Hello All, I have been struggling for a long while to get the display working on my Kohjinsha E9 Notebook. It's a Geode LX 500Mhz with a 1024x600 TFT panel. It works in Windows XP.
I have not been able to get the device to work in Linux and I have scowered the internet for a mode line that will work. I have tried to use PanelMode option as well, but it appears I need the right specs for my LCD panel before I proceed. My question at this time is this, How do I identify my panel? With no Refersh rate or HorizSync in xorg.conf the system is not identifying the modes that are supported. I've tried various versions for other 1024x600 display's I've found on the internet and had no joy. On a Geode how do you do a obtain the EDID data for the TFT Panel? I will provide any other data on request. Your support will be appreciated. Luke ---------- [ Original Message ] ---------- Subject: Kohjinsha E9-Korea(SA5) linux video custom panel support (to England support) I forwarded this. It only went to Singapore. Can you please make sure the support Engineers in Japan get this or provide assistance if you know how. Most of the Geode based notebooks (SA series) you sell will have similar problems with Linux. I know that there is many Linux enthusiasts i the UK and Geode has many performance advantages on linux (it was originally designed as a thin client system). ---------- [ Original Message ] ---------- Subject: Kohjinsha E9-Korea(SA5) linux video custom panel support Date: Sat, 16 May 2009 13:04:52 +0900 From: "MCKEELUKELEDGERD" <[email protected]> To: <[email protected]>, Hello Kohjinsha Support (re-circulate worldwide please), I have owned a E9 now for a while. However I have NEVER got video working in Linux, which is by far the best operating system for a Geode when it comes to performance. Product Page: http://www.kohjinsha.co.kr/notebook/notebook_02.php?s_pseq=245 I have got myself a copy of the AMD vendor (confidential) "AMD Geode™ LX Processor Windows® XP Display Driver Customization Guide" Publication ID: 40283B . The information to get the Panel working in Linux, such as the "Modeline" and Display driver "PanelMode" option is not available, so the LCD will shutdown and go white. I know the LCD panel provided does not work at 60HZ and it is non-standard based on the windows inf driver file records shown below. To make your TFT panel work in Linux, it needs the same custom configuration information. The Kohjinsha driver website's "unsupported" Linux drivers only include the same downloads from AMD, that is why this doesn't work. Extract from Windows driver inf: [LX_SoftwareDeviceSettings] HKR,, InstalledDisplayDrivers, %REG_MULTI_SZ%, GeodeLX HKR,, VgaCompatible, %REG_DWORD%, 0 HKR,, MultiFunctionSupported, %REG_DWORD%, 1 HKR,, Compression, %REG_DWORD%, 1 HKR,, FBLinear, %REG_DWORD%, 1 HKR,, DDCEnabled, %REG_DWORD%, 1 HKR,, DDC_GPIOData, %REG_DWORD%, 4 HKR,, DDC_GPIOClock, %REG_DWORD%, 3 HKR,, EnablePanelScale, %REG_DWORD%, 1 HKR,, CustomFileSize, %REG_DWORD%, 0 HKR,, PanelFile, %REG_SZ%, "\SystemRoot\system32\lx_1024x600_custom-7.out" HKR,, PanelFileSize, %REG_DWORD%, 176 HKR,, PanelEnable, %REG_DWORD%, 1 HKR,, BIOSDetectOutput, %REG_DWORD%, 0 HKR,, PanelInSystem, %REG_DWORD%, 1 HKR,, EnableNon60HzPanel, %REG_DWORD%, 1 HKR,, SimultaneousCRT, %REG_DWORD%, 0 So I know you Kohjinsha is in possession of a file "lx_1024x600_custom-7.inf" that was used to configure the driver. Can you please provide me 1) This file OR 2) Full specifications and model name of the TFT panel, or a data sheet for it OR 3) An xorg.conf file that is known to work. Note I have been reading there is a recent Linux driver bug with the CS65535 companion chip that stops DCC /EDID from properly working. From what I have read about Kohjinsha BIOS's you don't get many specifications right in ROM, such as the battery capacity etc, so it's best to get the specifications for the hardware and configure manually. My Linux configuration works when using the VGA output only. Also thanks for your vendor Dialogue technologies who gave me the Windows XP Tablet PC driver (custom) that allows me to have handwriting recognition on my UMPC. You should request this to put on your website, as it is a huge improvement over plain old windows XP home. This email has been forwarded to the Linux driver mailing list, to see if there are any other ways (through SW/Hardware interrogation to find the specifications of the LCD panel you use. Your reply will be re-posted on the geode driver mailing list so other users in future wont come forward with similar questions. ;) Cheers, Luke McKee Network Engineer skype:hojuruku _______________________________________________ Xorg-driver-geode mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-geode
