I've looked around a lot at many people's different questions and can't find one that is the same situation as the problem I'm having. Essentially a friend brought me an old PC of theirs with the request that there are some files they want taken off the hard drive. Unfortunately, their version of Windows had corrupted, so my solution was to boot Ubuntu from a USB drive without affecting the hard drive, to access the files and then the computer is going to scrap anyway. Unfortunately, as soon as the ubuntu software starts to load the lights on the keyboard and mouse turn off and when I eventually get to the option of 'Try Ubuntu', neither are responsive. I've tried restarting, I've tried different ports, I've tried unplugging and plugging back in, I've tried a different keyboard and mouse but I cannot find a solution. I installed the latest version of ubuntu from their website. I can use the keyboard in the BIOS settings etc. Anyone know what is happening? All help is greatly appreciated.
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My app is having tearing problems when I scroll fast horizontally. Normally I'd just enable vsync, but I don't know how to do that in Qt. The tearing is occurring on my dev PC which runs Linux with a X-server, but it will also need to work well on the target system which is either Android or Linux+EGLFS.
One google result was from the Qt4 era and said that the tearing will be gone in Qt 5. But apparently it isn't.
Many google results are about env vars for embedded linux systems, such as QT_QPA_EGLFS_FORCEVSYNC, but I'd prefer the solution to work for my dev PC as well.
One google result said that vsync being enabled/disabled depends on the renderloop in use. I don't override the renderloop, so, since I'm on linux, I think I'm using the threaded renderloop.
Here's a bugreport about nvidia binary drivers causing this.
https://bugreports.qt.io/browse/QTBUG-45480
I too am using those drivers, so this may be it - just a driver bug. If so, at least it's unlikely to happen on my target hardware (I still haven't tested there), so that's good.
I have a Raspberry Pi sd card that I'd really hoping I can get files off. I the sd card mounts in my Mac and I have a boot0 and RECOVERY under in the Mac devices menu. I can navigate the sd content on my Mac.
When I try to boot up the RPi with the sd card I get part way through the boot process then a flood of not normal text. Then it ends with "Fixing recursive fault but reboot in needed!" I had this twice now and the first time i waited about 5 minutes before shutting down. This time I am leaving it for about 30 minutes in hopes that another message comes up and it says Fixed or something else.
If I can navigate the card on my Mac what should I do next assuming it is not going to boot? Can I get to files on my Desktop? It is one folder in particular I would love to recover.
The RPi is a 2 version B.
I am not sure why this is not more documented but I found a solution. I have Googled for a hour easy trying to find a solution and literally looked at 100 sites of what other did. Nothing worked for me.
Here is what I ended up doing. I have another RPi around so I booted that up. Inserted the sd can into a reader. plugged the reader into the other RPi and boom! I have full access to the file system. I accessed my Desktop folder and the www folder. Moved the files over for what I needed to recover.
This was crazy easy so I sure hope other find this post and try this first before all the crazy instructions out there.
I installed linux debian as a 2nd system and it works fine, however when I choose Windows in loader(lilo) to boot, it stops on a windows logo.
I tried to boot in safe mode, and it stops on classpnp.sys driver.
I'm not sure whether the problem is in classpnp or in some other driver which is failed to load after it.
I also tried to boot with bootlog (ntbtlog), however it is not created (I check C:\Windows).
It seems like smth is wrong with hard drive configuration with several partitions.
I've googled a lot of similiar issues with classpnp.sys, but none of the solutions helped:
-I tried to change bios SATA coniguration from IDE to AHCI,
-restore backup configuration files (SAM, DEFAULT, SECURITY etc).
If anyone knows what else can I do with this, please help.
This belongs on super user, but you need to press F8 and select safe mode. There you can fix your problems
Have 4 DVI output. Seems I hopefully will have driver support on this. Details are sketchy online about supporting 4 outputs, but seems possible.
My question is from the Linux group and Virtualbox pros.... Will the seamless method of VirtualBox allow me to use all 3 of my monitors for multiscreen. I'd like to stick with Ubuntu and run Visual C# and other tools from my VirtualBox. Compiz effects are just too amazing to want Aero Glass.
What do you think, will my system be able to use the multiple monitors with VirtualBox and this graphics card? I've googled for hours and am still searching for answers.
Edit:
I tried virtualbox last night. Pretty slick, though I had an error in installing Visual C#NET. However, it wouldn't let you drag between multiple screens??? Is this something the host must resolve, or does the guest session need to have special settings for multiple monitors? Haven't been able to find anything in google supporting multiple monitors with virtualbox.
You should be able to configure your screens just fine. Don't know the exact details for an ATI setup, but you should be able to use Xinerama to create a single large virtual desktop, and then just run VirtualBox (though honestly, I prefer KVM, which runs on modern CPUs which provide native virtualization support) full-screen on one of those monitors. You would then be able to have three screens dedicated to Ubuntu, and the forth dedicated to Windows.
You might want to look into the non-Xinerama method of multiple displays. Each display is then treated as its own screen (so you'd have :0.0, :0.1, :0.2, and :0.3 for your X displays). You cannot move applications between the screens, but you get four independent desktops. I personally find that more useful than the idea of a single stretched desktop over multiple displays; when I used a laptop as my primary system, that's what I did, and when I get a second monitor for my computer, I'll likely return to that means of doing things. You'll have to investigate the specifics for such a setup with ATI, but the X server supports it, so it's just a matter of looking at your ATI driver's documentation to put the pieces together.
Hopefully this still falls within StackOverflow's umbrella!
I'm looking to create a quick boot linux laptop for my wife. All it really needs is to be able to do is browse the internet (with flash and video etc.).
Are there any distros that are made for this, or any guides out there that show good ways to speed stuff up? I've read that I should "remove stuff from the kernel that I don't use" but that's a little out of my skill set.
Thanks!
If you're using Ubuntu (or a variant, like xubuntu or kubuntu), there is a package called BootUp-Manager. There's an article about it over at Lifehacker. It lets you check and uncheck things in the startup and shutdown scripts to optimize things (such as turning off checking for new hardware, or whatever)
You may also be able to gain a simple speed-up by going into System->Administration->Services and disabling any services you don't need.
If you'd like to see how much time is being spent on each part, install the package Bootchart, and that should give you a detailed profile of everything that goes on during startup, and let you focus on the most time-consuming parts, and measure your progress as you tune the system.
I believe Xubuntu is designed for low memory footprint/fast booting and whatnot while still having a decent amount of features. Not a Linux user but it just seems to stick out in my head.
Some guys got an EEE PC netbook booting in 5 seconds running a modified version of Fedora. Might be a good starting point: http://lwn.net/Articles/299483/
Try: Damn Small Linux is a very versatile 50MB mini desktop oriented Linux distribution.
Alternatively, get an Asus motherboard with expressgate - it has an onboard Linux (spashtop) that boots in 3 seconds. Its designed for quick web surfing, IM, music etc whilst still letting you boot into your main OS.
If you really want it to boot fast, I would suggest creating an initrd containing exactly the software you need to do what you want it to do. The initrd will get read from the disk once as one large file, and then everything will run out of ram.
This is not an easy solution, the easiest solution will be jishi's solution of using a Live CD, but, that won't be the fastest solution.
I have been using Kubuntu 14.04.4/5 on a Dell laptop with dual boot. Am not real happy at the moment with it. You are all correct about the slowness of a liveCD.
There are LiveCD-versions of working linux-distros with browser and installed flash, java.
Check out LiveCD
http://en.wikipedia.org/wiki/Live_CD
you will find links to different flavours with download.
There are also USB-drive-versions.