Recently I have seen an Ubuntu 16.04 server producing segfaults errors in kern.log and dmesg. It was traced to a process calls nfsidmap May 22 03:36:56 penguinoserver1 kernel: [241227.277964] nfsidmap[28966]: segfault at 0 ip 00007f2471ff6ad3 sp 00007ffc480fa048 error 4 in libc-2.23.so[7f2471f6d000+1c0000] May 22 03:36:56 penguinoserver1 kernel: [241228.117058] nfsidmap[28970]: segfault at 0 ip 00007f044aa31ad3 sp 00007fff80f0a998 […]
After applying Windows 10’s May 2017 Creators update, I found that my Adobe photoshop element’s menu bar has disappeared, and menu items were blank. Adobe was good enough to publish an unofficial fix: https://forums.adobe.com/thread/2357293 Apply the following registry value, follow by a reboot. Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\GRE_Initialize] “DisableFontBootCache”=dword:00000001
After converting a couple of legacy Ubuntu 6(!) VMs from ESXi vmdks to qcow2, in Proxmox I setup the vm guests and chose the SATA interface for the qcow2 images. During boot up, grub was showing the error “Begin: Waiting for root file system… …” And after a minute or two waiting. “ALERT! /dev/sda1 does […]
Many moons ago I bought a MK809 II Android TV stick. This is a popular RK3066 device that one can flash G8’s Picuntu image, and run Ubuntu server on it. It was bleeding edge stuff where you could install an armhf version of Ubuntu 12.04 onto the stick. It makes an ideal “stick server” […]
After experiencing overheating problem with Windows 10 on my HP DV7 4131sa laptop, I had to roll back to Windows 7. I was getting the infamous “black screen” problem. After much research I had a hard time trying to locate older version of AMD Catalyst software. Eventually I found it here myself http://support.amd.com/en-us/download/desktop/previous?os=Windows%207%20-%2064
General USB problems Remove all USB devices and cables Click on start orb, Type Advanced System settings in the search box and click to go there. Click on Advanced tab, Click on Enviroment Variables. Under the window System variables click on New. Type “devmgr_show_nonpresent_devices” (without the “) as the variable name and type 1 […]
