Jump to content
LaptopVideo2Go Forums

black bars for all


Recommended Posts

Here's what I found searching the net...

From http://www.janerob.com/rob/ts5100/index.shtml

begin quote:

On some variations of this laptop users have reported to me some problems under X. Alan Danziger (Toshiba 5105-S901) needed

Options "IgnoreEdid" "true"

in the XF86Config-4 file, while Steve Dean (Toshiba 6100) reported a black line on the right side of the display, and worked out that he needed to modify os-registry.c in the Nvidia kernel driver to have

Vreg_SoftEDIDs = 0 (disable checking - default was 1)

NVreg_Mobile = 2 (non-Compal Toshiba - default was ~0)

in order to get the full 1600x1200.

Your mileage may vary.

end quote.

:) corrected link , one ")" too much, thnaks though; could not resist :)

Edited by dontknow
Link to post
Share on other sites

Right, 0/2 is your only possible working combination. I bet you'll never get SoftEDIDs to work on a non-compal Toshiba. This is due to the way Toshiba works things. Thus all non-compal Toshiba's all have valid EDID data in their displays.

Makes you wonder why the drivers are broken. Getting bad EDID, not attempting EDID...

Link to post
Share on other sites
I bet you'll never get SoftEDIDs to work on a non-compal Toshiba. This is due to the way Toshiba works things. Thus all non-compal Toshiba's all have valid EDID data in their displays.

I'm ashamed to ask...feel ignorant, but what's exactly the "meaning" of SoftEDIDs? 1-> guess/lookup in code's data, 0->get from panel?

not attempting EDID...

There is one BIOS setting that looks related to this hypothesis: "Skip DDC Monitor Detection". It's in the group "BOOT screen display information".

In my BIOS it's enabled, that is it skips detection.

Just one more observation off-topic: in the Toshiba section Pieter summarized by observing an emergent pattern: 19V laptops have fewer problems than 15V laptops. Looking at a comparison grid (attached), one rule is that if one has a black bar, then one has a 15V supply and (either a 420Go or a 440Go). Too bad that we're mssing some important values which could refute it, such as the GPU of Guest equipped with a 2410-404, or thosch's GPU and voltage. Most GPU are in fact 420Go; we're missing data.

Edited by ministeve
Link to post
Share on other sites

SoftEDIDs = 1 means read the EDID from the video BIOS from a table. For your Toshiba this value doesn't matter. Toshiba's will usually fail if this value was read. If it does work then it was lucky enough to pick up the right EDID. Mobile set to 2 or 4 (depending on Toshiba type) is an attempt to read the EDID from the LCD based on the way non-compal Toshiba does things.

As for "Skip DDC Monitor Detection"... I can't truly say this is what it means. I'd hope the author of the BIOS editor knows what he is doing when he puts it there. But it sounds like he is trying to say don't display the debug information to the screen. I just know your BIOS is fine.

I agree with the power supply notes you are missing more comparative data. I don't know the whole run down for the comparison. But take note not all Toshiba's are created equal. As in you need to identify non-compal vs compal Toshiba's. Those two groups are different. -- I don't know if their detection method is truly different.

Link to post
Share on other sites
Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...