Sometimes due to your BIOS/EFI you may find that you have chosen "Energy Efficient" for your CPU which may effectively disable turbo mode. This is because "Energy Efficient" will often restrict or throttle your CPU to the base speed. This can impact nearly any CPU such as Intel's, AMDs, Opteron, Xeon etc...
This is of course frustrating, for example if you have a CPU that is 2.0GHz base speed but turbo to 2.5GHz, you will never hit more than 2GHz.........
It may appear to be an Xorg or lightdm/gdm/mdm error but in reality for many users with this issue, it's a driver conflict and issue. I had a system that had two GPUs, an Intel and Nvidia GPU.
The only thing that got it working was to remove the nouveau driver and blacklist it so it never came back, then the Intel GPU works fine without these issues.
sudo rmmod nouveau
add nouveau/other driver to blacklist
One easy way is to use lspci -k like this:
sudo lspci -k|grep modules|sort -nr|uniq
Kernel modules: snd_hda_intel
Kernel modules: shpchp
Kernel modules: pata_acpi
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
Kernel modules: mei_me
Kernel modules: lpc_ich
Here is the scenario, you are using QEMU/KVM and are using something like the AC97 sound driver to pass the host audio to the guest via pulseaudio. This is useful because you can transparently pass your mic input from the host which means you can mute your microphone from the host, which prevents the guest from receiving any mic input even if unmuted.
Mute / Unmute Fix
This issue also seems to happen even if you press the mute button on the microphone and then unmute,........
From the terminal do this:
cat /proc/cpuinfo|grep -E "svm|vmx"
You should get output like this(svm = AMD-v and vmx=Intel-VTx):
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 syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqd........
If you are using the stock 5.4 kernel this is normal but I can confirm it is fixed in newer 5.8 kernels.
To fix it just install the 5.8 kernel and reboot:
sudo apt install linux-headers-5.8.0-64-generic linux-modules-extra-5.8.0-64-generic linux-image-5.8.0-64-generic........
apt install software-properties-common
apt install python3-pip
apt install python3.7 curl gnupg python3.7-dev git
ln -s /usr/bin/python3.7 /usr/bin/python3
pip3 install numpy keras_preprocessing
curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add -
echo "deb [arch=amd64] http://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel........
In Centos 7 tftpd will not work with selinux. Clients will not be able to connect and this is all you'll see in the log (then nothing more):
Sep 18 14:39:15 localhost xinetd: START: tftp pid=4331 from=192.168.1.65
On the client/computer side you will see this:
PXE-M0F: Exiting Intel Boot Agent
Basically the client is being instantly connected and bloc........
CPU:Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz
MOBO: Manufacturer: ASUSTeK COMPUTER INC.
Product Name: P8H61-M LX3 PLUS R2.0
This is weird but the only OS I've found this machine doesn't work with is Windows 2019 Server. Ihave no idea, when 2008, 2012 work f........
How to check if nested KVM is enabled by doing a cat on nested inside sys
Nested KVM is mainly important for testing for example if you wanted to install VMWare or Proxmox Nodes in a virtual environment for testing. Without nesting, the performance will be extremely slow, since the VMs within the nodes will not be using Virtualization extensions.
I've used wildcard on kvm_ because it could be kvm_intel or kvm_amd depending on whether y........
You can search for this bug and it seems like it may be related to ecryptfs and is many years old.
The symptoms are that you return to the computer and the screensaver was active or the screen was asleep/black and it doesn't seem to come back. But you check by SSH the computer is running fine and are frustrated you'll lose your running programs and have to reboot.
There is a simple solution:
Ctrl + Alt + F1
Ctrl +Alt + F8
Intel VT-X is enabled in Virtualbox but it doesn't seem to pass through the needed vmx extension despite the following variables on the host confirming it is enabled:
OVF Tool: Disk progress: 99%
OVF Tool: Transfer Completed
OVF Tool: Powering on VM: Embedded-vCenter-Server-Appliance-
OVF Tool: Task p........
This is not the normal "black screen"issue and I was shocked to eventually find out why. The normal advice of reconfiguring Xorg didn't work. Even booting into "Recovery Mode" did not help.
Here is the short end of the stick that fixed it:
sudo apt-get install mdm mate-desktop-environment
Yes you got it right, mdm and the mate-desktop-environment / gnome were somehow uninstalled. This must be whe........
It looks like this has something to do with APIC but I am not sure. I have similar CPUs with a different MB and BIOS that work fine on the same type of kernel. A lot of time the issue is because of the C-step setting in the BIOS.
