got 'X Error of failed request: BadShmSeg (invalid shared segment parameter)'

[xxfree86]

most x applications works fine with termux-x11 + proot-distro but when i try to run glxgears, ffplay, blender got error like this.

X Error of failed request: BadShmSeg (invalid shared segment parameter) Major opcode of failed request: 130 (MIT-SHM) Minor opcode of failed request: 3 (X_ShmPutImage) Segment id in failed request: 0x1400010 Serial number of failed request: 269 Current serial number in output stream: 270

These applications works in vncviewer but slow. :-/

any suggestion?

LG v50 sd855, android 12, proot-distro : ubuntu

[Suletta-Majo]

had same error me too. i am it posted reddit r/termux 'kivy' section reason i don't know i can't fix it too

i searched this MIT-SIM errors similer example ＞Major opcode of failed request: 130 (MIT-SHM) famous error and deep spaghetti reason. so i retire search :(

my error number 131. flet and kivy can't complete run simple samples yes errors include 'ffplay'

[twaik]

1. Are you using termux's Xwayland with proot apps? Proot's sysvipc implementation is incompatible with terrmux, I've got something like that while tried to use termux's x11vnc with prooted Xvfb.
2. Termux:X11 itself does not support any kind of GL, GLX, GLES, etc. But some users reported swrast and llvmpipe backends of mesa work (software rendering).

[xxfree86]

1. Are you using termux's Xwayland with proot apps? Proot's sysvipc implementation is incompatible with terrmux, I've got something like that while tried to use termux's x11vnc with prooted Xvfb.

I've try it according to the article in this link: https://udroid-rc.gitbook.io/udroid-wiki/udroid-landing/setting-up-gui/termux-x11

[twaik]

Try to install Xwayland inside proot and start termux-x11 from inside. I am not sure if udroid can start termux apps but proot-distro can.

[kde-yyds]

It seems that the Xwayland package is not built with glx support. After building and installing Xwayland with glx support, opengl programs will work (software renderer, of course).

[xxfree86]

installed mesa-demos package in termux with pkg install command and it's glxgears runs without error. avg 300fps.

[xxfree86]

Try to install Xwayland inside proot and start termux-x11 from inside. I am not sure if udroid can start termux apps but proot-distro can.

tried start termux-x11 inside proot but not working.

termux-x11 ended with 'killed.' message to console.

[twaik]

Killed message means there is a reason in logcat.

[twaik]

It should not find something because app_process is linked to bionic. Proot-distro allows to start programs outside a container.

[twaik]

termux-x11 ended with 'killed.' message to console.

Fixed.

[IntinteDAO]

installed mesa-demos package in termux with pkg install command and it's glxgears runs without error. avg 300fps.

You can always use mesa-zink (from TUR repository) to have hardware acceleration

[twaik]

Real hardware acceleration is not possible without using private APIs.

[IntinteDAO]

Real hardware acceleration is not possible without using private APIs.

Well - I'm talking about using a graphics card. With (relative) Vulkan support, you can use OpenGL on Vulkan - Zink.

Maybe the use of Turnip will improve Zink performance, we'll see.

[twaik]

Well - I'm talking about using a graphics card

I am talking about this too. Android restricts access to graphics card and does not have public API to access them directly. Even if Vulkan library has can work with real graphics card Vulka library on Android has no X11 support.

[Suletta-Majo]

https://www.reddit.com/r/termux/comments/uikny1/opengl_support_on_termux_x11/ mesa wayland with glx compile is this? hard mission for me :\ but wait. i feel user:itsfreepizza posted maybe very nice way for me. he meanings tigervnc-xorg-extension ? tigervnc-xorg-session can't find apt and internet web :/

[xxfree86]

--no-sysvipc option of the proot-distro script seems to bypass the BadShmSeg error.

[IntinteDAO]

mesa wayland with glx compile is this? hard mission for me :

@Suletta-Majo You have packages mesa-zink in TUR repository

[Suletta-Majo]

TURリポジトリにmesa-zinkパッケージがあります thank you i'll get

[ThatMG393]

@Suletta-Majo Check this out: https://github.com/ThatMG393/gpu_accel_termux

Only tested on Mali GPU's

[Suletta-Majo]

thanx info. out of topic little bit but this script looked include qualcomm SoC. nice :) myphone aquos wish2 ＞ Snapdragon 690 5G Adreno 619L

many Variety of GPU accel is work qualcomm chip https://www.reddit.com/r/termux/comments/10hu1x7/termux_prefix_with_preinstalled_ubuntu_2204_proot/ this comments says 'Virgl works well on Adreno 650 (Snapdragon 865)' maybe mine too :-)

[xxfree86]

most x applications works fine with termux-x11 + proot-distro but when i try to run glxgears, ffplay, blender got error like this.

X Error of failed request: BadShmSeg (invalid shared segment parameter) Major opcode of failed request: 130 (MIT-SHM) Minor opcode of failed request: 3 (X_ShmPutImage) Segment id in failed request: 0x1400010 Serial number of failed request: 269 Current serial number in output stream: 270

These applications works in vncviewer but slow. :-/

any suggestion?

LG v50 sd855, android 12, proot-distro : ubuntu

git cloned mesa-22.0.5 src, built and installed to /usr/local/lib in proot-distro and glxgear, ffplay, blender, glmark2 runs without error.

i don't know whats going on this but annoying error is gone.

[twaik]

So I can close this?

[xxfree86]

So I can close this?

of course. ;-)