Difference between revisions of "Errata ROSA Desktop R1"
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===Backlight/Brightness workaround for laptop Packard Bell TE11HC-B8302G50Mnks=== | ===Backlight/Brightness workaround for laptop Packard Bell TE11HC-B8302G50Mnks=== | ||
| − | The FN-F11 and FN-F12 | + | The FN-F11 and FN-F12 combinations doesn't work to adjust brightness/backlight of screen. |
| − | When you push this | + | When you push this combinations nothing happens. |
Solution: | Solution: | ||
| − | To have a | + | To have a functional brightness adjustment you need to put acpi_osi=Linux acpi_backlight=vendor on the grub line with mcc. |
After a reboot all is ok, you can set brightness up or down with button combo. | After a reboot all is ok, you can set brightness up or down with button combo. | ||
Revision as of 19:08, 22 December 2012
Known release problems
Contents
Hardware issues
Incorrect screen resolution after boot
If you monitor supports high resolution but a lower one is chosen during the boot, use the following workaround:
1. Install lxrandr
2. Launch it from a command line AS A USER and set necessary resolution from the list appeared
3. Press SAVE to create a config file that will be automatically used in future
When using proprietary NVIDIA or AMD/ATI drivers, artifacts can appear on the screen during the boot
If you see artifacts on your display, press Ctrl+Alt+Backspace to restart X-Server
I have hybrid ATI/Intel graphics and I cannot boot using ATI card
Unfortunately, the full-featured support of this combination is announced but not implemented correctly (yet) in X-Server 13. Use Intel graphics card by disabling AMD/ATI one in BIOS or add "xserver=intel" by editing edit the following line in the /etc/default/grub file (with root privileges):
GRUB_CMDLINE_LINUX_DEFAULT='splash=silent logo.nologo'
We'll get you know when support for this cards combination will be fixed.
Backlight/Brightness workaround for laptop Packard Bell TE11HC-B8302G50Mnks
The FN-F11 and FN-F12 combinations doesn't work to adjust brightness/backlight of screen. When you push this combinations nothing happens.
Solution: To have a functional brightness adjustment you need to put acpi_osi=Linux acpi_backlight=vendor on the grub line with mcc. After a reboot all is ok, you can set brightness up or down with button combo.
Software issues
Applications that use OSS don't work (no /dev/dsp or /dev/audio)
Since old OSS modules are not supported anymore, you should use ossp - free implementation of OSS wrapper in Pulseaudio. Install it using this command:
urpmi ossp
or using the package manager and reboot. Check if the cuse module is loaded:
lsmod | grep cuse
If everything is ok, applications can use OSS as usual..
Cracking sound in Skype
On some hardware configurations, one can get a crackling sound in Skype. To solve this issue, open /etc/pulse/default.pa file with root privileges and find the following line:
load-module module-udev-detect
replace it with:
load-module module-udev-detect tsched=0
Save changes and reboot. For more information, see #288
