49-0ubuntu0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 302.17-0ubuntu1~precise~xup3 Tool of configuring the NVIDIA graphics driver ii nvidia-settings-updates 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver After full reinstallation, including the remove of any previous nvidia drive, lsmod | grep -E 'nvidia|nouveau' returned: nvidia 10888310 46 dmesg | grep -C3 -E 'nouveau|NVRM' returned things like: [ 1875.607283] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 1875.607289] nvidia 0000:01:00.0: setting latency timer to 64 [ 1875.607293] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=none [ 1875.607363] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 302.17 Tue Jun 12 16:03:22 PDT 2012 [ 1884.830035] nvidia 0000:01:00.0: PCI INT A disabled [ 1884.832058] bbswitch: disabling discrete graphics [ 1884.832960] bbswitch: Result of Optimus _DSM call: 09000019 Some programs, like Scilab, are now working fine under optirun(e.g. >optirun scilab) call. Thank you.

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  • Acer Allionone Z5810 Touchscreen Issues 12.04

    - by Johannes
    I have an Acer Allionone Z5810, and I can't get the touchscreen to work after I install 12.04. Here is the lsusb output: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 0596:0508 MicroTouch Systems, Inc. Bus 001 Device 004: ID 04b8:0005 Seiko Epson Corp. Printer Bus 001 Device 005: ID 07ca:1336 AVerMedia Technologies, Inc. Bus 002 Device 003: ID 04ca:0058 Lite-On Technology Corp. Bus 002 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Bus 002 Device 005: ID 04f2:b23f Chicony Electronics Co., Ltd xinput --list Virtual core pointer id=2 [master pointer (3)] ? ? Virtual core XTEST pointer id=4 [slave pointer (2)] ? ? Lite-On Technology Corp. Wireless Device id=9 [slave pointer (2)] ? ? Lite-On Technology Corp. Wireless Device id=10 [slave pointer (2)] ? Virtual core keyboard id=3 [master keyboard (2)] ? Virtual core XTEST keyboard id=5 [slave keyboard (3)] ? Power Button id=6 [slave keyboard (3)] ? Power Button id=7 [slave keyboard (3)] ? Lite-On Technology Corp. Wireless Device id=8 [slave keyboard (3)] ? USB 2.0 camera id=11 [slave keyboard (3)] ? AT Translated Set 2 keyboard id=12 [slave keyboard (3)] My xorg.conf contains: nvidia-xconfig: X configuration file generated by nvidia-xconfig nvidia-xconfig: version 304.48 (buildmeister@swio-display x86-rhel47-04.nvidia.com) Sun Sep 9 21:31:39 PDT 2012 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" InputDevice "TouchScreen" EndSection Section "Files" EndSection Section "InputDevice" Identifier "TouchScreen" Driver "microtouch" Option "Type" "finger" Option "Device" "/dev/ttyS3" Option "ScreenNo" "0" Option "MinX" "0" Option "MaxX" "16383" Option "MinY" "0" Option "MaxY" "16383" Option "SendCoreEvents" "yes" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Unknown" ModelName "Unknown" HorizSync 28.0 - 33.0 VertRefresh 43.0 - 72.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 24 EndSubSection EndSection

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  • Is Infiniband going to get squeezed by iWARP and external QPI?

