Arch Linux

skottish

Forum Fellow

From: Here

Registered: 2006-06-16

Posts: 7,942

Need help setting up a VESA modeline [SOLVED]

I just acquired a netbook with an Intel graphics card that no Intel driver works with (Poulsbo). Ouch. So now I'm attempting to use the vesa driver. Here's the important bits:

(II) VESA(0): EDID vendor "AUO", prod id 8284
(II) VESA(0): Printing DDC gathered Modelines:
(II) VESA(0): Modeline "1366x768"x0.0   72.00  1366 1414 1446 1494  768 771 777 803 -hsync -vsync (48.2 kHz)

As everyone can see, there is an existing VESA mode for the card. But, X can't auto-configure it, nor can I get a good setup in xorg.conf. This is the most recent attempt:

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
EndSection

Section "Device"
    Identifier  "Card0"
    Driver      "vesa"
    VendorName  "Intel Corporation"
    BoardName   "System Controller Hub (SCH Poulsbo) Graphics Controller"
    BusID       "PCI:0:2:0"
EndSection

Section "Monitor"
    Identifier   "Monitor0"
    VendorName   "Monitor Vendor"
    ModelName    "Monitor Model"
    Option      "DPMS"
    ModeLine    "1366x768_60"  72.00  1366 1414 1446 1494  768 771 777 803  -hsync -vsync
EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Card0"
    Monitor    "Monitor0"
    DefaultDepth 24
    SubSection      "Display"
        Viewport    0 0
        Depth       24
        Modes       "1366x768_60"
    EndSubSection
EndSection

I've tried all sorts of different stuff from no xorg.conf, to preferred modes, dedicated mode section, using the output from gtf, dropping the '_60', adding @60 instead, guessing other vsync values, capitalizing VS and HS, writing a xf86-video-vesa-git PKGBUILD... All of them result either in X complaining about no mode by that name and falling back to 1024x768 or no devices found. Any ideas?

skottish

Forum Fellow

From: Here

Registered: 2006-06-16

Posts: 7,942

Re: Need help setting up a VESA modeline [SOLVED]

Well, I've been fighting to get this stupid GPU to a usable state for days. In the process I found out that both the intelfb and uvesafb drivers are far superior to the vesa driver. But, that still leaves me with a problem. How do I get the system to recognize the monitor's 1366x768 resolution? Certainly there has to be a way.

vacant

Member

From: downstairs

Registered: 2004-11-05

Posts: 816

Re: Need help setting up a VESA modeline [SOLVED]

Does 1280x768 work?

From this page on 1366x768

"Standard EDID codes dont exist for 1366 x 768 resolution ...
causing lots of angst when people buy a 1366x768 panel and try to hook it up with VGA connector to a PC or a game machine, to find that 1280x768 is really the only clean resolution they get, and pushed to 1366, everything is rather blocky/blurry... doesnt look right.

Last edited by vacant (2009-06-13 21:46:45)

skottish

Forum Fellow

From: Here

Registered: 2006-06-16

Posts: 7,942

Re: Need help setting up a VESA modeline [SOLVED]

Thanks for the reply.

A lot of people are either going with 1360x768 or 1368x768. They don't work. I've tried 1280x768 and it doesn't work. No matter what I try, no matter which driver that I use, it falls back on 1024x768.

I still feel like that there's something to be done though. This line from above suggests to me that it may be possible:

(II) VESA(0): Modeline "1366x768"x0.0   72.00  1366 1414 1446 1494  768 771 777 803 -hsync -vsync (48.2 kHz)

There is another option, but so far I haven't had any luck. There's an existing driver for this card and Ubuntu, Suse, and Fedora, have it. The trouble comes from Arch's newness in everything. I've had no luck compiling any of the parts. If anyone is interested, these are the files in Ubuntu's repo (minus the binary blob for the 3D drivers):

http://ppa.launchpad.net/ubuntu-mobile/ … el-source/

Given a choice though, I'd much rather just use Arch software and forget about 3D for now.

skottish

Forum Fellow

From: Here

Registered: 2006-06-16

Posts: 7,942

Re: Need help setting up a VESA modeline [SOLVED]

Bump...

I hacked 915resolution to recognize the GMA500 (Poulsbo). I now have 1366x768 running under uvesafb. This will work until Intel gets a better driver together or the xf86-video-psb driver is in better shape.