Out of range mode with the LG Flatron LCD display

[Karvjorm]

I tried to install Haiku hrev51532-x86_gcc2_hybrid-anyboot.iso to an old Fujitsu Siemens SCA LEO 400 Desktop computer. The computer's processor is Intel Celeron and BIOS is Award Modular BIOS v6.00PG with the EnergyStar logo. The display of the desktop computer is LG's Flatron L1930SQ LCD.

I was able to boot this computer from the CD-ROM Drive, but the display was all the time showing me a 46.4kHz / 87Hz mode and "OUT OF RANGE" message. I tested this also with the hrev35928-x86_gcc2_hybrid-anyboot.img image and the behavior was the same.

Then I changed display to a very old HP L1520 display and I was able to boot Haiku hrev51532-x86_gcc2_hybrid-anyboot with two problems: Desktop was too large for the display (mode) and I got all the time an error message "PLEASE SETUP PC AT 1024X768 60HZ" at the topmost window.

After installation I started Haiku from the hard drive of the Fujitsu Siemens computer and all was the same with those two errors when I used the old HP display. Then I changed back to the LG Flatron display and got at first the same 46.4kHz / 87Hz message, but with the "POWER SAVING MODE" text. The display turned then black and after some seconds message changed to the previously shown "OUT OF RANGE" message.

Windows and Ubuntu can handle this OUT OF RANGE mode but Haiku cannot do it.

[Karvjorm]

LG's Flatron LCD display mode

[Karvjorm]

The topmost window when using my old HP display.

[waddlesplash]

Please do the following:

1. delete the contents of the /var/log/ directory
2. reboot into the monitor that does NOT work
3. attach the monitor that DOES work
4. grab the file /var/log/syslog and attach it to this ticket.

That will contain the graphics driver log, and hopefully it will clue us in as to why the wrong mode is being chosen here.

[Karvjorm]

I phase 3 the working display was black with a OUT OF RANGE message, so I had to boot system again with the working display.

[Karvjorm]

Sorry misspelling: In phase 3 ...

[Karvjorm]

I studied the menu items of the working display and found the following information:

OUT OF RANGE MODE INFO 640x 350 87Hz PRESET : 9 USER : 7

[Karvjorm]

PRESET : 9 means 1024x768 75Hz and USER : 7 is 1024 x 768 70Hz. Both are the "highest" mode combinations that this display can provide.

[waddlesplash]

KERN: video mode: 1280x1024x32

The kernel appears to have selected that mode, based on the DPMS information. Is that mode actually not supported by the monitor?

[Karvjorm]

Here is a page of the service manual from the address ​https://www.manualslib.com/manual/770966/Lg-L1730s-Fh.html#product-L1930SQ

[Karvjorm]

Sorry, previous link was to a wrong manual, the correct link is ​https://www.manualslib.com/download/846737/Lg-Flatron-L1930sq.html

[pulkomandy]

According to the specs I can find, this has an Intel i810 chipset. However the driver says that it did not detect it. Please include the output of listdev so we can see the PCI ID for the graphics card and see if maybe it is missing from our driver.

[korli]

[dom 0, bus  1] bus   1, device  0, function  0: vendor 1039, device 6325, revision 00
  class_base 03, class_function 00, class_api 00
  vendor 1039: Silicon Integrated Systems [SiS]
  device 6325: 65x/M650/740 PCI/AGP VGA Display Adapter (SiS 651 onboard [Asus P4SC-EA])

Isn't an intel chipset.