No /proc/acpi/video in Clevo M860TU

[José Pedro Saraiva]

I own a Clevo M860TU with a nVidia 9800 GT and I get no /proc/acpi/video (empty directory) in Intrepid. As a result my display cannot respond to state changes nor brightness hotkeys, this is particularly upsettings since I can't get any console terminals (outside X).

$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation Device 060b (rev a2)
06:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN [Shiloh] Network Connection
07:00.0 FireWire (IEEE 1394): JMicron Technologies, Inc. IEEE 1394 Host Controller
07:00.1 System peripheral: JMicron Technologies, Inc. SD/MMC Host Controller
07:00.2 SD Host controller: JMicron Technologies, Inc. Standard SD Host Controller
07:00.3 System peripheral: JMicron Technologies, Inc. MS Host Controller
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)

# Extract from /var/log/Xorg.0.log
(II) NVIDIA(0): Creating default Display subsection in Screen section
 "Default Screen" for depth/fbbpp 24/32
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Option "NoLogo" "True"
(**) NVIDIA(0): Enabling RENDER acceleration
(II) NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
(II) NVIDIA(0): enabled.
(II) NVIDIA(0): NVIDIA GPU G92-600 (G92) at PCI:1:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 524288 kBytes
(--) NVIDIA(0): VideoBIOS: 62.92.34.00.18
(II) NVIDIA(0): Detected PCI Express Link width: 16X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on G92-600 at PCI:1:0:0:
(--) NVIDIA(0): CMO (DFP-0)
(--) NVIDIA(0): CMO (DFP-0): 330.0 MHz maximum pixel clock
(--) NVIDIA(0): CMO (DFP-0): Internal Dual Link LVDS
(II) NVIDIA(0): Assigned Display Device: DFP-0
(==) NVIDIA(0):
(==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
(==) NVIDIA(0): will be used as the requested mode.
(==) NVIDIA(0):
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0): "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 1680 x 1050
(--) NVIDIA(0): DPI set to (129, 133); computed from "UseEdidDpi" X config
(--) NVIDIA(0): option
(==) NVIDIA(0): Enabling 32-bit ARGB GLX visuals.

Please instruct me on how to debug this further if you're interested. I know I am! :)

Best regards

[Manuel Werlberger (mwerlberger)]

Updated to karmic yesterday. Still the same behaviour. Is this a bug within Ubuntu or is the BIOS messing around??

[José Pedro Saraiva (nocive)]

I'm guessing this is either a BIOS/dsdt bug or lack of support for this barebone within the linux kernel itself.

Eitherway, it's a really annoying bug... when the laptop battery goes under a certain percentage my lcd brightness dims (as it's supposed to) but in order to restore the brightness (after having the laptop plugged in) I _MUST_ boot up windows. Linux is not able to restore the brightness on it's own. Also, if X crashes I can't access any maintenance console terminals, so the only solution is a reboot.

But as you can see, nobody is paying attention to this, it's the first reply in almost 6 mounths. Anyways, glad to know I'm not alone on this one :)

[David Tombs (dgtombs)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage. I have classified this bug as a bug in the kernel (linux).

When reporting bugs in the future please use apport, either via the appropriate application's "Help -> Report a Problem" menu or using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[José Pedro Saraiva (nocive)]

I can say this is fixed for me in Karmic.
I now have tty console's as I was supposed to have in the first place :)

Good work!

[Jeremy Foshee (jeremyfoshee)]

Jose,
    Thank you for following up on this. I'm glad to hear that this is resolved for you. I'll go ahead and mark this Fix Released.

Thanks!

~JFo