    - by andy.grover
    The Inquirer certainly thinks so.However, I'm not so sure it makes sense to compare Infiniband to an as-yet-unannounced optical external QPI. QPI is currently a processor interconnect. CPUs, RAM, and devices connected by it are conceptually part of the same machine -- they run a single OS, for example. They are both "networks" or "fabrics" but they have very different design trade-offs.Another widely-used bus in the system is closer to Infiniband than QPI -- PCI Express. Isn't it more likely that PCIe could take on IB? There are companies already who have solutions that use external PCI Express for cluster interconnect, but these have not gained significant market share. Why would QPI, a technology whose sweet spot is even further from Infiniband's than PCIe, be able to challenge Infiniband? It's hard to speculate without much information, but right now it doesn't seem likely to me.The other prediction made in the article is that Intel's 10GbE iWARP card could squeeze IB on the low end, due to its greater compatibility and lower cost.It's definitely never a good idea to bet against Ethernet when it comes to mass-market, commodity networking. Ethernet will win. 10GbE will win. But, there are now two competing ways to implement the low-latency RDMA Verbs interface on top of Ethernet. iWARP is essentially RDMA over TCP/IP over Ethernet. The new alternative is IBoE (Infiniband over Ethernet, aka RoCEE, aka "Rocky"). This encapsulates the IB packet protocol directly in the Ethernet frame. It loses the layer 3 routability of iWARP, but better maintains software compatibility with existing apps that use IB, and is simpler to implement in both software and hardware. iWARP has a substantial head start, but I believe that IBoE silicon will eventually be cheaper, and more likely to be implemented in commodity Ethernet hardware.I think IBoE is going to take low-end market share from traditional IB, but I think this is a situation IB hardware vendors have no problem accepting. Commoditized IBoE NICs invite greater use of RDMA features, and when higher performance is needed, customers can upgrade to "real" IB, maintaining IB's justification for higher prices. (IB max interconnect speeds have historically been 2-4x higher than Ethernet, and I don't see that changing.)(ObDisclosure: My current employer now sells IB hardware. I previously also worked at Intel. My opinions are my own, duh.)

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  • Ubuntu 13.10 installation fault

    - by macphisto1983
    I'm trying to install Ubuntu 13.10 64bit on my notebook, but after a few second the installation quit, i have to take screenshot with my phone, i saw an error: MMIO write of 0x00000000 write fault at 0x418880 [IBUS]![enter image description here][1] My notebook is Asus n56vv with Optimus intel + nvidia gt750m At now I have a working installation of Ubuntu 13.04, I just want to install Ubuntu 13.10, keeping my home folder, I also tried to try ubuntu, but I have the same issue and the system didn't load.

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  • ubuntu 13.04 recognizes usb mobile broadband modem as ethernet connection

    - by Bence Mihalka
    When I plug in my usb mobile broadband modem (ZTE MF-667), in the network manager instead of a mobile broadband connection, I get an ethernet connection, called: Ethernet Network (ZTE WCDMA Technologies MSM), which of course doesn't work. Here is my lsusb output and the relevant parts of dmesg output: lsusb: Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0cf3:3005 Atheros Communications, Inc. AR3011 Bluetooth Bus 001 Device 004: ID 04f2:b1b9 Chicony Electronics Co., Ltd Asus Integrated Webcam Bus 001 Device 005: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader Bus 002 Device 004: ID 19d2:1405 ZTE WCDMA Technologies MSM dmesg: [ 195.328467] usb 2-1.1: new high-speed USB device number 3 using ehci-pci [ 195.423545] usb 2-1.1: New USB device found, idVendor=19d2, idProduct=1225 [ 195.423555] usb 2-1.1: New USB device strings: Mfr=3, Product=2, SerialNumber=4 [ 195.423561] usb 2-1.1: Product: ZTE WCDMA Technologies MSM [ 195.423567] usb 2-1.1: Manufacturer: ZTE,Incorporated [ 195.423572] usb 2-1.1: SerialNumber: P680A1ZTED000000 [ 195.426319] scsi7 : usb-storage 2-1.1:1.0 [ 196.425354] scsi 7:0:0:0: CD-ROM CWID USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2 [ 197.447919] usb 2-1.1: USB disconnect, device number 3 [ 197.457582] sr0: scsi3-mmc drive: 243x/186x xa/form2 cdda pop-up [ 197.457594] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 197.459058] sr 7:0:0:0: Attached scsi CD-ROM sr0 [ 197.459483] sr 7:0:0:0: Attached scsi generic sg2 type 5 [ 197.759186] usb 2-1.1: new high-speed USB device number 4 using ehci-pci [ 197.854543] usb 2-1.1: New USB device found, idVendor=19d2, idProduct=1405 [ 197.854556] usb 2-1.1: New USB device strings: Mfr=4, Product=3, SerialNumber=5 [ 197.854564] usb 2-1.1: Product: ZTE WCDMA Technologies MSM [ 197.854572] usb 2-1.1: Manufacturer: ZTE,Incorporated [ 197.854579] usb 2-1.1: SerialNumber: P680A1ZTED010000 [ 197.957739] scsi8 : usb-storage 2-1.1:1.2 [ 198.076554] cdc_ether 2-1.1:1.0 eth1: register 'cdc_ether' at usb-0000:00:1d.0-1.1, CDC Ethernet Device, 00:a0:c6:00:00:00 [ 198.076583] usbcore: registered new interface driver cdc_ether [ 198.955985] scsi 8:0:0:0: CD-ROM CWID USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2 [ 198.956797] scsi 8:0:0:1: Direct-Access ZTE MMC Storage 2.31 PQ: 0 ANSI: 2 I created the appropriate mobile broadband connection manually, but I cannot enable it in network manager, since the device is not recognized as mobile broadband. Any tips how to make it work?

