Bug 991737
| Summary: | Limited Brightness control with Radeon HD 8330 embedded in AMD A4-5000 processor apu chip | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | collura |
| Component: | kernel | Assignee: | X/OpenGL Maintenance List <xgl-maint> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 19 | CC: | collura, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, marcelo.barbosa, skottler, xgl-maint |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-09-17 10:48:05 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Attachments: | |||
Created attachment 782430 [details]
dmesg
Created attachment 782431 [details]
lspci
Created attachment 782432 [details]
lsmod
still with:
kernel-3.10.4-300.fc19.x86_64
control-center-1:3.8.3-2.fc19.x86_64
xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64
when run udevadm to look for changes have the following results:
0) 'udevadm monitor' gives escape sequence carat-bracket-0Q
when <f2> is pressed alone
and no change to
/sys/class/backlight/acpi_video0/brightness
or to
/sys/class/backlight/acpi_video0/actual_brightness
values
but with NO brightness down change,
'udevadm monitor' gives escape sequence carat-bracket-0R
when <f3> is pressed alone
and no change to
/sys/class/backlight/acpi_video0/brightness
or to
/sys/class/backlight/acpi_video0/actual_brightness
values
but with NO brightness up change,
1) 'udevadm monitor' gives NO response at all when <fcn><f2> or <fcn><f3> is pressed and with NO brightness up change,
2) 'udevadm monitor' gives at least partly normal looking response:
"KERNEL[623.204076] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
UDEV [623.216213] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)"
when echo a value to backlight using
'echo 3 > /sys/class/backlight/acpi_video0/brightness'
and DOES change values in
/sys/class/backlight/acpi_video0/brightness
and in
/sys/class/backlight/acpi_video0/actual_brightness
values
but still with NO brightness change.
3) 'udevadm monitor' observation of
controlcenter settings-power-screenbrightness slider change
produces:
"KERNEL[2417.831921] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
UDEV [2417.842551] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
KERNEL[2418.266274] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
UDEV [2418.268112] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
KERNEL[2418.387240] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
UDEV [2418.388765] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
KERNEL[2418.556695] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
UDEV [2418.557900] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
KERNEL[2418.888144] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)
UDEV [2418.889048] change
/devices/pci0000:00/0000:00:01.0/backlight/acpi_video0 (backlight)"
and DID change the values in
/sys/class/backlight/acpi_video0/brightness
and in
/sys/class/backlight/acpi_video0/actual_brightness
(where brightness and actual_brightness file values were same)
BUT with NO CHANGE in brightness.
Created attachment 787523 [details]
dmesg of kernel-3.11.0-0.rc5.git4.1.fc20.x86_64 no brightness change and locks up when move brightness slider
kernel-3.11.0-0.rc7.git4.1.fc20.x86_64 no brightness change and locks up when move brightness slider found one way to control brightness :') at least part of the problem is for sure the kernel instead of xorg-x11-drv-ati. currently using: kernel-3.11.0-3.fc20.x86_64 linux-firmware-20130724-30.git31f6b30.fc20.x86_64 microcode_ctl-2:2.1-1.fc20.x86_64 control-center-1:3.8.4.1-1.fc19.x86_64 xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64 only way to control the brightness is with the kernel-3.11.x : echo 10 > /sys/class/backlight/radeon_bl0/brightness but echo to acpi_video0 still fails. (the refiles would be for: function keys that still dont change brightness, and another for the brightness slider that moves but doesnt change brightness and also freezes the system, and guessing that when freezes stop that it will still be foregetful of the brightness setting after reboot. ;') ) leaving this open for now (renaming as 'limited' instead of 'no') until figure better way to seperate out the subsets of refiles. Created attachment 796689 [details]
dmesg from kernel-3.11.0-3.fc20.x86_64
Created attachment 796690 [details]
vae log messages from kernel-3.11.0-3.fc20.x86_64
Created attachment 796736 [details]
pm-utils-bugreport-info script output
from comment#7 'closing after seperate out refiles' : refiled pieces as https://bugzilla.redhat.com/show_bug.cgi?id=1007227 display not resume from suspend https://bugzilla.redhat.com/show_bug.cgi?id=1007241 slider freeze https://bugzilla.redhat.com/show_bug.cgi?id=1008898 fcn key mislabeling (including no brightness keys) so closing this https://bugzilla.redhat.com/show_bug.cgi?id=991737 no brightness control as errata since kernel now has working 'echo to radeon_bl0' to change brightness [and changing to kernel since the fix didnt involve any ati drv updates :') ] |
Description of problem: Brightness remains at full and cant be changed with slider or echo backlight. cant change brightness of screen: Using 'Settings-Power-screenbrightness' slider has no effect on brightness when slide to change brightness. or Using 'echo $somenumber > /sys/class/backlight/acpi_video0/brightness' has no effect on brightness. Version-Release number of selected component (if applicable): kernel-3.10.4-300.fc19.x86_64 control-center-1:3.8.3-2.fc19.x86_64 xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64 How reproducible: always Steps to Reproduce: 1. boot and login 2. change settings-power-screenbrightness slider 3. no change in brightness Actual results: no change in screen brightness when change brightness setting value Expected results: screen brightness changes to desired level and remembered at next boot Additional info: default brightness set to maximum and cant be turned down ( at least can read screen but nearly blinding ;') ) Toshiba Satellite L75D-A AMD A4-5000 apu processor/video with embedded Radeon HD 8330 video chip with 'bios' insydeH2O v3.7 with 'Security-secureboot' disabled and with 'Advanced-bootmode' set to csm instead of uefi fc19 installed fully updated (over network after sneakernetting over kernel-3.10.3-300.fc19.x86_64 rpm) lsmod toshiba_acpi 22853 0 video 19052 0 screen generally ok but sometimes windows have snow background noise in non-focus windows and sometimes in controls within focused window like this text entry widget whose gradient backround colors between the gray and white are snowy medium grays.