-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi list, I have a Samsung q30 ultra-portable; ACPI video seems supported by standard driver. After boot, backlight control works fine with the dedicated laptop keys, but it no longer works after suspend / resume. The laptop itself is still working: I can ssh, even X is working. I can add an external screen and everything is OK, it's just the panel backlight is off. I have tried several methods found on the Internet (setpci, xrandr, sysfs) without luck. I can do: echo x >/sys/class/backlight/acpi_video0/brightness (x=0..7) to adjust brightness after boot. After resume, the command works, but has no effect. Video is: ~ Intel Corporation 82852/855GM Integrated Graphics Device I'm using KMS since 2.6.31-rc something (it was not working before). Before KMS, I used vbetool post to get my screen back on. I filed a bug at freedesktop.org one month ago, there's more detail there (acpidump, ...): http://bugs.freedesktop.org/show_bug.cgi?id=24201 Problem persists with kernel version is 2.6.32-rc5. I can provide more info, and I'm willing to try corrections / patches to solve this problem. Thanks, - -- Jean-Denis Girard SysNux Systèmes Linux en Polynésie française http://www.sysnux.pf/ Tél: +689 50 10 40 / GSM: +689 79 75 27 -----BEGIN PGP SIGNATURE----- iEYEARECAAYFAkrt+BoACgkQuu7Rv+oOo/hkdwCdEUD7/TE8ZLpvbrStTchliNus Z2cAnRsDVUGZFKlqA2klZQDYOsb3NB2n =faAb -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
