** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1326257
Title: [nvidia-prime] Cannot adjust brightness in guest session and results in black screen while changing the resolution Status in HWE Next Project: New Status in Nvidia Feature Request and Bug Reporting: New Status in OEM Priority Project: In Progress Status in OEM Priority Project trusty series: New Status in “nvidia-prime” package in Ubuntu: In Progress Status in “ubuntu-drivers-common” package in Ubuntu: Fix Released Status in “nvidia-prime” source package in Precise: In Progress Status in “ubuntu-drivers-common” source package in Precise: Invalid Status in “xorg-server-lts-saucy” source package in Precise: New Status in “nvidia-prime” source package in Trusty: Invalid Status in “ubuntu-drivers-common” source package in Trusty: Fix Committed Status in “xorg-server-lts-saucy” source package in Trusty: New Bug description: SRU Request Systems with Optimus (Intel+NVIDIA GPUs) can have problems with the backlight (private bug #1290694) and when detecting and switching to different resolutions (private bug #1285062). Using the intel driver (with SNA) works better than the current solution (the modesetting driver). [Impact] * Backlight control and resolution changes fail on some Optimus systems. [Test Case] * Select performance mode from the nvidia-settings panel and try to adjust the backlight or to cycle through the available resolutions - Expected: the backlight can be adjusted, and changing the resolution works. - Bad behavior: the backlight can't be adjusted and changing the resolution can some times result in a black screen. [Regression Potential] * Low, as the intel driver is more feature complete than modesetting. [Other Info] * N/A -- Running the proprietary nvidia drivers in an Optimus config works (Intel+NVIDIA) can discover two issues: 1. Cannot adjust brightness in the guest session (private bug #1290694) [Test Case] * Switch to guest session and adjust brightness from settings or hotkey or command line - Expected: Can adjust the brightness - Bad behavior: Cannot adjust brightness 2. Black screen while changing the resolution (private bug #1285062) but switching to the guest session results in a black screen. [Test Case] * Go to display setting, set rotation to counterclockwise/clockwise/180 degrees and click apply - Expected results: Can switch display rotation successfully - Actual results: Black screen when switching display rotation To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1326257/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp