When adjusting the LCD brightness on an IBM Thinkpad X60s, adjusting the brightness up crashes the x server on Fedora Core 5. Adjusting the brightness down works fine. If I stop acpid before attempting the adjustment, it doesn't crash. There is probably a bug in the ibm_acpi module as well that is causing this one. I will attach my xorg.conf and the relevant logs, hopefully this is something easily fixed or at least worked around.
Created attachment 8124 [details] xorg.conf Dual head config, don't think that's important though.
Created attachment 8125 [details] The logfile before I press anything This is what the log looks like before I press anything.
Created attachment 8126 [details] The log messages after I turn the brightness down After the brightness down button is pressed. Here the xserver is still functioning.
Created attachment 8127 [details] After pressing the brightness up button Here I have pressed the brightness up button. Now the screen is black, but the xserver is still running. If I continue to press the brightness up button, it will crash.
Created attachment 8128 [details] The xserver has crashed with one button press. The complete Xorg.0.log from when the xserver crashes after one press of "Fn + Home", or brightness up.
Created attachment 8129 [details] The log of acpid
Here's what video hardware I have: 00:02.0 VGA compatible controller: Intel Corporation Mobile Integrated Graphics Controller (rev 03) (prog-if 00 [VGA]) Subsystem: Lenovo Unknown device 201a Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at ee100000 (32-bit, non-prefetchable) [size=512K] I/O ports at 1800 [size=8] Memory at d0000000 (32-bit, prefetchable) [size=256M] Memory at ee200000 (32-bit, non-prefetchable) [size=256K] Capabilities: [90] Message Signalled Interrupts: 64bit- Queue=0/0 Enable - Capabilities: [d0] Power Management version 2 00:02.1 Display controller: Intel Corporation Mobile Integrated Graphics Control ler (rev 03) Subsystem: Lenovo Unknown device 201a Flags: fast devsel Memory at ee180000 (32-bit, non-prefetchable) [size=512K] Capabilities: [d0] Power Management version 2
One more bit of information: This is in Fedora Core 5. I booted off a Kubuntu Dapper (6.06) cd, and the brightness up/down worked fine. Not sure which driver it was using, though. So I decided I would go to ubuntu, and downloaded Ubuntu Edgy (6.10). Booted off that live cd, and the problem was back! So, at this point I am going to stick with Fedora until there is a fix released, mainly because I doubt dual-head will work in Ubuntu 6.06.
Fedora Core 5 is pretty old and it's using a very old i810 driver. If ubuntu is working I suspect it's using a newer driver too. Closing this if it's working on Ubuntu. Feel free to reopen if you try again and have more information with up-to-date drivers. Maybe with FC6.
Ah, but here's the catch. It works in 6.06 but not 6.10. And for all I know, 6.06's live cd was using vesa, I didn't check (I should have). 6.10's live cd i.e. the most recent version of ubuntu) didn't work. Perhaps I will try FC6.
I'm running Kubuntu 6.10 with my own compiled kernel (2.6.19.2) and this problem still exists. I'm on BIOS version 2.05 (the latest at this time). The following page has some more info--it was recently created by a friend of mine and added to by others: http://www.thinkwiki.org/wiki/Problem_with_LCD_brightness_buttons My opinion is this bug should be reopened. What do you guys think?
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