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Questions tagged [vga]

Questions relating to vga (Video Graphics Array) display devices and connections

266 questions
28
votes
2 answers

Disable second, non-existent screen from command line

My laptop adds/enables a VGA monitor called vga2 that doesn't actually exist every time I reboot, which fiddles with the mouse speed amongst other annoyances. What can I do to either stop it being enabled or automatically disable it on boot?
N. McA.
  • 333
21
votes
12 answers

HDMI/VGA connection cuts borders of screen or creates blurry text

Ok this is an extension of another problem I had with a VGA connection and an Nvidia Geforce GT 440 card. The question has been updated to include other problems related to HDMI Video and also since I have confirmed that it also affects ATI video…
Luis Alvarado
  • 216,643
17
votes
2 answers

How to test 3d acceleration?

I want to install and test 3d acceleration in Ubuntu 12. I have read these…
HappyDeveloper
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15
votes
3 answers

External monitor not detected with USB-C adapter

I have a Dell XPS 9350 laptop (Ubuntu edition), and am connecting it to an external monitor with a Dell DA200 adapter (USB-C to VGA+HDMI+ethernet), using VGA. It has worked smoothly for months, but since today it is not recognized anymore. The…
Pierre Gramme
  • 343
13
votes
5 answers

Can I force VGA signal output even when xrandr shows 'disconnected'?

My notebook is connected to a HDTV through a KVM Switch (one other notebook also connected to the same HDTV). The problem seems to be that Ubuntu doesn't recognize the HDTV to be turned on and therefore doesn't enable the VGA output. As far as I…
Tobe
  • 133
10
votes
1 answer

How to create/extract the EDID for/from a Monitor

Is it possible to create or extract the Extended Display Identification Data (EDID) for/from a monitor. I have some issues with my monitor with the VGA and HDMI cables and I would like to test if by adding the EDID to the Nvidia Settings it could…
Luis Alvarado
  • 216,643
9
votes
3 answers

Why can't I see 16:9 aspect ratios?

So for a while I have had an old EMA 15" monitor hooked up to my Ubuntu machine running Ubuntu 15.04. The Monitor runs 1024x768 (4:3). At this point all is fine. But I hooked my computer to my Sansui HDTV and it will not let me have a 16:9 ratio…
dubCraft Nation
  • 160
7
votes
3 answers

HDMI to VGA - External Monitor Not Detected

I have an Acer Iconia tab w500 running Ubuntu 12.04 - The only output I have is an HDMI output so I bought an HDMI to VGA cable to connect it to my external monitor. It's not being detected by Ubuntu. Please let me know what other information you…
Sam Hakes
  • 101
7
votes
2 answers

Use external monitor automatically, when started in Docking Station

I am using a Thinkpad T510 and I often boot it in a ThinkPad Mini Dock Plus Series 3 (EU). The problem is that if I boot it with the lid closed, I can see grub, I can see the Ubuntu boot splash, but after that my external monitor (connected via VGA)…
user63899
  • 71
7
votes
1 answer

Bumblebee : Module bbswitch could not be loaded

I've upgraded to 12.04 and I had to switch from Ironhide to the latest version of Bumblebee. Now, when I try to run bumblebeed, I get this error: FATAL: Module bbswitch not found. [ERROR]Module bbswitch could not be loaded (timeout?) [WARN]No…
StepTNT
  • 333
7
votes
2 answers

HDMI to VGA converter connection errors

I'm getting a weird error when connecting my VGA monitor via an Aukey HDMI to VGA adapter to my laptop's HDMI port: Whether a connection can be established or not (i.e. on startup, when opening system settings or when running xrandr --query) is…
Felix Edelmann
  • 121
6
votes
1 answer

Black screen with cursor after login in cinnamon when VGA monitor is plugged

I have a problem with an Ubuntu 16.04.1 LTS + Cinnamon installation and Linux Mint 18.1 + Cinnamon: black screens after login when an external VGA monitor plugged. These are the facts: Sometimes I power on the computer, login with my password and…
user362109
6
votes
2 answers

Ubuntu. VGA to USB driver

I'm having trouble finding information about this. I know there are similar questions, but the only one with an answer is 5 years old and the answer is outdated. I just bought a new laptop, they don't come with VGA inputs anymore (at least the…
alejoss
  • 489
6
votes
2 answers

Does Ubuntu include support for the Intel GMA 500?

I would like to know if the new open-source video driver included in kernel 3.0.x for the Intel GMA 500 will be included by default in the kernel that will be shipped in Oneiric Ocelot. The driver support of this GFX chipset has always been poor and…
lucazade
  • 141
6
votes
2 answers

Diagnose brightness control

Brightness control on my laptop does not work, how can I diagnose if it's unsupported, or a bug? And if it is a bug, what do I include in the bug report? UPDATE Thank you for all the responses, specially @Guandalino for the bounty. But unfortunately…
Oxwivi
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