Technical Issues

Moderators: GZDoom Developers, LZDoom Developers, UZDoom Developers

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Please be as descriptive as possible in your posts (list your hardware and operating system, the version of the source port you are using, any mods you are running and how they're being loaded, etc.)
This will help others to give you a solution!

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Consolidating some of the older, but still helpful sticky threads
Moderator: GZDoom Developers
Topics: 4

4 Topics

27 Posts

Last post Re: GZDoom Player 1 of 1 Node…
by woofdg79 View the latest post
Thu Jan 06, 2022 1:13 pm

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What’s Happening With UZDoom?

Last post by phinet « Fri Apr 10, 2026 2:36 pm
Posted in ZDoom (and related) News
Replies: 141
by Boondorl » Tue Oct 21, 2025 2:08 am » in ZDoom (and related) News
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141 Replies

46249 Views

Last post by phinet
Fri Apr 10, 2026 2:36 pm

Topics

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Last post

A way to for mods to detect OpenGL version?

Last post by Chris « Fri Aug 03, 2018 8:23 am
Replies: 5
by DnB-Freak » Thu Aug 02, 2018 9:42 am

5 Replies

551 Views

Last post by Chris
Fri Aug 03, 2018 8:23 am
GZDOOM 3.5.0 Modern - Slight Slowdown

Last post by Thenuke « Thu Aug 02, 2018 7:18 am
Replies: 6
by Thenuke » Wed Aug 01, 2018 6:46 pm

6 Replies

706 Views

Last post by Thenuke
Thu Aug 02, 2018 7:18 am
GZDoom 3.5.0 error

Last post by PersonalComp234 « Mon Jul 30, 2018 2:34 pm
Replies: 4
by PersonalComp234 » Mon Jul 30, 2018 1:49 pm

4 Replies

666 Views

Last post by PersonalComp234
Mon Jul 30, 2018 2:34 pm
multiplayer between Linux and Windows

Last post by Caligari87 « Mon Jul 30, 2018 12:31 pm
Replies: 2
by Guest » Mon Jul 30, 2018 8:53 am

2 Replies

664 Views

Last post by Caligari87
Mon Jul 30, 2018 12:31 pm
[HELP] Getting my MOD to run on MAC

Last post by Hidden Hands « Wed Jul 25, 2018 9:02 am
Replies: 3
by Hidden Hands » Wed Jul 25, 2018 8:17 am

3 Replies

822 Views

Last post by Hidden Hands
Wed Jul 25, 2018 9:02 am
input errors render the game near-unplayable

Last post by Guest « Sun Jul 22, 2018 11:10 am
Replies: 5
by geuchemain » Sat Jul 21, 2018 6:38 pm

5 Replies

638 Views

Last post by Guest
Sun Jul 22, 2018 11:10 am
Automap sprites are too big at 4k resolution.

Last post by jdznd « Sun Jul 22, 2018 4:31 am
Replies: 2
by Guest » Sat Jul 21, 2018 11:13 pm

2 Replies

428 Views

Last post by jdznd
Sun Jul 22, 2018 4:31 am
The sprites of the actors are invisible

Last post by Cacodemon345 « Wed Jul 18, 2018 4:21 am
Replies: 3
by Guest » Tue Jul 17, 2018 9:50 pm

3 Replies

517 Views

Last post by Cacodemon345
Wed Jul 18, 2018 4:21 am
No music playback

Last post by Firebat « Sun Jul 15, 2018 10:55 am
Replies: 2
by Firebat » Sat Jul 14, 2018 11:40 pm

2 Replies

532 Views

Last post by Firebat
Sun Jul 15, 2018 10:55 am
V-Sync's broken on AMD card's

Last post by Aeyesx « Wed Jul 11, 2018 9:20 am
Replies: 2
by Aeyesx » Wed Jul 11, 2018 7:52 am

2 Replies

614 Views

Last post by Aeyesx
Wed Jul 11, 2018 9:20 am
Keyboard is not supported

Last post by wildweasel « Tue Jul 10, 2018 12:14 pm
Replies: 1
by Guest » Tue Jul 10, 2018 11:02 am

1 Replies

316 Views

Last post by wildweasel
Tue Jul 10, 2018 12:14 pm
Extremely choppy, slowed sound seems to randomly appear

Last post by Graf Zahl « Mon Jul 09, 2018 12:18 am
Replies: 2
by Guest » Sat Jul 07, 2018 11:39 pm

2 Replies

407 Views

Last post by Graf Zahl
Mon Jul 09, 2018 12:18 am
Gzdoom is running in *literally* running in slow motion

Last post by FireSeraphim « Sun Jul 08, 2018 3:39 am
Replies: 15
by Guest » Sun Jul 08, 2018 12:12 am
1

2
15 Replies

2694 Views

Last post by FireSeraphim
Sun Jul 08, 2018 3:39 am
PBR and shadowmaps

Last post by Indecom « Sat Jul 07, 2018 4:03 am
Replies: 4
by Indecom » Sat Jul 07, 2018 3:14 am

