Only Black Screen when using Framebuffer for Display #45
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HTC Evo 4G LTE S-OFF/Unlocked/Rooted JellyBean Bad Seed Tranquility Rom. Installed Kali armhf no problem, works great through VNC. Framebuffer gives same thing, black screen with hard keys lit. Tried Framebuffer 0,1,2 and video device /dev/graphics/fb0 and 1. Tried XFCE as well as GNOME. GUI by Xserver doesnt seem to bring anything up graphically. Tried installing as an Image file and then now using a dedicated ext4 partition on /dev/block/mmcblk1p3... Runs really fast through VNC though! Unsure how to proceed... Going to try this whole setup on my HTC Evo 4G as well and see what I get. Any ideas would be helpful! Want to see my pretty Kali desktop on my phone screen So I can control it from the phone. Thanks so much!!!! |
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In the meantime, I am able to use the Android VNC client to VNC to localhost and manipulate the GUI flawlessly! |
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I’m sorry for my bad English. Framebuffer tested on Samsung Galaxy S2 and Debian. On other devices (e.g. Asus TF201) were spotted problems. Try for test framebuffer (in Android console): |
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It seemed to run a little bit of noise down the screen a few times, then gave the following error message: I included a screenshot. I note, Kali is based on debian so I am hoping that if we can just figure out the device's framebuffer situation, we should be good to go. I thank you for your time and hope that I am being of some help to you and to the forum folks here in getting framebuffer working on more devices. You are the only developer attempting this on the linux chroot stuff, and it is really great! Thank you and let me know what you think about the above. I did want to ask, can i have the framebuffer and the vnc access at the same time, the Original Poster in this thread was asking too. vnc is working great and i am not sure if i really need framebuffer since RealVNC for android to the localhost (kali) is working flawlessly. But I am interested in learning how to get it framebuffer/directly, since learning is the point of all of the stuff we do right? :) thanks |
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It also doesn't work on Nexus 7 (stock rooted 4.2.2) and Xperia ray (FXP CM 10) @meefik do you have any plan to port Xsdl to android? seems it's the best way to use GUI. vnc is slow and doesn't support Xkb/Xrandr extension, framebuffer is not compatible with many devices. Xsdl is very fast. |
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I do not understand how to run Xsdl under Android. I'm studying this question. Any ideas? |
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This commit contains kdrive-xsdl. Seems Xsdl is a very experimental feature, but I remember it works. Port SDL application to Android is quite easy, see libsdl.org for details. |
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@meefik curious if there has been any movement on this? I have a Samsung GS3 and have the same issue. VNC is okay but there is some lag, just vnc no fault of your own. |
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You have just one step reaching the success: |
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Didn't work for me on HTC evo 4g lte s-off rooted with badseed tranquility jellybean Rom Still using vnc ----- Reply message ----- ln -s /dev/graphics/fb0 /dev/fb0 — |
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Maybe you can simply use: or take two steps procedure:
On Mon, Oct 14, 2013 at 3:50 AM, melt7777 notifications@github.com wrote:
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I encounter the same problem in my new phone, now I see your problem @melt7777 |
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Yes, lots of updates later, this issue still exists on my device. Still a very powerful app and the developer is great! Can't wait until we can figure this out. First option above hasn't worked for me, I will report if the other two ideas work. |
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Have you tried to start Xorg by handle? Using command: |
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for my device, the framebuffer can be controlled from rooted adb shell; e.g. does change what is displayed on the screen. But running Debian with FB fails. Is there some way to understand what went wrong? Update same command running form Update: this can be found in |
ghost
mentioned this issue
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felonwan,My phone is XiaoMi |
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mionec1, |
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meeflk,I want to start Xorg by handle,I use this command: |
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Please, try to reproduce the bug on the latest LD version. |
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Looks like the bug was fixed in the latest version. |
I'm having trouble getting the framebuffer option to work. My phone only displays a black screen and my tablet usually does the same (usually the menu bar at the bottom goes away and then comes back), although it occasionally displays the desktop and then freezes and turns black after switching apps. Where tablet's menu bar is (with back, home, etc buttons), the image is distorted. The back and home buttons can still be pressed through the screen (the framebuffer mode uses the whole screen and covers them). Both devices I used clean installs of Ubuntu quantal with armhf and installed xserver-xorg-input-mtrack. xinit xserver-xorg xserver-xorg-video-fbdev xserver-xorg-input-evdev are all installed. Frame Buffer settings are Display 2, Video device /dev/graphics/fb0, Input device /dev/input/event2.
With debugging messages enabled in Linux Deploy, after <<< end: start, it displays some of the Xorg.2.log and after the "Initializing built-in extension..." messages, the last thing it says is "Loading extension GLX".
I tried Ubuntu precise, armhf and Ubuntu quantal, armel on my tablet as well.
Also, it skips the Frame Buffer part (Frame Buffer... skip) if VNC is enabled, even if Frame Buffer is checked in the Properties menu.
Here's the /var/log/Xorg.2.log from each device:
LG Optiums G -- Black Screen
Samsung Galaxy Note 10.1 -- Black Screen or Desktop that Freezes
I love the app though.
Thanks!!
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