** Description changed:
Binary package hint: linux-image-2.6-386
Hello!
I'm running Ubuntu Gutsy on a Dell Latitude D620 laptop with Intel
integrated video. See ddcprobe below.
X runs very well with the intel driver, although I'm using 915resolution
to get the native display resolution programmed into the video board
(1280x1024).
I've been trying for a week to get the same results in the console (or
at least more than VGA), with no success. I can't get intelfb to work (I
suspect vesafb is disabling it somehow, but I can't check until I
compile a new kernel, maybe later).
So I tried using the vesafb to get larger resolutions (1024x768), adding
this line (or similar) to the kernel parameters:
"video=vesafb:mtrr,ywrap,maxvf=60,[EMAIL PROTECTED] vga=0x317 hsync=60"
I've tried any combinations of the parameters, different resolutions,
bitdepths and refresh rates. It seems to work, according to the
messages, but all I get is a blank, black screen. X comes up normally
when the boot is over. I can switch back and forth between X and the
consoles, but the consoles are always blank.
$ fbset
mode "1024x768-76"
# D: 78.653 MHz, H: 59.949 kHz, V: 75.694 Hz
geometry 1024 768 1024 768 16
timings 12714 128 32 16 4 128 4
rgba 5/11,6/5,5/0,0/0
endmode
According to fbset the refresh rate is always set at 76 Hz, and I'm sure
the screen allows only 60 (or 70, maybe, but I don't think so). This is
not a problem, since it's an LCD.
I know people have been asking for higher refresh rates at boot for a
long time (for CRTs), so maybe this is what caused the change (it worked
in Dapper or Feisty, not sure which). Is there any way to get a lower
refresh rate (preferably without recompiling the kernel)? And is there
any way to detect laptops with such problems and fix it automatically?
$ sudo ddcprobe
vbe: VESA 3.0 detected.
oem: Intel(r) 82945GM Chipset Family Graphics Chip Accelerated VGA BIOS
vendor: Intel Corporation
product: Intel(r) 82945GM Chipset Family Graphics Controller Hardware Version
0.0
memory: 12288kb
mode: 1280x1024x256
mode: 1280x1024x64k
mode: 1280x1024x16m
mode: 1024x768x256
mode: 1024x768x64k
mode: 1024x768x16m
mode: 640x480x16m
mode: 800x600x64k
mode: 800x600x16m
mode: 640x480x256
mode: 800x600x256
mode: 640x480x64k
edid:
edid: 1 3
id: 3157
eisa: SEC3157
serial: 00000000
manufacture: 0 2005
input: analog signal.
screensize: 30 19
gamma: 2.200000
dpms: RGB, no active off, no suspend, no standby
dtiming: [EMAIL PROTECTED]
- monitorid: UD490141W1
- monitorid: '7?Og���
-
- $ lspci
- 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT
Express Memory Controller Hub (rev 03)
- 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML
Express Integrated Graphics Controller (rev 03)
- 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML Express
Integrated Graphics Controller (rev 03)
- 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 01)
- 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1
(rev 01)
- 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2
(rev 01)
- 00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3
(rev 01)
- 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1
(rev 01)
- 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2
(rev 01)
- 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3
(rev 01)
- 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4
(rev 01)
- 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
Controller (rev 01)
- 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
- 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge
(rev 01)
- 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial
ATA Storage Controller IDE (rev 01)
- 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev
01)
- 03:01.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus
Controller (rev 40)
- 09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit
Ethernet PCI Express (rev 02)
- 0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network
Connection (rev 02)
+ monitorid: UD490
** Tags removed: hardy-kernel-candidate
--
vesafb sets the refresh rate too high for some LCDs
https://bugs.launchpad.net/bugs/127168
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
