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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Issues with HDMI output (slrpnk.net)

submitted 1 month ago by countrypunk@slrpnk.net to c/linux@lemmy.ml

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I have a thinkpad T480 with LMDE and up until about two months ago it would work with this Samsung commercial display TV, although it never played audio from the TV like it was supposed to.

Now when I plug in the HDMI cable the screen turns black (not blue, which is when there's no signal). If I go into display it shows that the TV is connected.

I know that this isn't a hardware issue because I've used the same HDMI cable and laptop on a different TV and it worked fine. xrandr also says that HDMI-2 is connected.

Help

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[–] Strit@lemmy.linuxuserspace.show 1 points 1 month ago (1 children)

Maybe you just need to "enable" it in the display settings of your DE.

[–] countrypunk@slrpnk.net 1 points 1 month ago (1 children)

The GUI display settings for mint Debian edition don't have an enable/disable button on my machine. It shows that the TV is connected as monitor 2.

[–] f4f4f4f4f4f4f4f4@sopuli.xyz 1 points 1 month ago* (last edited 1 month ago)

You should have a display enable/disable switch in LMDE's "Display" settings GUI, though it shouldn't be necessary? Please try another (few) cable(s) because they do vary. Anecdote: I've heard of Samsungs being picky like this and only refusing to work with that one device you are trying to use.

Edit: Can your mouse pointer or windows get to the missing screen? Also xrandr -q shows display status.