Ubuntu
xorg package

[i810] ddc sync ranges get lost in mode validation

Bug #12248 reported by Gustavo Franco on 2005-01-25

Affects		Status	Importance	Assigned to	Milestone
	xorg (Ubuntu)	Fix Released	Medium	Daniel Stone

Bug Description

Hi,

I'm sure that with xserver-xorg 6.8.1-1ubuntu9 it was working without
problems (I didn't downgraded everything to test again). With the
current configuration and xserver-xorg (hoary), it isn't displaying
1024x768 properly. It shows me 800x600 and when i try to switch to
1024x768 using ctrl + alt + - it show me everything (at 1024x768) using
aprox. a quarter of the screen.

There's only one video card and it's a IBM Netvista machine:

lspci output (video card only):
0000:00:02.0 VGA compatible controller: Intel Corp. 82845G/GL[Brookdale-G]/GE
Chipset Integrated Graphics Device (rev 01)

bits from Xorg.0.log (i'm attaching this file too):
[...]
(II) I810(0): BIOS now sees 8000 kB VideoRAM
[...]
(II) I810(0): Not using mode "1152x864" (no mode of this name)
(II) I810(0): Not using mode "1024x768" (no mode of this name)
(II) I810(0): Not using mode "832x624" (no mode of this name)
(II) I810(0): Not using mode "720x450" (no mode of this name)
(II) I810(0): Increasing the scanline pitch to allow tiling mode (800 -> 1024).
(--) I810(0): Virtual size is 800x600 (pitch 1024)
(**) I810(0): *Built-in mode "800x600"
(**) I810(0): *Built-in mode "640x480"
[...]

Let me known if you need more information.

Thanks in advance,
Gustavo Franco

Revision history for this message

Gustavo Franco (stratus) wrote on 2005-01-25:

Xorg log output Edit (202.6 KiB, text/plain)

Created an attachment (id=1148)
Xorg log output

Revision history for this message

Gustavo Franco (stratus) wrote on 2005-01-25:

My x.org config. file Edit (2.9 KiB, text/plain)

Created an attachment (id=1149)
My x.org config. file

Revision history for this message

Gustavo Franco (stratus) wrote on 2005-01-25:

ddcprobe output Edit (1.2 KiB, text/plain)

Created an attachment (id=1150)
ddcprobe output

Revision history for this message

Daniel Stone (daniels) wrote on 2005-01-27:

I think the problem here lies in the i830 VBE mode validation code, but it's a
pain to track down. Trying to grab an i845-based machine for a while.

Revision history for this message

Ollie Rutherfurd (orutherfurd) wrote on 2005-01-28:

I just did a dist-upgrade on hoary for the first time and now may be
experiencing this, too. When the machine first boots or gdm start, "this
resolution cannot be displayed" is displayed. If I switch to a tty (C+A+F2 - in
case my terminology is wrong), wait for a minute or two then A+F7, I get
graphics displayed -- but the resolution is much higher than it used to be. One
thing that may or may not be related is that I can't launch the "Screen
Resolution" app, here's the error message I get:

BadImplementation (server does not implement operation)'.
(Details: serial 79 error_code 17 request_code 157 minor_code 5)

This too, used to work.

I'll attach my Xorg.0.log and ddcprobe output, in case they're useful.

Revision history for this message

Ollie Rutherfurd (orutherfurd) wrote on 2005-01-28:

Xorg.0.log (from orutherfurd at gmail dot com) Edit (71.5 KiB, text/plain)

Created an attachment (id=1194)
Xorg.0.log (from orutherfurd at gmail dot com)

Revision history for this message

Ollie Rutherfurd (orutherfurd) wrote on 2005-01-28:

ddcprobe output (for orutherfurd at gmail dot com) Edit (991 bytes, text/plain)

Created an attachment (id=1195)
ddcprobe output (for orutherfurd at gmail dot com)

Revision history for this message

Daniel Stone (daniels) wrote on 2005-01-28:

*** Bug 12340 has been marked as a duplicate of this bug. ***

Revision history for this message

Daniel Stone (daniels) wrote on 2005-01-28:

*** Bug 12333 has been marked as a duplicate of this bug. ***

Revision history for this message

Daniel Stone (daniels) wrote on 2005-01-31:

#10

*** Bug 12355 has been marked as a duplicate of this bug. ***

Revision history for this message

Daniel Stone (daniels) wrote on 2005-02-06:

#11

Can one of you guys please send your log from sudo Xorg :1 -ac -logverbose 999,
running 6.8.1-1ubuntu9?

