My install of gzdoom is almost working on arch linux. The problem is that It shows only a half (top part) of the screen. It also flickers constantly between the normal rendering and some 45 degrees rotated and stretched version of the screen.
This is the output when running. May be it helps:
GZDoom g3.7pre-757-g40f77e5da-m - 2018-12-09 13:00:36 +0200 - SDL version
Compiled on Dec 9 2018
M_LoadDefaults: Load system defaults.
W_Init: Init WADfiles.
adding /usr/share/gzdoom/gzdoom.pk3, 635 lumps
adding /usr/share/gzdoom/zd_extra.pk3, 132 lumps
adding /home/erik/.config/gzdoom/DOOM.WAD, 2306 lumps
adding /usr/share/gzdoom/bd21RC3.pk3, 15042 lumps
adding /usr/share/gzdoom/bd21RC3.pk3:dmlevels.wad, 40 lumps
adding /usr/share/gzdoom/bd21RC3.pk3:psxlevels.wad, 42 lumps
adding /usr/share/gzdoom/bd21RC3.pk3:tanktest.wad, 8 lumps
adding /usr/share/gzdoom/bd21RC3.pk3:testmap.wad, 13 lumps
adding /usr/share/games/brutal-doom/DoomMetalVol4.wad, 64 lumps
I_Init: Setting up machine state.
CPU Vendor ID: GenuineIntel
Name: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
Family 6, Model 60, Stepping 3
Features: SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 HyperThreading
I_InitSound: Initializing OpenAL
Opened device JACK Default
EFX enabled
V_Init: allocate screen.
S_Init: Setting up sound.
ST_Init: Init startup screen.
Checking cmd-line parameters...
S_InitData: Load sound definitions.
G_ParseMapInfo: Load map definitions.
Texman.Init: Init texture manager.
Attempting to remap texture SKYHEL1 to non-existent lump SKYHEL2
Attempting to remap texture SKYEAR5 to non-existent lump SKYEAR5HD
Attempting to remap texture SKYIO1 to non-existent lump SKYIO1HD
ParseTeamInfo: Load team definitions.
LoadActors: Load actor definitions.
Bad hex number: no
script parsing took 465.19 ms
Unknown key "ZZ"
Unknown key "CC"
Brightmap 'brightmaps/doom/Monsters/ShotgunGuy/sposf2f8.png' not found in texture 'SPOSF2F8'
Brightmap 'brightmaps/doom/PI2FB0.png' not found in texture 'PI2FB0'
Brightmap 'brightmaps/doom/SHT8B0.png' not found in texture '(null)'
Brightmap 'brightmaps/doom/SHT8C0.png' not found in texture '(null)'
R_Init: Init Doom refresh subsystem.
DecalLibrary: Load decals.
DistX in slider decal Drops is unsupported
M_Init: Init menus.
P_Init: Init Playloop state.
Skin 'FTPL.png' not found in 'RedBloodFootPrintLeft'
Skin 'FTPR.png' not found in 'RedBloodFootPrintRight'
ParseSBarInfo: Loading custom status bar definition.
D_CheckNetGame: Checking network game status.
player 1 of 1 (1 nodes)
Using video driver x11
GL_VENDOR: X.Org
GL_RENDERER: AMD BONAIRE (DRM 2.50.0, 4.14.86-1-lts, LLVM 7.0.0)
GL_VERSION: 4.5 (Core Profile) Mesa 18.2.6 (Core profile)
GL_SHADING_LANGUAGE_VERSION: 4.50
Max. texture size: 16384
Max. texture units: 32
Max. varying: 128
Max. combined shader storage blocks: 40
Max. vertex shader storage blocks: 8
Resolution: 320 x 640
half screen and flickering
Moderator: GZDoom Developers
Forum rules
Contrary to popular belief, we are not all-knowing-all-seeing magical beings!
If you want help you're going to have to provide lots of info. Like what is your hardware, what is your operating system, what version of GZDoom/LZDoom/whatever you're using, what mods you're loading, how you're loading it, what you've already tried for fixing the problem, and anything else that is even remotely relevant to the problem.
We can't magically figure out what it is if you're going to be vague, and if we feel like you're just wasting our time with guessing games we will act like that's what you're really doing and won't help you.
Contrary to popular belief, we are not all-knowing-all-seeing magical beings!
If you want help you're going to have to provide lots of info. Like what is your hardware, what is your operating system, what version of GZDoom/LZDoom/whatever you're using, what mods you're loading, how you're loading it, what you've already tried for fixing the problem, and anything else that is even remotely relevant to the problem.
We can't magically figure out what it is if you're going to be vague, and if we feel like you're just wasting our time with guessing games we will act like that's what you're really doing and won't help you.
Re: half screen and flickering
Do you really use such resolution? Could you please start GZDoom with no mods and config file?Resolution: 320 x 640