4 Replies

751 Views

Last post by Indecom
Sat Jul 07, 2018 4:03 am
GZDooM lags horribly

Last post by wildweasel « Wed Jul 04, 2018 9:57 am
Replies: 1
by Guest » Wed Jul 04, 2018 9:43 am

1 Replies

343 Views

Last post by wildweasel
Wed Jul 04, 2018 9:57 am
I can't change the name of my account :/

Last post by wildweasel « Tue Jul 03, 2018 12:45 pm
Replies: 1
by Dude27th » Tue Jul 03, 2018 12:31 pm

1 Replies

373 Views

Last post by wildweasel
Tue Jul 03, 2018 12:45 pm
Having low framerate with GZdoom

Last post by Guest « Tue Jul 03, 2018 1:16 am
Replies: 13
by Plonkett » Fri Jun 22, 2018 4:48 pm

13 Replies

6176 Views

Last post by Guest
Tue Jul 03, 2018 1:16 am
Zdoom not opening mod

Last post by wildweasel « Mon Jul 02, 2018 8:54 am
Replies: 1
by Guest » Mon Jul 02, 2018 8:43 am

1 Replies

356 Views

Last post by wildweasel
Mon Jul 02, 2018 8:54 am
FIXED: Texture not appearing properly

Last post by Sir Hattington « Sun Jul 01, 2018 4:56 pm
Replies: 2
by Sir Hattington » Wed Jun 27, 2018 3:09 pm

2 Replies

513 Views

Last post by Sir Hattington
Sun Jul 01, 2018 4:56 pm
[Question] How to fix weapon light in dark rooms?

Last post by Guest « Sun Jul 01, 2018 12:45 pm

by Guest » Sun Jul 01, 2018 12:45 pm

0 Replies

277 Views

Last post by Guest
Sun Jul 01, 2018 12:45 pm
3.5 and screen resolution

Last post by PlayerLin « Sat Jun 30, 2018 9:20 am
Replies: 4
by Guest » Thu Jun 21, 2018 4:54 am

4 Replies

908 Views

Last post by PlayerLin
Sat Jun 30, 2018 9:20 am
Continuous Crashing

Last post by _mental_ « Sat Jun 30, 2018 1:39 am
Replies: 4
by Guest » Thu Jun 28, 2018 10:22 am

4 Replies

578 Views

Last post by _mental_
Sat Jun 30, 2018 1:39 am
JDN's performance issue [split]

Last post by JDN « Fri Jun 29, 2018 9:43 am
Replies: 25
by JDN » Sat Jun 16, 2018 11:27 am
1

2
25 Replies

2408 Views

Last post by JDN
Fri Jun 29, 2018 9:43 am
Game bombs out when using a 3D model pack.

Last post by wildweasel « Mon Jun 25, 2018 8:06 pm
Replies: 2
by Guest » Mon Jun 25, 2018 3:58 pm

2 Replies

381 Views

Last post by wildweasel
Mon Jun 25, 2018 8:06 pm
Sprites

Last post by Graf Zahl « Mon Jun 25, 2018 12:13 am
Replies: 1
by Guest » Sun Jun 24, 2018 5:58 pm

1 Replies

373 Views

Last post by Graf Zahl
Mon Jun 25, 2018 12:13 am
Coop/DM games with custom skins

Last post by CD-Roman « Sun Jun 24, 2018 1:53 pm

by CD-Roman » Sun Jun 24, 2018 1:53 pm

0 Replies

255 Views

Last post by CD-Roman
Sun Jun 24, 2018 1:53 pm
Can't get 3D models to show up with Heretic!

Last post by Formic.Sapien « Wed Jun 20, 2018 5:49 am
Replies: 8
by Formic.Sapien » Sat Jun 16, 2018 12:43 am

8 Replies

1673 Views

Last post by Formic.Sapien
Wed Jun 20, 2018 5:49 am
another tech issue split

Last post by Graf Zahl « Tue Jun 19, 2018 12:14 am
Replies: 1
by raikosen » Mon Jun 18, 2018 6:24 pm

1 Replies

422 Views

Last post by Graf Zahl
Tue Jun 19, 2018 12:14 am
"***Fatal error***" with legacy branch

Last post by vanfanel « Mon Jun 18, 2018 1:07 pm
Replies: 14
by vanfanel » Fri Jun 15, 2018 6:06 am

14 Replies

1500 Views

Last post by vanfanel
Mon Jun 18, 2018 1:07 pm
Can not get alternative hud to work

Last post by wildweasel « Sun Jun 17, 2018 1:57 pm
Replies: 3
by erik9631 » Sun Jun 17, 2018 7:15 am

3 Replies

9958 Views

Last post by wildweasel
Sun Jun 17, 2018 1:57 pm

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