Red Hat Bugzilla – Bug 589320
Fujitsu T4215 Tablet PC + VGA + Fedora + X = issues
Last modified: 2011-06-27 12:06:54 EDT
Description of problem:
The problem is there exists a comedy of software all trying to accomplish similar tasks, but none seem to really take the cake. Specifically running my Fujitsu T4215 Tablet PC, here is certain functionality which does not work, or if it does, it doesn't work in a stable fashion:
Automatic Tablet Rotation:
(This is implemented by a 3rd party tools written by Robert Gerlach called 'fjbtndrv' which stands for Fujitsu Button Driver) It also makes the wacom tablet buttons work. This software contains a kernel module as well as a daemon for checking if events have occured and handing them off to the various components of X/Fedora to make things rotate/move/etc.. In a somewhat unrelated note it appears ubuntu has packaged this software into their repository.
Automatic VGA detection:
This just doesn't work, although it seems simple enough to implement, as xrandr seems to automatically notice VGA connections, it's just a matter of running something like:
xrandr --output VGA1 --mode 1024x768
on a new connection.
Tablet Rotation + Automatic VGA detection:
The two features together just -- do not -- work together. It causes various forms of badness/evil. Including black screens of evil, or stubborn stylus' (styli?) which either don't work properly, or don't go to the point on the screen where they have been pointed to.
lately xsetwacom set DEVICE-NAME xyDefault doesn't work anymore, and neither does xsetwacom set DEVICE-NAME rotate ROTATE-DIR is also doing nothing for me, rendering the above rotation useless when it does happen to rotate the screen. Since no output, or errors or otherwise are produced, I don't no what to do.
It also appears xsetwacom's developers are affiliated in some way I don't understand to Red Hat.
I would like to help fix these problems, as I am a competent C/C++ programmer, have the necessary hardware, and want it to work but I have never done this development before. Also I would like to learn to package the necessary software into the fedora repositories, as well as submit the GPL kernel module to the linux kernel.
Furthermore I think this code as well as code for other tablets should be merged because they clearly do similar things, and there is no reason to duplicate efforts.
Version-Release number of selected component (if applicable):
Latest of everything.
easily, all the time
Steps to Reproduce:
1. Get a Tablet PC, preferably fujitsu t4215 (easily found on ebay)
2. Install F12, fjbtndrv, and other wacom packages
3. insert vga cord into port, rotate, etc.
A borked machine, black screens etc.
A working machine
This doesn't sound like a wacomexpresskeys bug to me, it sounds like multiple bugs, against multiple components, and it all starts with an out-of-tree kernel driver, fjbtndrv, followed by either a kernel modesetting bug or an xorg driver bug. Reassigning over to kernel for now.
I agree, I wasn't sure where to put the bug(s). Hopefully someone can help me help you all.
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