The same thing happened on the 2.6 kernel with Centos 6 but this is a homebrew 4.4 kernel soI am not sure why it is happening when even Centos 7 (3.2) kernel works OK.
Solution - It comes down to the BIOS set........
Intel NUC J3455 vs Vorke V1 J3160
Both are excellent units but the J3160 is nicer if you require even lower power usage (6W vs the Intel 10W). The price is attractive on the Vorke V1 as well. It's been said that the Intel J3455 NUC has a buggy BIOS and some other issues that require attention.
The Intel J3455 is still nice because it has 2 RAMslots but it does get hotter due to lack of fan.
The Vorke V1 runs cooler, uses less power an........
When using the .sh script the rendering doesn't work after an upgrade of related packages to kdenlive.
kdenlive (kdenlive:amd64 (4:17.04.1+git201705191233~ubuntu16.04.1)) with affine or composite transitions was fine but is now broken during the time of transition it is just a white screen.
The previous version was fine:
But now I can't find it or install it:........
[1035724.274610] [drm:intel_pipe_update_end [i915_bpo]] *ERROR* Atomic update failure on pipe A (start=62076478 end=62076479) time 102 us, min 894, max 899, scanline start 893, end 900
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1.bin for module i915_bpo
I've been getting those errors on a J3455 NUC box with the latest kernel on Linux Mint 18.2. When updating the initramfs I also got the error about the firmware........
When running cudaminer once it tries to initialize the card the entire screen freezes. The computer itself is still running but the Xorg is done for, you cannot even switch to another console window and must reboot (even an mdm or Xorg restart does not help).
At first cudaminer will give you these errors:
...retry after 15 seconds
GPU #0: Geforce 210 with compute ca........
sudo mkdir -p /etc/X11/xorg.conf.d/
sudo vi /etc/X11/xorg.conf.d/20-intel.conf
On newer Ubuntu / Mint / Debian systems the file would go in: /usr/share/X11/xorg.conf.d/20-intel.conf
Type "i" and enter the following:
Identifier "Intel Graphics"
I get the following error "Installer Crashed" on 18.1 MATE 64-bit when installing by NFS/PXE. Yet it was able to at least detect and use my NIC (perhaps the driver was only activated because of PXE/NFS being used)?
When using 18.1 Cinnamon on CD the NIC does not work but the installer did succeed. However it doesn't work right, I can't login graphically and get some Cinnamon OOMerror but how can this be with 8GB of RAM straight from login?........
Dell CS24SC Info
0000:00:00.0 Host bridge: Intel Corporation 5100 Chipset Memory Controller Hub (rev 90)
0000:00:02.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x8 Port 2-3 (rev 90)
0000:00:03.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x4 Port 3 (rev 90)
0000:00:04.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x16 Port 4-7 (rev 90)
0000:00:05.0 PCI bridge: Intel Corporation 5100 Chipset PCI Express x4 Port 5 (rev 90)........
0000:00:00.0 Host bridge: Intel Corporation 5000P Chipset Memory Controller Hub (rev b1)
0000:00:02.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 2-3 (rev b1)
0000:00:03.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 3 (rev b1)
0000:00:04.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 4-5 (rev b1)
0000:00:05.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4........
On the same OS with the same kernels basically I cannot boot FreeBSD installer, I believe the issue is the host CPU.
One host runs an Intel and works, while an Opteron 2373 does not work despite suggestions from this thread: http://126.96.36.199/showthread.php?t=36761
I've tried cpu options like "kvm64" "Opteron_G3" and none........
I've encountered this problem before and I believe it may affect other drivers (I could test but I don't have time). This was happening on my custom Linux system with the pcnet32 driver.
pcnet32: eth0: transmit timed out, status 97fb, resetting (and some other kernel module tracing in dmesg)
Basically it means the card is connected (it shows connected in full duplex etc.. and recognized if the cable is disconnected too) but no packets can be sent or received........
My mother needed a new laptop and I recommended her the same one I would have bought myself or my wife, that means the cheapest possible laptop with the most features for the money.
This HP shines at this price point and one thing that made me stay away from buying more and recommending HP/Compaq was the poor battery life. Not anymore, this model has an industry leading up to 4 hours of battery life.
