May 17, 2014 - 05:49am
After I installed (the working) 1.0.5 and it did it's updates screen blanking stopped working as it had. It worked once after boot, but as soon as I had an application open the screen didn't blank anymore and stayed on until I turned it off manually or rebooted. I uninstalled the Intel Graphics Installer and installed the original packages since I had kept the log of what was changed and screen blanking works like normal again. I guess I'll have to live with the Intel drivers that come with Ubuntu 14.04.
I found a similar issue with my system - SagerNP2740 - Iris Pro 5200- Ubuntu 14.04 LTS. When I press Fn F2 the screen blanks in Win7 ,but in Ubuntu it flickers endlessly (unless I put it to sleep then wake it, then it recovers and is on). But in 14.04 I can use Fn F8 to reduce brightness to 0; effectively blanking the screen, then I use Fn F9 to bring brightness back up sans any issues.
That's... weird. The 1.0.5 installer doesn't update the i915 driver -
Checking the list of things updated this time around:
intel-gpu-tools is a developer package, and the va packages are to do with video playback acceleration.
When you see the flickering, are there any interesting messages in dmesg or in the Xorg log?