Open-Source driver to boot Ubuntu 14.04.1

[zecabafume]

Hi All,

I have a ASRock Extreme4 + FM2A88M motherboard with Bios v2.40 and with an AMD APU A10-7800 Radeon R7 200, 12 Compute Colors 4C + 8G ? 4
When I try to install a Linux distribution (Ubuntu 14.04.1, Ubuntu 10.14 or Zorin OS 9.1) I get a black screen and it seems that the entire system is hanged.
To overcome this during the installation phase, I have to edit the grub boot line options and include the parameter nomodeset.
This way I can do the installation but once installed the problem remains.
I have to, again, edit the grub boot line and again include the nomodeset parameter.
According to this article http://ubuntuforums.org/showthread.php?t=1613132 I edited the file /etc/default/grub and put the nomodeset parameter permanently

GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash nomodeset"

But With this parameter the system starts but I get a low-resolution graphics instead of 1920x1080 and beyond that I can't get sound via HDMI even adding the radeon.audio option = 1

http://askubuntu.com/questions/296445/no-sound-on-tv-with-hdmi-ubuntu-13-04

GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash nomodeset radeon.audio = 1"


The only way I found to overcome this was installing the proprietary drives from ATI/AMD, which I don't want.
I would like to use only OSS drivers

Someone could help me to solve this annoying problem
Thanks in advance
Zeca

[zecabafume]

Hi All,

I have a ASRock Extreme4 + FM2A88M motherboard with Bios v2.40 and with an AMD APU A10-7800 Radeon R7 200, 12 Compute Colors 4C + 8G ? 4
When I try to install a Linux distribution (Ubuntu 14.04.1, Ubuntu 10.14 or Zorin OS 9.1) I get a black screen and it seems that the entire system is hanged.
To overcome this during the installation phase, I have to edit the grub boot line options and include the parameter nomodeset.
This way I can do the installation but once installed the problem remains.
I have to, again, edit the grub boot line and again include the nomodeset parameter.
According to this article http://ubuntuforums.org/showthread.php?t=1613132 I edited the file /etc/default/grub and put the nomodeset parameter permanently

GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash nomodeset"

But With this parameter the system starts but I get a low-resolution graphics instead of 1920x1080 and beyond that I can't get sound via HDMI even adding the radeon.audio option = 1

http://askubuntu.com/questions/296445/no-sound-on-tv-with-hdmi-ubuntu-13-04

GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash nomodeset radeon.audio = 1"


The only way I found to overcome this was installing the proprietary drives from ATI/AMD, which I don't want.
I would like to use only OSS drivers

Someone could help me to solve this annoying problem
Thanks in advance
Zeca

Hi All
I'm newbie nobody can help me?
Thanks

[plasmasnake]

I don't know if this will fix your problem (but my guess is that there's a good chance it will), but have you tried installing Ubuntu 14.04.2? It was just released last week. It comes with the 3.16 linux kernel, which has much better support for Kaveri. The download page is updated: http://www.ubuntu.com/download/desktop

[brosis]

Install only latest Ubuntu (or any Linux OS) if you have latest hardware. Check if your GPU is supported by the driver first.
Boot without modeset, that will use default primitive VESA driver.

Once inside, find a way to upgrade to latest kernel and get latest mesa, like from Oibaf PPA.
After upgrading to new kernel and mesa, you can try booting without nomodeset.

If your chip is not supported yet, you have to use proprietary driver.

[agd5f]

Some ASRock systems need this patch:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=72b3f9183ed57e4a2f0601a1c25ae2fd39855952

[brosis]

Some ASRock systems need this patch:
http://git.kernel.org/cgit/linux/ker...5ae2fd39855952

Thanks a lot! Is ASRock so bad lately, that its workaround on vendor level ? Wow, I thought gigabyte is a nightmare, but now...

[zecabafume]

I don't know if this will fix your problem (but my guess is that there's a good chance it will), but have you tried installing Ubuntu 14.04.2? It was just released last week. It comes with the 3.16 linux kernel, which has much better support for Kaveri. The download page is updated: http://www.ubuntu.com/download/desktop

Thanks to all.
I tried with Ubuntu 14.04.02 and now I can boot without using the nomodeset parameter.
It really seems that this new kernel version (3.16.0-31) has better Kaveri support.
Thank you for the help