Re: [gentoo-user] Re: DRM Problem : Radeon HD 7670M

[Mick]

On Wednesday 04 May 2016 13:06:45 JingYuan Chen wrote:
> Hello Mick & James,
>
> I found that I made a big mistake after I installed kernel 4.4.6. My laptop
> still used kernel 4.1.5 to boot. It come as a surprise to me.
>
> Therefore, I check the configuration of grub2 and fstab. Then I found that
> I forgot to modify mount options in fstab.
> The option of my boot partition was set as noauto. So that I don't use the
> kernel compiled by myself at all.

You do not need to mount /boot in fstab to be able to boot, but you *do* need 
to mount it when you're installing a new kernel.  My /boot is also noauto in 
fstab.  I mount it manually when I need to edit it, or install new kernels.


> After correcting these errors, I can use Radeon driver to execute X window
> now. Althought wasting more time to find out the answer, I think that I
> learn more with gentoo.
>
> Thank you for your help !
>
> Regards,
> Phil
>
> On Mar 29, 2016 9:32 AM, "JingYuan Chen" <phil.cyc@×××××.com> wrote:
> > James,
> >
> > Thanks for your response and suggestion !
> >
> > Rich0's kernel crash dump page is interesting to me. I think that I could
> > find some useful information in it. I used Gentoo Live DVD to install
> > Gentoo into my laptop. I will use it to check VGA configuration again this
> > weekend.
> >
> >
> > Thank you !
> >
> >
> >
> > Regards,
> > Phil
> >
> > On Sun, Mar 27, 2016 at 1:06 AM, James <wireless@×××××××××××.com> wrote:
> >> JingYuan Chen <phil.cyc <at> gmail.com> writes:
> >> > I had installed Gentoo in my laptop  successfully last weekend. My
> >>
> >> laptop
> >> is Toshiba Satellite L840. I found that my VGA card is Radeon HD 7670M
> >> using
> >> "lspci -k" command. Therefore, I refer to Gentoo's Radeon wiki page to
> >> configure 4.1.15-r1 kernel with TURKS firmware and emerge linux-firmware
> >> atom.
> >>
> >> > However, my new kernel can not load TURKS successfully. I notice that
> >>
> >> there is an error message with DRM in dmesg's output. It shows
> >> [drm:evergreen_init] *ERROR* Failed to load firmware.
> >>
> >> > Why Evergreen ? Is not Northern Islands ? I am sure that the filename I
> >>
> >> gave is TURKS's firmware in menuconfig.
> >>
> >> > How could I make the dmesg's error message more verbose to debug ?
> >> > Are there some configurations should I check again ?
> >> > p.s. I built it in kernel not in modules.
> >> > Any advice would be greatly appreciated.
> >>
> >> Look directly into /lib/firmware/radeon/ and make sure you do not have
> >> a typo somewhere.
> >>
> >> Building directly into the kernel is a really good idea for video
> >> drivers.
> >>
> >> Another tool you may want to check out, is Rich0's kernel crash dump
> >> page::
> >>
> >> https://wiki.gentoo.org/wiki/Kernel_Crash_Dumps
> >>
> >>
> >> Last, when all else fails and is actually quite easy is to find a
> >> liveCD/DVD, from any distro that boots your lappy with the radeon driver
> >> that works. Then you parse about to find the one it uses. Some of these
> >> drivers are very close in the components and vendor card vendors have
> >> a 'malaise' of dis information surrounding the exact specs of the video
> >> components in there hardware, particularly laptop and tablet vendors.
> >>
> >>
> >> Just keep looking around, trying different ones out and something will
> >> work, eventually.
> >>
> >> 'lspci -k' show video driver details use on a generic livedvd booted
> >> system.
> >>
> >> A livedvd was created to give away at a recent california conference but
> >> I
> >> did not see it posted anywhere on the Release Engineering project pages.
> >> There are other gentoo derivative distros with livedvd you can bootup
> >> to help find the correct driver.
> >>
> >>
> >>
> >> good hunting,
> >> James

-- 
Regards,
Mick