|Summary:||after suspend monitor is darker on nvidia gt510m|
|Component:||Driver/nouveau||Assignee:||Nouveau Project <nouveau>|
|Status:||NEW ---||QA Contact:||Xorg Project Team <xorg-team>|
|i915 platform:||i915 features:|
Description pineout 2014-07-12 14:40:11 UTC
On samsung RV720 notebook, after suspend, the screen is really dark/grey, but visible. I can correct the gamma using command line or a cairo applet, but the brightness is not responding. Changed different Linux Os, tried many googled suggestions, none worked for me.
Comment 1 Ilia Mirkin 2014-07-12 14:48:37 UTC
Sounds like your backlight is getting turned down and not restored. Are you able to control the backlight with linux? You might need to pass in acpi_backlight=vendor on the kernel cmdline. Can you attach your dmesg?
Comment 2 pineout 2014-07-12 16:52:03 UTC
Incredible I tried this solution (between many) months ago, without success. Now probably with different Linux/Kernel/DE a simple acpi_backlight=vendor solved the problem.
Comment 3 Germano Massullo 2014-07-13 15:15:57 UTC
(From Fedora forum I have found out you use Fedora.) Please fill a bugreport in RedHat bugilla against kernel component, at attention of Hans de Goede. It is very similar to https://bugzilla.redhat.com/show_bug.cgi?id=861573