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  • Microsoft Dropping Itanium Support

    Microsoft plans to end the support it provides on three of its flagship software products for Intel's Itanium processor....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • "mcp power or thermal limit exceeded" excessive in messages.log

    - by Stefan Thyberg
    I keep getting "mcp power or thermal limit exceeded" every five seconds while my computer is on, regardless of what it's doing. I googled it and found some Intel patches but I don't really know exactly what they do or how to apply them and I also don't want to patch my kernel with these random bits of code from some newsgroup. Can anyone shed some light on what exactly is going on and what the right fix is in this case? Am I better off just waiting for a kernel patch?

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  • Looking to trade a 1U HP Proliant DL360 G5 in exchange for a small linux VPS

    - by user597875
    I have a 1U HP Proliant DL360 G5 that I have no place to rack and would like to trade it for a small linux VPS. If interested let me know... Here are the specs of the server: Model: Intel Xeon CPU 5150 @ 2.66GHz, 4MB L2 Cache Processor Speed: 2.7GHz Processor Sockets: 2 Processor Cores per Socket: 2 Logical Processors: 4 8GB of memory 4x72GB 10k SAS drives Manufacturer: HP Model: Proliant DL360 G5 BIOS Version: P58

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  • Saw a Windows Popup store in Galleria, St. Louis

    - by Kevin Shyr
    It was on first floor near the Apple store (Apple store is on 2nd floor).  But since I was with wife and kids, I didn't linger...Mary Jo Foley, as always, had the scoop:  http://www.zdnet.com/microsoft-goes-public-with-plans-for-32-holiday-pop-up-stores-7000003986/Now the question is whether to wait for the intel-based one; I guess the question before that one is whom I'm getting this tablet for.Still sworn off smartphone...

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  • The first MeeGo release

    <b>LWN:</b> "Today is the culmination of a huge effort by the worldwide Nokia and Intel teams to share the MeeGo operating system code with the open source community. This is the latest step in the full merger of Maemo and Moblin..."

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  • not detecting wireless networks

    - by pac
    i'm a new linux user and i cannot add or edit any network connections, nor is the system detecting any wireless networks when i try to access additional hardware from system, it doesn't even open...so i'm stuck. lspci | grep -i wireless comes out with 06:0a.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network connection (rev 05) lspci -n -s 06:0a.0 comes out with 8086:4220. i dont know if that info was relevant but any help on this would be appreciated.

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  • 2013 EC Elections Results

