Hello Fedora 13 testers,
Did you notice that there is no longer a brightness control slider in GNOME power management ?
I noticed that after performed a suspend this morning and found the screen kept dim forever. What I mean by forever is that even I rebooted to the Fedora 13 LiveUSB, it was still dim! Hard to believe but it is true.
Finally I got the brightness back to normal by using a Fedora 12 LiveUSB and adjusting the brightness.
For God sake, please do not tell me it is another decision following upstream. I agree that not so many users would bother tweaking the application menu. But the brightness control?
Anyway, if it is a bug, I am quite happy to file it. Just point me the place.
Kind regards,
Tommy He
On Tue, 2010-03-09 at 16:54 +0000, Tommy He wrote:
Hello Fedora 13 testers,
Did you notice that there is no longer a brightness control slider in GNOME power management ?
I noticed that after performed a suspend this morning and found the screen kept dim forever. What I mean by forever is that even I rebooted to the Fedora 13 LiveUSB, it was still dim! Hard to believe but it is true.
Finally I got the brightness back to normal by using a Fedora 12 LiveUSB and adjusting the brightness.
For God sake, please do not tell me it is another decision following upstream. I agree that not so many users would bother tweaking the application menu. But the brightness control?
The brightness keys on your keyboard don't work ? There is still a slider in the first tab of the power preferences, and the there is still an applet you can use (admittedly, it currently has some issues with mouse interaction, but works perfectly fine with the keyboard).
So, what you describe certainly sounds like a bug, albeit a not very clearly described one.
The brightness shortcuts don't work, either. There is no slider in the place where it used to be. gnome panel applet reported unable to acquire the laptop LCD screen brightness information.
No matter I use Nvidia binary driver from rpmfusion nor nouveau gallium3d driver, the situation remains the same: No way to adjust the brightness.
Running on Fedora 13 Alpha LiveCD does not make any difference. No such problem with previous Fedora release. I used to run the same nivida binary driver on Fedora 12. Slider was there.
http://www.smolts.org/client/show/pub_0b8133aa-815e-4c11-9e5f-f5ca20f88bb6
My dmesg message below:
I will see what happens on other laptop.
Kind regards,
Tommy He
On 9 March 2010 22:37, Matthias Clasen mclasen@redhat.com wrote:
On Tue, 2010-03-09 at 16:54 +0000, Tommy He wrote:
Hello Fedora 13 testers,
Did you notice that there is no longer a brightness control slider in GNOME power management ?
I noticed that after performed a suspend this morning and found the screen kept dim forever. What I mean by forever is that even I rebooted to the Fedora 13 LiveUSB, it was still dim! Hard to believe but it is true.
Finally I got the brightness back to normal by using a Fedora 12 LiveUSB and adjusting the brightness.
For God sake, please do not tell me it is another decision following upstream. I agree that not so many users would bother tweaking the application menu. But the brightness control?
The brightness keys on your keyboard don't work ? There is still a slider in the first tab of the power preferences, and the there is still an applet you can use (admittedly, it currently has some issues with mouse interaction, but works perfectly fine with the keyboard).
So, what you describe certainly sounds like a bug, albeit a not very clearly described one.
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On Tue, 2010-03-09 at 23:13 +0000, Tommy He wrote:
The brightness shortcuts don't work, either. There is no slider in the place where it used to be. gnome panel applet reported unable to acquire the laptop LCD screen brightness information.
No matter I use Nvidia binary driver from rpmfusion nor nouveau gallium3d driver, the situation remains the same: No way to adjust the brightness.
Running on Fedora 13 Alpha LiveCD does not make any difference. No such problem with previous Fedora release. I used to run the same nivida binary driver on Fedora 12. Slider was there.
http://www.smolts.org/client/show/pub_0b8133aa-815e-4c11-9e5f-f5ca20f88bb6
My dmesg message below:
I will see what happens on other laptop.
I believe screen dimming is usually implemented in the ACPI layer, not in the graphics driver. It's nothing to do with the _graphics card_ - it's the brightness of the monitor itself that's changed. In the same way as nothing changes in what the graphics card is doing if you just reach out and hit the brightness control on your desktop monitor.
So the fact that you didn't see it in the past with the same video card driver doesn't really matter. This is likely a kernel bug of some kind. Could you try booting with various different kernels to see if you can isolate exactly when it broke?
On Tue, 2010-03-09 at 17:21 -0800, Adam Williamson wrote:
On Tue, 2010-03-09 at 23:13 +0000, Tommy He wrote:
The brightness shortcuts don't work, either. There is no slider in the place where it used to be. gnome panel applet reported unable to acquire the laptop LCD screen brightness information.
No matter I use Nvidia binary driver from rpmfusion nor nouveau gallium3d driver, the situation remains the same: No way to adjust the brightness.
Running on Fedora 13 Alpha LiveCD does not make any difference. No such problem with previous Fedora release. I used to run the same nivida binary driver on Fedora 12. Slider was there.
http://www.smolts.org/client/show/pub_0b8133aa-815e-4c11-9e5f-f5ca20f88bb6
My dmesg message below:
I will see what happens on other laptop.
I believe screen dimming is usually implemented in the ACPI layer, not in the graphics driver. It's nothing to do with the _graphics card_ - it's the brightness of the monitor itself that's changed. In the same way as nothing changes in what the graphics card is doing if you just reach out and hit the brightness control on your desktop monitor.
So the fact that you didn't see it in the past with the same video card driver doesn't really matter. This is likely a kernel bug of some kind. Could you try booting with various different kernels to see if you can isolate exactly when it broke?
Just saw a changelog go through which probably explains this:
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gnome-power-manager-2.29.91-2.fc13 (FEDORA-2010-4350)
Update Information:
This update re-enables brightness changing support through HAL for some graphic cards.
* Thu Mar 11 2010 Bastien Nocera bnocera@redhat.com 2.29.91-2 - Update to 2.29.91 - Revert HAL removal, or some machines wouldn't have brightness handling any more
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so yeah, it was a g-p-m change, update your g-p-m and it should work again.