EeePC 1000, after resume brightness controls fail

[D-Caf]

I've found that after resuming from suspend to ram my LCD brightness is stuck at full brightness. Also, I am unable to adjust the brightness without a reboot.

Anyone else have this problem or know of a fix? Thanks.

[hotdog]

I didn't realise I had this problem until I saw your post, but it seems I do too. I was able to change LCD brightness before, but I've tested both hibernate and suspend functions since my last reboot (they worked perfectly 'out of the box', BTW ) and now I can't change brightness.

[D-Caf]

Ok, kinda have a temporary solution. I did two things, one I edited my grub boot line to add the following:

video=vesafb:ywrap,mtrr vga=789

i.e. my boot line looks like this now:

kernel /vmlinuz-2.6.26.3-29.fc9.i686 ro root=/dev/sda2 video=vesafb:ywrap,mtrr vga=789 quiet

This gives me a 800x600 terminal during boot and on the alt-ctrl-Fn1-6 keys after X loads. Just like the exrra space.

Now after I go to suspend and resume, the brightness is locked, but if I switch to one of the teminal screens via alt-ctrl-F1 for example then back to the GUI via alt-ctrl-F7 I get my brightness control back. Now, just need to figure out what this means under the hood and how to have brightness control back without switching terminals.

[hotdog]

It's pretty weird that switching terminals clears the error. Have you posted to bugzilla with your findings? Thanks for the workaround, anyway.

[D-Caf]

Nope, haven't filed a bug report yet, been busy last two days. Still busy :-(

[D-Caf]

Bug now filed:
https://bugzilla.redhat.com/show_bug.cgi?id=464260

Hopefully we can get a clean fix. Wish I had more details though.