Key Factors for Choosing It:
Jan 5 12:45:05 testbox kernel: [653298.890004] BUG: soft lockup - CPU#0 stuck for 61s! [hal-acl-tool:4168]
Jan 5 12:45:05 testbox kernel: [653298.890005] Modules linked in: vmnet vmci vmmon binfmt_misc drbd video output input_polldev ocfs2_stackglue ocfs2_dlmfs ocfs2_dlm ocfs2_nodemanager configfs k8temp hwmon_vid lp snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi........
This happens on some systems due to a video issue with Intel Videocards, after you see the kernel load you may see almost immediately that you get a black screen.
The following kernel parameters usually solve it:
nomodeset i915.modeset=0 xforcevesa
some people just use "nomodeset" and others use "i915.modeset=0". I think nomodeset may also do the same for each video driver so it may imply i915.modeset=0 anyway but I am not sure.........
This is obviously a bug in the r8169 kernel module and it seems to affect a lot of people. I upgraded to the latest kernel and hope this won't happen anymore, as it is a very serious error. This is especially serious for those who are running servers with this chipset, who can afford for the NIC to randomly go off-line for no apparent reason?
[655548.189113] type=1505 audit(1277067560.902:5): operation="profile_load" name="/usr/bin/freshclam&q........
I'm using Ubuntu 8.04 but anyone using older kernels will find this may apply to them. My Intel graphics are very slow with the default Xorg settings but by using "EXA" acceleration, scrolling down windows of text becomes pretty snappy.
Just edit /etc/X11/xorg.conf
Identifier "Configured Video Device"
Do you have an LGA1156 board and wonder why your onboard video isn't working? It's probably because there is no GPU integrated on the board itself, it is supposed to be on the CPU and new CPU's from Intel don't come with it!
I was shocked to learn that you can buy a motherboard with onboard video which doesn't work. Inever knew it was being done or possible, but to make it worse the latest Core i5's don't have video on the die of the CPU.
This means having on........
This was unbelievable how much the Xen kernel slows things down, keep in mind both tests were done on the hostnode, one was with the Openvz-Xen hybrid kernel and the other was just OpenVZ. You can see the performance difference is nearly 300% better when not using the Xen kernel.
OpenVZ-Xen Kernel Test Results (I was wondering what was wrong/so slow with my Core i5!)
# # # # # #&n........
Linux Unix Xorg X Server Intel Extreme i810 Graphics Problem(EE) I810(0): No Video BIOS modes for chosen depth.
(EE) Screen(s) found, but none have a usable configuration.
I have a new Dell PC with one of the latest Intel Extreme Graphics on-board crap. From what I can see any Linux/Unix/FreeBSD versions running XFree86 or Xorg from years ago or the latest version today will have this problem.
It's easily corrected FOR MOST people. Go into your........
The New Chips on the BlockThe New Chips on the Block
By Bruce Gain
Story location: http://www.wired.com/news/infostructure/0,1377,67795,00.html
02:00 AM Jun. 13, 2005 PT
We have embarked upon a new era in x86 PC computing -- so say chip giants AMD and Intel following their launches of dual-core PC processors. So how will dual-core processing change your PC computing experience? Our FAQ should help you decide whether or when you sho........
Intel's Finnish FetishIntel's Finnish Fetish
By Dave Mock
June 13, 2005
Chipmaker Intel (NASDAQ: INTC) has successfully topped the personal computer market for decades. Breaking into related areas such as communications has been much difficult for the world's largest semiconductor maker. But a new partnership with Nokia (NYSE: NOK) could help to change that.
Intel's forays into cellular-phone and home-entertaiment-device chips have........
Linux Kernel v188.8.131.52
SYMLINK include/asm -> include/asm-x86
drivers/net/igb/igb_main.c: In function `igb_up':........
This is the Intel Atom 330 motherboard with integrated Realtek Gigabit NIC (Intel Desktop Board D945GCLF2 Motherboard W/ Atom 330 1.6 GHz Dual Core Processor - Mini-ITX)
I cannot achieve more than 15 MB/s, even doing a local transfer through eth0 to it's own IP.
100% 95MB 15.9MB/s 00:06
So this is not a cabling, switch or hardware issue, it seems like a driver or chipset limitation problem.
Here is my........
When trying to even cd or ls the mounted OCFS2 partition it crashes. Ithink this is a combination of VMWare Server's problem and the way I mounted and symlinked to it.
More than anything this shows the problem and lack of forsight with VMWare, but also that OCFS2 is easily crashed if you do strange things.
Output of /var/log/messages for OCFS2
Apr 10 15:57:45 localhost kernel: [84331.691258] Modules linked in: vmnet vmci vmmon ocfs2_stac........