Bug 737620
| Summary: | Backlight control on HP Pavilion dv7 notebook doesn't work | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | mlambda |
| Component: | kernel | Assignee: | Matthew Garrett <mjg59> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | high | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 17 | CC: | gansalmon, gregor, itamar, james, jonathan, kernel-maint, madhu.chinakonda |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | backlight first=2.6.38.6 tested=3.1.1 | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-03-14 17:35:48 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
mlambda
2011-09-12 18:06:49 UTC
F15 is at 2.6.40 now. Please try the latest kernel in updates stable. (In reply to comment #1) > F15 is at 2.6.40 now. Please try the latest kernel in updates stable. That might be worth trying, but the 3.1-rcX kernels in Fedora 16 have some native backlight commits that might help in this area even more. (In reply to comment #2) > (In reply to comment #1) > > F15 is at 2.6.40 now. Please try the latest kernel in updates stable. > > That might be worth trying, but the 3.1-rcX kernels in Fedora 16 have some > native backlight commits that might help in this area even more. I tried the latest F16 Alpha Live CD (Linux localhost.localdomain 3.0.0-1.fc16.x86_64 #1 SMP Fri Jul 22 16:09:29 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux) but the backlight brightness can't be changed either. Is there any Live CD available with a 3.1-rcX kernel you mentioned? For further information about the hardware please check the bug report on Ubuntu Launchpad. The f16 Beta live images should ship with 3.1-rc5 (ish). There are also nightly composes here: http://koji.fedoraproject.org/koji/taskinfo?taskID=3342109 (In reply to comment #4) > The f16 Beta live images should ship with 3.1-rc5 (ish). There are also > nightly composes here: > > http://koji.fedoraproject.org/koji/taskinfo?taskID=3342109 Thanks for the link! I tried the nightly build (Linux localhost.localdomain 3.1.0-0.rc4.git0.0.fc16.x86_64 #1 SMP Tue Aug 30 00:00:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux) but it still doesn't work. If you need any additional information please tell me. Could you please attach the output of ls -l /sys/class/backlight ? (In reply to comment #6) > Could you please attach the output of ls -l /sys/class/backlight ? [root@localhost liveuser]# ls -l /sys/class/backlight total 0 lrwxrwxrwx. 1 root root 0 Sep 13 15:14 acpi_video0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/backlight/acpi_video0 lrwxrwxrwx. 1 root root 0 Sep 13 15:14 acpi_video1 -> ../../devices/pci0000:00/0000:00:02.0/backlight/acpi_video1 lrwxrwxrwx. 1 root root 0 Sep 13 15:14 intel_backlight -> ../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-LVDS-1/intel_backlight uname -a: Linux localhost.localdomain 3.1.0-0.rc4.git0.0.fc16.x86_64 #1 SMP Tue Aug 30 00:00:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux (In reply to comment #7) > (In reply to comment #6) > > Could you please attach the output of ls -l /sys/class/backlight ? > > [root@localhost liveuser]# ls -l /sys/class/backlight > total 0 > lrwxrwxrwx. 1 root root 0 Sep 13 15:14 acpi_video0 -> > ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/backlight/acpi_video0 > lrwxrwxrwx. 1 root root 0 Sep 13 15:14 acpi_video1 -> > ../../devices/pci0000:00/0000:00:02.0/backlight/acpi_video1 > lrwxrwxrwx. 1 root root 0 Sep 13 15:14 intel_backlight -> > ../../devices/pci0000:00/0000:00:02.0/drm/card1/card1-LVDS-1/intel_backlight > > uname -a: Linux localhost.localdomain 3.1.0-0.rc4.git0.0.fc16.x86_64 #1 SMP Tue > Aug 30 00:00:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux 'cd /sys/class/backlight/intel_backlight/; echo xx >brightness' works fine! It's just the function keys and the Gnome applet that don't work. I'm going to bet that acpi_video1 works as well. Ok, I know how to fix this, it just involves some typing. (In reply to comment #9) > I'm going to bet that acpi_video1 works as well. Ok, I know how to fix this, it > just involves some typing. acpi_video0 and acpi_video1 don't work, just intel_backlight. (In reply to comment #9) > I'm going to bet that acpi_video1 works as well. Ok, I know how to fix this, it > just involves some typing. I have the same problem here. Is there any final solution to this. It doesn't work with the acpi0 or 1 branches Any update here. Gregor Seeing this too on Fedora 16, HP Pavilion DM4-1060US - the following workaround works: # uname -a Linux hp-dm4 3.1.1-2.fc16.x86_64 #1 SMP Mon Nov 14 15:46:10 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux # echo 4882 > /sys/class/backlight/intel_backlight/brightness # lspci 00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02) 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) 00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05) 00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05) 00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5) 00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05) 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05) 00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05) 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03) 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02) ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02) ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02) ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02) ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02) ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02) # ls -l /sys/class/backlight/ total 0 lrwxrwxrwx 1 root root 0 Nov 22 14:18 acpi_video0 -> ../../devices/pci0000:00/0000:00:02.0/backlight/acpi_video0 lrwxrwxrwx 1 root root 0 Nov 22 14:18 intel_backlight -> ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight Is this still happening with 2.6.43/3.3? I'm using Linux Mint 12 with kernel 3.4 now and it still doesn't work out of the box. I had to add 'acpi_backlight=vendor' to the kernel parameters as suggested here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/847187/comments/27 I guess we'll move this to F17. Matthew, did you ever get around to doing that typing you mentioned in comment #9? |