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2015-12-08 11:18:11 -0500 commented question Is there a way to search my Firefox history from the Gnome Activities overview?

I don't think so, but there are Gnome search providers for websites e.g. wikipedia, stackexchange, and there are Firefox addons that extend FF into Gnome Shell. So I suspect it might be possible with some development.

2015-12-08 11:14:44 -0500 commented question Fedora 20 on Asus N550JK won't extend to external monitor

Are you using the nvidia drivers or nouveau? If you have installed it might be interesting to see if "nvidia-settings" sees both your displays under Screen 0 (also assuming you're using xserver and not Wayland). Maybe a little more information about your specific software setup would be helpful.

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2015-03-27 13:11:45 -0500 marked best answer How do I change the Gnome sound theme

There are several sound themes available via yum e.g. beethoven-fifth and acoustic. There is no obvious way to change the sound theme however in any of the sound-related settings dialogues.

How can I change the sound theme?

2015-03-27 11:47:22 -0500 marked best answer Host file changes not saved after reboot

When I add hosts (as root using vim) to my /etc/host file the changes only stick until I reboot. After the reboot the changes are gone.

Running FC17 and didn't have this problem on FC16 or earlier.

How do I make changes to this file permanent?

2015-03-27 11:46:54 -0500 marked best answer How do I further investigate a bootchart-generated process chart?

I have installed F16 on a SSD and see somewhat quick boot times, but nothing like the 10 or 20 seconds reported elsewhere. I have installed bootchart to see what is taking so long, as the boot process seems to stall right before the login process kicks in.

The bootchart shows about 50 or 60 seconds of a lot of "sleeping" processes with no CPU or IO occurring (Disk Throughput and CPU Usage are 0). None of the sleeping processes seem to be doing anything at all.

Am I reading this right? How do I investigate what is going on?

I can't attach so here is a link to the bootchart bootchart.png (if allowed).

2015-03-27 11:39:44 -0500 marked best answer How do I enabled my touchscreen in a multi-monitor setup?

If I plug in my Dell ST2220T into my F17 machine it is recognized as a touch device. However I have another non-touch monitor connected to the machine. The touch surface of the touchscreen is somehow mapped to the entire desktop's square footage. So if I touch the top left of my touchscreen it moves the mouse to the top left of my entire desktop, which means my other monitor since it is positioned on the left on the touch screen.

How can I run dual-head with a single touchscreen such that when I touch the touchscreen it ignores the other screen and works as expected, allowing touch to interact with just the touchscreen's display?

2014-10-01 02:00:00 -0500 marked best answer How do I calibrate my touchscreen? (Dell ST2220T)

When I plug my ST2220T into my F17 system it is properly recognized, however the touch parts are not calibrated.

I installed xinputcalibrator and ran it (Calibrate Touchscreens app). I am able to successfully touch each calibration point such that xinputcalibrator seems to finish and provides me with an xinput line that I am supposed to use in a startup script.

However xinput_calibrator opens a terminal to give me this command, and then seems to hang waiting for something. Am I supposed to just close the terminal?

If I open a terminal and run the suggested xinput command the touchscreen is most certainly not calibrated. Do I need to add this to a startup script (which ones are going to work?) and restart to enable the calibration?

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2014-02-12 23:17:51 -0500 marked best answer How do I change my boot theme?

I understand there are many themes out there for the software called Plymouth, but I'm not clear on how to actually change the theme.

2014-01-22 11:32:20 -0500 commented question Bluetooth no longer active before login after F20 upgrade

Bug filed - I'll update this question if I find an answer

2014-01-21 21:33:40 -0500 asked a question Bluetooth no longer active before login after F20 upgrade

I have a Bluetooth keyboard (via USB adapter) that I use. In F19 when the login screen presented itself the Bluetooth keyboard was active and working. I used fedup to upgrade to F20 and now my Bluetooth keyboard is no longer active until I login. Once I login I type a key and it activates the Bluetooth capabilities and the keyboard works.

How do I get my BT keyboard working before login? Using the onscreen keyboard with a mouse is painful.

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2013-09-30 12:27:26 -0500 answered a question How do I enabled my touchscreen in a multi-monitor setup?

After some research I have found the solution, and it involves matrices (remember those?)

Basically you have to provide the driver with an updated "touch area". It is not as simple as it sounds because many touchscreens are on tablets, and the software has to support rotating monitors etc.

This Ubuntu page does a good job of showing the general concepts behind using the matrix approach, but borders on incomprehensible if you don't remember your matrix math.

This ArchLinux wiki page does a nice job of showing you how to calculate the actual values you need to set for your specific monitor setup.

The values are

c0 = touch_area_width / total_width
c2 = touch_area_height / total_height
c1 = touch_area_x_offset / total_width
c3 = touch_area_y_offset / total_height 

So for my specific setup I:

xrandr - find my total area
xinput list - to find my device
xinput list-props deviceID - to confirm current matrix is the identity matrix

Then I used the ArchLinux formulae to calculate c0, c1, c2, and c3.

Finally I set the new matrix into place:

xinput set-prop deviceID 'Coordinate Transformation Matrix' c0 0 c1 0 c2 c3 0 0 1

Presto! The touch area is now working properly. This was for a dual monitor setup with one landscape monitor and one portrait. Just follow the formulae and you'll see success too.

Update: This change only lasts until you log out. To make it permanent create a file /etc/X11/xorg.conf.d/99-touchscreen-calibration.conf with the following contents:

Section "InputClass"
         Identifier "Touchscreen_Calibration"
         MatchProduct "LG Display LGD-MultiTouch"
         Option "TransformationMatrix" "0.646464646 0 0 0 0.642857 0.357142857 0 0 1"
EndSection

Replace my numbers with your numbers. Now the touchscreen will be calibrated with each reboot automatically.

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