    - by Heather VanCura
    The 2013 Fall Executive Committee (EC) Elections process is now complete.  Congratulations to the following JCP Members as the new and re-elected EC Members!   We had a slight increase in JCP Member voter turnout at ~25% (up from 24% in 2012).  All Ratified candidates and the top eight Elected candidates were elected by the JCP Membership.  As part of the transition to a merged EC, Members elected in 2013 are ranked to determine whether their initial term will be one or two years. The 50% of Ratified and 50% of Elected members who receive the most votes will serve an initial two-year term, while all others will serve an initial one year term (details below). Ratified Seats: Credit Suisse, Ericsson, Freescale, Fujitsu, Gemalto M2M, Goldman Sachs, Hewlett-Packard, IBM, Intel, Nokia, Red Hat, SAP, SouJava, Software AG, TOTVS and V2COM. Open Election Seats: Eclipse Foundation, Twitter, London Java Community, CloudBees, ARM, Azul Systems, Werner Keil and MoroccoJUG. Newly elected EC Members take their seats on Tuesday, 12 November 2013.  More information is available on the JCP Elections page. Detailed Election Results Voting Period: 15 - 28 October 2013. Number of Eligible Voters: 1088 Percent of Eligible Members Casting Votes: 24.77% Ratified Seats: Candidate Yes Votes (%) No Votes (%) Abstentions Credit Suisse (2year term) 196 (84) 38 (16) 36 Ericsson (2 year term) 196 (88) 27 (12) 47 Freescale (1 year term) 151 (74) 53 (26) 66 Fujitsu (2 year term) 194 (87) 29 (13) 47 Gemalto M2M (1 year term) 170 (80) 42 (20) 58 Goldman Sachs (1 year term) 143 (64) 80 (36) 47 Hewlett-Packard (2 year term) 191 (82) 43 (18) 36 IBM (2 year term) 226 (91) 22 (9) 22 Intel (2 year term) 214 (90) 24 (10) 32 Nokia (1 year term) 139 (64) 78 (36) 53 Red Hat (2 year term) 245 (95) 12 (5) 13 SAP (1 year term) 166 (75) 56 (25) 48 SouJava (2 year term) 226 (92) 19 (8) 25 Software AG (1 year term) 167 (78) 47 (22) 56 TOTVS (1 year term) 129 (69) 59 (31) 82 V2COM (1 year term) 135 (71) 54 (29) 81 Open Election Seats: The top eight candidates have been elected; the top four receive a two year term, and the next four receive a one year term. Candidate Votes (%) Eclipse Foundation (2 year term) 221 (14) Twitter (2 year term) 203 (13) London Java Community (2 year term) 191 (12) CloudBees (2 year term) 179 (11) ARM (1 year term) 176 (11) Azul Systems (1 year term) 166 (10) Werner Keil (1 year term) 128 (8) MoroccoJUG (1 year term) 93 (6) Karan Malhi 56 (3) ChinaNanjingJUG 51 (3) JUG Joglosemar 47 (3) Viresh Wali 45 (3) ITP_JAVA 44 (3) None of the Above 3 (0)

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  • arduino not recongnized by Ubuntu 14.04 LTS

    - by Roger Gertz Jr.
    I installed Ubuntu 14.04 on my acer netbook D255E, its currently running a crucial SSD 256G 500read 333write and a 2G RAM card with the crappy Intel Atom processor. i'm fairly new to Ubuntu and I cant get the system to even acknowledge I plugged the Arduino Uno microcontroller connected to the USB port. can anyone offer a solution to this, I've read up on a few how-tos online on my desktop but they're all for older versions of ubuntu.

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  • Minecraft running slow after 13.10 upgrade

    - by user204279
    What to took for when Minecraft is running slow (~10 FPS) after a simple Ubuntu upgrade (from 13.04 to 13.10) without any manual change in the hardware/software graphic configuration and in the Minecraft configuration? Before the upgrade, it was running very well everytime (~60 FPS constantly). Any help? lspci | grep "VGA compatible controller" 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] (rev ff)

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  • bumblebee does not work with metacity and KWin, but works with compiz

    - by cpu2
    If I try to launch something with optirun under compiz, it works. If I try to launch something with optirun under KDE or metacity, it gives me: [ 247.384077] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) [ 247.384117] [ERROR]Aborting because fallback start is disabled. If it matters, I'm trying to launch Portal 2 with wine I have: Nvidia GeForce GT540M with optimus Acer Aspire Timeline X Intel core i5 and 3000 Integrated Graphics

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  • What are the advantages of mainframes?

    - by Scott Weinstein
    The downsides of Mainframes is well trodden ground; expensive, legacy, dwindling community, etc. I'm not particularly interested in the downsides, but I am curious if there are any benefits to mainframe hardware/software over the current Intel/AMD & Linux/Windows environment. I've been told that MFs are particularly good (and better than current servers) at heavy I/O loads. Is this still true?

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