Toshiba resolution EDID fix

[Demon Lord]

I am the proud owner of a Toshiba Satellite 5100, with a nice 1600x1200 display and a GeForce 440 Go. After many years of EDID hacks and workarounds to have full resolution, I noticed the "CustomEDID" option so I decided to give it a try.

I successfully managed to get rid of custom modelines and timing/EDID options in my Xorg config file by using a custom EDID file. You'll need this Windows program (very simple, works fine with Wine) Phoenix EDID Designer (http://www.tucows.com/preview/329441).

Here's how:
1) Start X with level 6 verbosity:
# X -logverbose 6
2) Kill X
3) Look for raw EDID bytes in the log file:

(--) NVIDIA(0): Raw EDID bytes:
(--) NVIDIA(0):
(--) NVIDIA(0):   00 ff ff ff ff ff ff 00  3a c4 00 04 00 00 00 00
(--) NVIDIA(0):   2d 0c 01 03 80 20 18 00  ea a8 e0 99 57 4b 92 25
(--) NVIDIA(0):   1c 50 54 00 00 00 01 01  01 01 01 01 01 01 01 01
(--) NVIDIA(0):   01 01 01 01 01 01 48 3f  40 30 62 b0 32 40 4c c0
(--) NVIDIA(0):   13 00 42 f3 10 00 00 1e  00 00 00 fc 00 4e 76 69
(--) NVIDIA(0):   64 69 61 20 44 65 66 61  75 6c 00 00 00 fc 00 74
(--) NVIDIA(0):   20 46 6c 61 74 20 50 61  6e 65 6c 00 00 00 00 fd
(--) NVIDIA(0):   00 00 3c 1d 4c 11 00 00  20 20 20 20 20 00 00 9c
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
(--) NVIDIA(0):   00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00

Save the first 8 lines (the ones that aren't filled with zeroes) in the following format (spacing and capitals are important!), making sure you have Windows end-of-lines and a blank line in the end:

EDID BYTES:
0x   00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
    ------------------------------------------------
00 | 00 FF FF FF FF FF FF 00 3A C4 00 04 00 00 00 00
10 | 2D 0C 01 03 80 20 18 00 EA A8 E0 99 57 4B 92 25
20 | 1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
30 | 01 01 01 01 01 01 48 3F 40 30 62 B0 32 40 4C C0
40 | 13 00 42 F3 10 00 00 1E 00 00 00 FC 00 4E 76 69
50 | 64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 74
60 | 20 46 6C 61 74 20 50 61 6E 65 6C 00 00 00 00 FD
70 | 00 00 3C 1D 4C 11 00 00 20 20 20 20 20 00 00 9C

4) Open the EDID editor and load the data file you just made. If it fails to open, make sure your format is exactly the same as above.
5) Click on the pencil icon to make the file editable and open up the last tab (Detailed Timings). The first block option should contain your display configuration.
6) The display incorrectly reported a maximum resolution of 1588x1200 pixels, so I changed the H. Active Pxl value to 1600, and, since I added 12 more pixels, I removed them from H Blank, from 572 to 560.
7) Save the file, and strip back the headers to:

00 FF FF FF FF FF FF 00 3A C4 00 04 00 00 00 00
2D 0C 01 03 80 20 18 00 EA A8 E0 99 57 4B 92 25
1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 48 3F 40 30 62 B0 32 40 4C C0
13 00 42 F3 10 00 00 1E 00 00 00 FC 00 4E 76 69
64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 74
20 46 6C 61 74 20 50 61 6E 65 6C 00 00 00 00 FD
00 00 3C 1D 4C 11 00 00 20 20 20 20 20 00 00 9C

8) Compile the following and run your data file through it:

#include <stdio.h>

int main()
{
  while (!feof(stdin))
  {
    unsigned char i;
    scanf("%02X ", &i);
    printf("%c", i);
  }
  return 0;
}

# gcc comp.c -o comp
# ./comp < custom_edid.dat > custom_edid.bin

This should get you a 128 bytes file
9) Move this file somewhere safe and add this option to the Device section of your config file:

Option "CustomEDID" "DFP-0:/path/to/file/custom_edid.bin"

10) Remove any custom EDID configuration you might have added in the past, and X should now work...

[macemoneta]

Are you able to get the 9629 driver working? It just generates a kernel Oops on my 5105 (US version of the 5100) when X starts.

[Demon Lord]

Yes, I'm on 9629 right now (compiled from source, SourceMage Linux).

[macemoneta]

One of the interesting variation Toshiba produced no doubt. I have two 5105-s607, same BIOS levels, same video BIOS, same GeForce 440 Go, same FC6 software and software levels, same Nvidia driver. Yet the two are subtly different in their video handling.

Unfortunately, both also cause any driver in the 9xxx series to cause a kernel Oops as soon as X is started (no errors in the Xorg log).

Out of curiosity what does your '/proc/driver/nvidia/cards/0' file show:

$ cat /proc/driver/nvidia/cards/0
Model: GeForce4 440 Go
IRQ: 5
Video BIOS: 04.17.00.26.a6
Card Type: AGP
DMA Size: 32 bits
DMA Mask: 0xffffffff

[macemoneta]

Nevermnd; the new 9631 driver has corrected the problem.

[Demon Lord]

Model:           GeForce4 440 Go
IRQ:             5
Video BIOS:      04.17.00.41.c5
Card Type:       AGP
DMA Size:        32 bits
DMA Mask:        0xffffffff

By the way, is there a way to use an equivalent CustomEDID option in the Windows driver? I'd like to have my full resolution for the first time since the 60.00 era...

[Falkon]

Windows can't even handle my Toshiba HDTV with DVI->HDMI. I never even get a display.

[Nuke-Refugee]

One big THANK YOU to you!!
It's been MONTHS since my 3D stopped working after an update on my laptop and I had to use the nv driver... Now the problem is solved! I'm going to save that custom edid file & bookmark this thread for futures reference.

Thanks a lot!

Seb.

[uranusi]

I am using a 5105-s501.
I have worked on this problem for many years too.
Thanks god , you saved my life!

Here is my fixed edid file for 5105-s501, you can copy or type the code below to a bin file with a HEX editor.
Becarful, the size of the file have to be 128 byts.

00 FF FF FF FF FF FF 00 3A C4 00 03 00 00 00 00
2D 0C 01 03 80 20 19 00 EA A8 E0 99 57 4B 92 25
1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 30 2A 78 3C 51 1A 10 40 4C 70
13 00 42 F6 10 00 00 18 00 00 00 FC 00 4E 76 69
64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 74
20 46 6C 61 74 20 50 61 6E 65 6C 00 00 00 00 FD
00 00 3C 1D 41 0B 00 00 20 20 20 20 20 00 00 B2

[HeSaid]

Thank you, uranusi.
Your custom edid worked great for me!!

[tinetof]

Thanks for your thread.

My GeForce 6200 was not able to work in full HD (1080i) on the Toshiba 42WLG66 TV.

Finally, this is due to an incorrect EDID data (vertical refresh). What I had to do was very simple (it was not necessary to edit EDID data):
in the Monitor section of xorg.conf, the three lines are necessary to add:
HorizSync 15.0 - 46.0
VertRefresh 49.0 - 122.0
Option "UseEdidFreqs" "false"

And now this works, I post this reply if anyone has the same issue again.

[mmejia]

OMG!! thank you so much!!
I have Ubuntu feisty in a toshiba satellite 2410 with geforce4 420 go, your solution works great with 1.0.9631. Here is my custom edid that i made I hope it to be usefull for someone.