Let me be more specific I can re-produce this every time i switch on my machine, I can reproduce this problem after clean install. Operating system: Fedora 15 x86_64 HP Pavilion DV6-3132TX 6GB DDR3 640GB SATA ATI 5650 Test one: 1. Turn on machine 2. See the loading screen, as soon the logo shows the screen flicks from full brightness to a very dimmed screen My guess is video card or power management? Test two: 1. Turn on machine 2. See the loading screen, as soon the logo shows the screen flicks from full brightness to a very dimmed screen 3. Log into KDE 4. After loading, it changes screen brightness to full, laptop brightness keys work Test three: 1. Turn on machine 2. See the loading screen, as soon the logo shows the screen flicks from full brightness to a very dimmed screen 3. Log into Gnome, screen dimmed does not change 4. Log out Gnome, Log into KDE 5. Brightness goes to full Test four: 1. Turn on machine 2. See the loading screen, as soon the logo shows the screen flicks from full brightness to a very dimmed screen 3. Log into KDE 4. After loading, it changes screen brightness to full, laptop brightness keys work 5. Log out KDE, Log into Gnome 6. Full brightness This above was tested using the built in drivers for ATI, The Open source ones that come stock standard. If i install ATI Proprietry then i lose all controls and brightness no matter what desktop. If i install akmod or kmod drivers then i lose all controls and brightness no matter what desktop. My laptop also runs an external monitor which shows full brightness if this situation changes anything. What should of happened: Upon loading the KDE, Gnome, XFCE desktop enviroments the laptop screen should switch to full brightness. thanks
Not sure if it's a bug however all laptops with my model will clean install fedora 15 and have the same problems. I resolved this issue by adding the below to my grub.conf file: acpi_osi=Linux acpi_backlight=vendor Now computer boots full brightness. though brightness keys do not work.
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue. Please remove all ACPI settings, and add drm.debug=0x04 to the kernel command line, restart computer, and attach * your X server config file (/etc/X11/xorg.conf, if available), * X server log file (/var/log/Xorg.*.log) * output of the dmesg command, and * system log (/var/log/messages) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above. We will review this issue again once you've had a chance to attach this information. Thanks in advance.
Created attachment 504225 [details] dmesg dmesg as requested
Created attachment 504226 [details] messages log messages log as requested
Created attachment 504227 [details] xorg logs new and old xorg logs current and old
Hi Matej Cepl, Xorg.conf not available. but other files were. Please remember that the computer boots dimmed, XFCE and Gnome does not change brightness but KDE does switch on brightness. I can add acpi_osi=Linux acpi_backlight=vendor to grub.conf to fix the brightness but then my hotkeys do not work, the brightness is locked. Hope this is enough info required. Josh
Hi Matej Cepl, Will this be looked at or fixed with a patch? Let me know if you require any more information. Kind regards Josh
Created attachment 515385 [details] dmesg.txt from the archive
Created attachment 515386 [details] messages from the archive
Created attachment 515387 [details] Xorg.0.log from the archive
Created attachment 515388 [details] Xorg.0.log.old from the archive
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