Need driver for Intel HD Graphics 4000; running Ubuntu 18.04; Dell Latitude E6530

I have researched as best as possible before posting here. Read several dozens posts and sites. None fix my problem.

I just need to load the driver for the Intel HD Graphics 4000 card. I have read posts on Intel, numerous Linux and Ubuntu sites, and Dell. I find drivers for Windows but not for Ubuntu.

I’ve exhausted any ideas I could come up with. Help would be greatly appreciated. Thanks in advance. Here is the video card whose driver is loaded:

stu@dude-Latitude-E6530:~$ sudo lshw -c video
(sudo) password for stu: 
       description: VGA compatible controller
       product: 3rd Gen Core processor Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:34 memory:f6400000-f67fffff memory:e0000000-efffffff ioport:f000(size=64) memory:c0000-dffff

MySQL: normal CPU Utilization but I’m running out of memory. Should I get worried?

I’m running a heavy python script in a EC2 instance. This script is inserting tables (financial reports) to a MySQL server. There are lots of tables, the total amount is 240.000 tables. I started the python script 1 day ago and these are the stats of MySQL server. CPU Utilization / Memory As you can see, cpu utilization seems normal but memory has gone down since the script started running. Note that I’m only running this script, there is no other work for MySQL. How can I maintain the memory stable?

c# – Running out of memory using LinearGradientBrush

I have a program which is drawing lots of lines onto a screen (once per frame, not all in one Paint() call), using the LinearGradientBrush class. The endpoints and colors may be different every time. The code is below:

using (Brush brush = new LinearGradientBrush(oldLoc, newLoc, oldColor, newColor))
    using (Pen pen = new Pen(brush))
        g.DrawLine(pen, oldLoc, newLoc);

This works for a while but invariably runs out of memory and crashes. I’ve tried it with and without the Dispose() calls, and with and without the GC.Collect(), and it doesn’t seem to make a difference. I would have thought that between the using blocks, Dispose() and GC.Collect(), there would be something that clears the memory being allocated, but it doesn’t seem to work.

I can’t create the brush in advance and reuse it because the endpoints and colors will be different every time. I’ve tried saving one LinearGradientBrush and just changing its parameters each time I want to use it – this works for the colors, but not for the endpoints. I can apparently look at the Rectangle property of the brush, but it is readonly so it can’t be changed. Is there a better way to draw a gradient line that doesn’t depend on knowing where the start and end points are? In theory, it’d make sense to have a gradient from “start of line” to “end of line” which doesn’t need to know where those are when the brush is created.

(Note, this is not a duplicate of c# GDI+, Creating a LinearGradientBrush in a loop (memory leaks) because that question has predictable start and end points and colors, and mine need to change every time.)

windows – Batch file for running Bios update .exe

Hi I would like to create a batch file to launch an executable and click “OK” or “yes” on the prompts that popup instead of manually clicking each prompt.

this is what I have some far that starts up the exe

START \csd-stAppsLib_BIOSTest.exe

this is the exe that I need to have automated (

can this be done?

malware – Can virut (from around 2010) infect my Mac running OS X 10.15?

My friend has an old hard drive (Windows boot drive, I think XP) that contains data (music, images, etc) that he would like to recover. The problem is that it was infected around 2009/10 with a nasty piece of malware that I suspect is a variant/instance of virut. I surmise this because there was a process called reader_s that was run by the malware that was almost impossible to kill, and the only solution we ever found was to completely reformat the drive. Some googling leads me to believe this means the malware is virut. For the sake of the question we can assume that is true.

The question is: is it even possible for the hd to infect my mac with this malware if I connect it via a sata to usb adapter?

I suppose the ‘correct’ way to extract the information is as outlined here, but I was wondering what actual risk there is of it infecting my mac if I just plug it in? I can’t find reliable information about whether the virut variant of that time could run on OS X (although I would hazard not)… on the other hand, even if it can’t execute code there, I imagine it may still be possible for infected files to spread if the files are then copied to vulnerable OSs?


  1. Can my mac become infected by this malware if I copy data (media only, no executables) to it from the infected Windows hd?
  2. Even if not, can then transferring those (media only, no executables) files from my mac to a windows machine infect that machine (assuming this is virut)?

Desktop is crashing when I try to use any app -Ubuntu 20.04 VM running on VirtualBox

I hope you could help me to diagnose this problem. My environment is:

Description: Ubuntu 20.04 LTS – Release: 20.04 – Codename: focal

Oracle VirtualBox: Versión 6.1.8

When I search for an App, or click on one, or practically any interaction with the graphic interface, the desktop crashes, background turns black, window gets smaller, and then the login screen appears. Any App that was open before the crash, is closed after it. Last time I used this VM (like one month ago) everything was fine.

There is another problem I discovered today (I know I have to open another thread for a different problem, but I will only mention this here in case is related to the graphics problem): $ sudo apt-get update is not working because of “Hash Sum mismatch” errors.

Any help will be appreciated, thank you,


Running unverified app on mac

I am on macOS Catalina. On a site they say that, if I am having problems, in order to be able to run the app I need to input (sudo chown -R 755 in the terminal. My question is: is it safe to do so? Is there a way to reverse my actions?

windows 10 – Does any app/software takes up all the RAM while running that is required to run it smoothly

I was running Kali Linux Virtual Machine on my 4GB Windows 10 laptop and when I opened task manager, I saw virtual machine was not running on 1/2 GB RAM that is minimum requirement, so does any app/software takes up all the RAM that is required while running ?

debian – Running an X program as root no longer possible with xhost +localhost?

Trying to run any X program as root typically results in some error/warning with the string “cannot open display”. In the past, I could just fix this by doing xhost +localhost

This no longer appears to work (on Debian 10). How do I do this these days?

How to enable HTTPS for a website running on Azure VM with existing SLL .pem certificate

I am running, a non-profit website for clinicians to exchange clinical information.

The domain provider of the website is porkbun, which also provides SSL certificate that is downloadable in .pem format.

What are the step I need to take (on the VM and on Azure portal) so that I can use https instead of http (which gives security warning) on the website? Thanks a lot!