Revision history for this message

Gustavo Franco (stratus) wrote on 2005-02-06:

#12

(In reply to comment #11)
> Can one of you guys please send your log from sudo Xorg :1 -ac -logverbose 999,
> running 6.8.1-1ubuntu9?

Hi DanielS,

I can do it thursday (i'll be out of office until then) but i'm not sure how to get
*ubuntu9, is there anything like snapshot.debian.net for ubuntu? I can see only
*ubuntu11 and *ubuntu15 at archive.ubuntu.com.

Thanks,
Gustavo Franco

Revision history for this message

Daniel Stone (daniels) wrote on 2005-02-06:

#13

Thanks a lot.
http://morgue.ubuntu.com/2005-01-14/xserver-xorg_6.8.1-1ubuntu9_i386.deb

Revision history for this message

Ollie Rutherfurd (orutherfurd) wrote on 2005-02-06:

#14

/var/log/Xorg.1.log from running "sudo Xorg :1 -ac -logverbose 999" w/6.8.1-1ubuntu9 Edit (8.6 KiB, application/x-gzip)

Created an attachment (id=1283)
/var/log/Xorg.1.log from running "sudo Xorg :1 -ac -logverbose 999"
w/6.8.1-1ubuntu9

Hi,

Attached is /var/log/Xorg.1.log from running "sudo X0org :1 -ac logverbose 999"
w/6.8.1-1ubuntu9.

-Ollie

Revision history for this message

Daniel Stone (daniels) wrote on 2005-02-09:

#15

*** Bug 12616 has been marked as a duplicate of this bug. ***

Revision history for this message

Daniel Stone (daniels) wrote on 2005-02-10:

#16

*** Bug 12692 has been marked as a duplicate of this bug. ***

Revision history for this message

Daniel Stone (daniels) wrote on 2005-02-10:

#17

*** Bug 12762 has been marked as a duplicate of this bug. ***

Revision history for this message

Matt Zimmerman (mdz) wrote on 2005-02-28:

#18

Is this bug still in need of information?

Revision history for this message

Eamonn Sullivan (eamonn-sullivan) wrote on 2005-03-05:

#19

Array CD 6 fixed this problem for me on i810/HP Vectra.

Revision history for this message

Daniel Stone (daniels) wrote on 2005-03-11:

#20

Gustavo, have any later versions fixed this for you?

Revision history for this message

Gustavo Franco (stratus) wrote on 2005-03-11:

#21

Daniel, hoary preview release live cd is working well for me,
on a non-ubuntu desktop with i810 video driver. I'll be able to test
on that machine where i saw the bug for the first time in monday.

Revision history for this message

Daniel Stone (daniels) wrote on 2005-03-15:

#22

Huzzah! Also:
CVSROOT: /cvs/xorg
Module name: xc
Changes by: <email address hidden> 05/03/15 03:32:10

Log message:
  2005-03-15 Alan Hourihane <email address hidden>
        * programs/Xserver/hw/xfree86/drivers/i810/i830_driver.c
        * programs/Xserver/hw/xfree86/drivers/i810/i830_modes.c
        Enforce DDC monitor ranges usage if we have them and reject bad
        modes. Use NoDDC option to override DDC timings. We currently
        only use DS_RANGES, but could use other DDC information, as does
        the common layer, to deduce the h/v ranges.

Modified files:
      ./:
        ChangeLog
      xc/programs/Xserver/hw/xfree86/drivers/i810/:
        i830_driver.c i830_modes.c

  Revision Changes Path
  1.812 +9 -1 xc/ChangeLog
  1.12 +102 -57 xc/programs/Xserver/hw/xfree86/drivers/i810/i830_driver.c
  1.4 +1 -1 xc/programs/Xserver/hw/xfree86/drivers/i810/i830_modes.c

Revision history for this message

Daniel Stone (daniels) wrote on 2005-03-16:

#23

xorg (6.8.2-4) hoary; urgency=low

  * Fix additional security vulnerability in Xpm's bitmap_unit checking
    (closes: Ubuntu#7433, fdo#1920).
  * Remove mac-usb- prefix from d-i keyboard mappings before we run our
    detection routine (partially mitigates Ubuntu#7138).
  * Move mkfontscale from xbase-clients to xutils, as it does not depend on
    client-side X libraries, and mkfontdir from xutils was entirely reliant
    on mkfontscale (closes: Ubuntu#7391).
  * Add Swiss keymaps, thanks to Sylvain Pasche (closes: Ubuntu#7482).
  * Update i810 driver from HEAD, which now finally has support for validating
    modes against DDC ranges, and supports panels on pipe A (closes:
    Ubuntu#5864, Ubuntu#6973).

-- Daniel Stone <email address hidden> Fri, 11 Mar 2005 12:53:55 +1100