I have a white screen i dont know why

What operating system are you using? Are you sure you removed the old version of MCEF?

Im using Linux Debian on chromebook. Yes i removed the old version of MCEF

What CPU does your Chromebook use? Is it ARM based?

Im going to check

AMD64 i think

Are you using the vanilla launcher or a 3rd party one?

I first tested it with multimc but that didnt work so i tested it with the vanilla launcher and that also didnt work

Could you post the output of lscpu and also lspci?

Uh where can i find that in .minecraft?

You will have to run those commands in a terminal shell

christiaan@penguin:$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 39 bits physical, 48 bits virtual
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 122
Model name: 06/7a
Stepping: 8
CPU MHz: 1094.400
BogoMIPS: 2188.80
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 24K
L1i cache: 32K
L2 cache: 4096K
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave rdrand hypervisor lahf_lm 3dnowprefetch cpuid_fault ssbd ibrs ibpb stibp ibrs_enhanced fsgsbase tsc_adjust smep erms mpx rdseed smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves arat md_clear arch_capabilities
christiaan@penguin:$ lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma]
00:01.0 Unassigned class [ffff]: Red Hat, Inc Virtio console (rev 01)
00:02.0 Unassigned class [ffff]: Red Hat, Inc Virtio block device (rev 01)
00:03.0 Unassigned class [ffff]: Red Hat, Inc Virtio block device (rev 01)
00:04.0 Unassigned class [ffff]: Red Hat, Inc Device 105b (rev 01)
00:05.0 Unassigned class [ffff]: Red Hat, Inc Virtio RNG (rev 01)
00:06.0 Unassigned class [ffff]: Red Hat, Inc Virtio memory balloon (rev 01)
00:07.0 Unassigned class [ffff]: Red Hat, Inc Virtio network device (rev 01)
00:08.0 Unassigned class [ffff]: Red Hat, Inc Device 107f (rev 01)
00:09.0 Display controller: Red Hat, Inc Virtio GPU (rev 01)
00:0a.0 Unassigned class [ffff]: Red Hat, Inc Device 1053 (rev 01)
00:0b.0 Audio device: Intel Corporation 82801AA AC'97 Audio Controller
00:0c.0 USB controller: Fresco Logic FL1000G USB 3.0 Host Controller

Are you using a KVM virtual machine? Does your GPU have 3D acceleration? Its listed as a virtio GPU

I dont know. Where can i find it?

Do you mean this?

00:09.0 Display controller: Red Hat, Inc Virtio GPU (rev 01)

The info in lscpu and lspci leads me to believe you are running a virtual machine. Is this the case?

Do you mean this?

00:09.0 Display controller: Red Hat, Inc Virtio GPU (rev 01)

Yes also: Hypervisor vendor: KVM

When you enable linux in chrome os it makes a virtual machine to run linux apps and use the terminal

I wouldn't be able to support this setup unfortunately. Are you even able to play Minecraft?

Yes with 50-60 fps

Could you possibly post a tutorial you followed to get this working? Not super familiar with Chromebooks or Chrome OS

I have not followed a tutorial. I just downloaded forge for 1.12.2 and then webdisplay mod and MCEF but then it didn't work so I looked on the internet and saw this mod you made and wanted to test it only it was still white screen. Sorry if my english is bad.

Sorry, I don't think I can support this setup. I don't have access to a Chromebook nor do I believe it would work in a virtualized environment using virtio GPU drivers (which to my knowledge don't support opengl? at least not without major tweaks)

It may be possible to get it working with some tweaks but you'll have to be on your own.

Currently, MCEF supports (on native hardware, not virtualized):

Linux x64
Windows 10 x64
macOS x64

Aw man I wanted to do this mod with my friends