My XPS 13.3FHD brightness has been off since kernel 3.8.0-30. Lucky for
me I never removed kernel 3.8.0-29, since I can reboot into that kernel
an everything works.
SjB
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I confirm this bug,
I also have the EFI booting turn on, and have the brightness issue since kernel
3.8.0-30-generic.
https://bugs.launchpad.net/dell-sputnik/+bug/1169376
When I use kernel 3.8.0-29-generic from ubuntu 13.04 in 13.10 I don't
have the screen refresh issue or the brightness issue.
I was able to get UEFI working with kernel 3.11.0-12-generic on my XPS
13 L322x HD
I booted into my XPS bios setup, navigated to the boot tab, and
configure the setting as below;
Secure Boot: Disable
Load Legacy Option Rom: Enabled
Boot List Option: UEFI
As stated in my previous comment (#12) I
I'm sure when you enabled the "Load Legacy Option Rom" the bios
initialize some of the hardware differently then when that option is
disabled.
I'm sure that I'm booting with the efi kernel
Command line: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic.efi.signed
** Attachment added: "dmesg"
https:
If you are using the XPS 13 L322x HD syste and booting with the EFI
loader you may want to try setting your bios to these settings.
I booted into my XPS bios setup, navigated to the boot tab, and
configure the setting as below;
Secure Boot: Disable
Load Legacy Option Rom: Enabled
Boot List Option
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