Forum switched to read-only as of 2020/06/01
|Latest product reviews|
first step to get such a kernel would be to provide a dmesg and detailed specs of the tablet, then we could look at this and could try to find a config for it.
The following users say thank you to JochenKauz for this useful post:galgofa, user_m
Thank you for reply. Here is th dmseg and link to foum thread here.
You could always try our CM10.1 build. Only thing to change is the kernel.
To get a custom kernel running is a little bit more complicated. I will look at the dmesg above,.
But keep in mind, our CM10.1 does not need a custom kernel, it should run with every 3.0.8 stock kernel.
Problems are always, the touch and the sensors, but we could try to fix it. Yous should have a StockRFom for flashing back before you try this.
I try to build kernel for U9GTV from https://github.com/crewrktablets/rk30_kernel
Kernel build successful. And boot successful.
But... display not working... I can connect via adb.
And this tablet have it display.
Hmm... thats complicated.
Only to know the the real name of the display does not mean that the driver is working for it.
Looks interesting, I think that one of the parameters of the screen drivers is wrong.
Could you please upload the driver file, so I can look at the content?
The following users say thank you to JochenKauz for this useful post:vm03
I don't change it.
I can upload my diff's. But, I basically changed config, Kconfig's and Makefile's.
Would be nice to see your other changes..
Okay... I have looked at the driver and perhaps I have found your problem..
Look at the Line with:
#define H_FP 150
This is the right margin of your display, perhaps you can change it to higher or lower value and it helps.
hmm.. not easy I think.
what happens if you change the left offset of the screen (h_PB)?
I think this is a trial and error situation. There are a few parameters to play with..
screen->left_margin = H_BP;
screen->right_margin = H_FP;
screen->hsync_len = H_PW;
screen->upper_margin = V_BP;
screen->lower_margin = V_FP;
screen->vsync_len = V_PW;
I'm sorry that I can give no better advice, you are the only one who could play with this defines.
I created fork for my work on github. https://github.com/vm03/rk30_hd_308_kernel
Most Users Ever Online: 749
Currently Browsing this Page:
Devices in use: Desktop (108), Phone (7)
Guest Posters: 43
Moderators: globula_neagra, exelletor, JochenKauz, Oma7144, cracktech