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pmam
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PostPosted: Sun Mar 29, 2015 7:01 pm    Post subject: Low resolution in multi-boot screen? Reply with quote

After re-installation, the multi-boot screen - I mean the screen just after grub -
is with low resolution - similar to Bios resolution. All graphic drivers are built-in kernel (but not modules).
Before, it was with high resolution. Actually, it is not important, but for my curiosity,
I would like to know the reason, and maybe it is a symptom for other issues?
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chithanh
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PostPosted: Tue Mar 31, 2015 8:39 am    Post subject: Reply with quote

Ensure that your kernel has CONFIG_PRINTK_TIME enabled, and show us your dmesg. This will tell which driver initializes at what time.
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pmam
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PostPosted: Tue Mar 31, 2015 9:12 am    Post subject: Reply with quote

chithanh Hi,

CONFIG_PRINTK_TIME is enabled, but when I hit dmesg|less I get this strange output - many lines like these:
Code:
[11117.459489] show_signal_msg: 66 callbacks suppressed
[11117.459496] pcmanfm[13795]: segfault at 1 ip 00007fb6c15e9142 sp 00007ffe90e6f860 error 4 in libfm.so.4.0.3[7fb6c15ce000+39000]
[11117.543163] pcmanfm[13800]: segfault at 1 ip 00007efd84a1f142 sp 00007ffe4a5f0090 error 4 in libfm.so.4.0.3[7efd84a04000+39000]
[11117.619841] pcmanfm[13805]: segfault at 1 ip 00007f4335202142 sp 00007ffd1f42e760 error 4 in libfm.so.4.0.3[7f43351e7000+39000]
[11117.693077] pcmanfm[13810]: segfault at 1 ip 00007fbcf543f142 sp 00007ffca8e10740 error 4 in libfm.so.4.0.3[7fbcf5424000+39000]
[11117.768247] pcmanfm[13815]: segfault at 1 ip 00007f5cf61bc142 sp 00007ffd4048b6b0 error 4 in libfm.so.4.0.3[7f5cf61a1000+39000]
[11117.820302] pcmanfm[13820]: segfault at 1 ip 00007f73b04b6142 sp 00007ffd87fb6b90 error 4 in libfm.so.4.0.3[7f73b049b000+39000]
[11117.900737] pcmanfm[13825]: segfault at 1 ip 00007f5ed9e64142 sp 00007ffc088b26f0 error 4 in libfm.so.4.0.3[7f5ed9e49000+39000]
[11117.975111] pcmanfm[13830]: segfault at 1 ip 00007f50b74b4142 sp 00007ffcd3bd53d0 error 4 in libfm.so.4.0.3[7f50b7499000+39000]
[11118.037863] pcmanfm[13835]: segfault at 1 ip 00007ff1b488b142 sp 00007ffcdb1a0fd0 error 4 in libfm.so.4.0.3[7ff1b4870000+39000]
[11118.103184] pcmanfm[13840]: segfault at 1 ip 00007f2f0e57a142 sp 00007ffe038cd700 error 4 in libfm.so.4.0.3[7f2f0e55f000+39000]

I know there is a problem with pcmanfm - I am working with LXDE and this file manager does not work -
do not know how to fix it. May be it causes to problem with dmesg output???
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pmam
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PostPosted: Tue Mar 31, 2015 9:59 am    Post subject: Reply with quote

I did reboot and now there is better dmesg output:
http://pastebin.com/A6syEFy8
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chithanh
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PostPosted: Tue Mar 31, 2015 11:02 am    Post subject: Reply with quote

Code:
[    0.229975] Console: switching to colour frame buffer device 160x64

It appears that the i915 driver switches to high-resolution framebuffer console after 0.2 seconds. Are you talking about the time between grub and those 0.2 seconds? If so, set linux_gfx_mode=keep in grub.cfg and enable CONFIG_FB_SIMPLE and CONFIG_X86_SYSFB.

If not, maybe describe in more detail the screen which comes after grub.
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pmam
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PostPosted: Tue Mar 31, 2015 11:15 am    Post subject: Reply with quote

I am talking about the multi-boot screen - the screen that shows all OS options:
Defualt Gentoo, old versions of Gentoo, win7 ...
This screen has low resolution.
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chithanh
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PostPosted: Tue Mar 31, 2015 11:45 am    Post subject: Reply with quote

That screen is usually displayed by grub, not after it. You may have to set grub_gfxmode to "auto" or a specific resolution that you want.
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pmam
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PostPosted: Tue Mar 31, 2015 12:58 pm    Post subject: Reply with quote

I have done this:
Quote:
set linux_gfx_mode=keep in grub.cfg and enable CONFIG_FB_SIMPLE and CONFIG_X86_SYSFB.

and it did not help. BTW: after running grub2-mkconfig -o /boot/grub/grub.cfg, it changed again to set gfxmode=auto.
If this low-resolution is not important (just aesthetic), I will leave it as is...

But, why it happens, it was ok in previous installations, no need to change anything in grub.cfg...
Some consistency is essential :)

Here the first part of /boot/grub/grub.cfg:
Code:
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos8'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos8 --hint-efi=hd0,msdos8 --hint-baremetal=ahci0,msdos8  e9b78348-b2ec-4813-b669-0cb230a997df
else
  search --no-floppy --fs-uuid --set=root e9b78348-b2ec-4813-b669-0cb230a997df
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=5
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-e9b78348-b2ec-4813-b669-0cb230a997df' {
   load_video
   if [ "x$grub_platform" = xefi ]; then
      set gfxpayload=keep
   fi
   insmod gzio
   insmod part_msdos
   insmod ext2
   set root='hd0,msdos6'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6  ad34f95a-5db6-4142-9bb5-9578a10bf69f
   else
     search --no-floppy --fs-uuid --set=root ad34f95a-5db6-4142-9bb5-9578a10bf69f
   fi
   echo   'Loading Linux 3.18.9-gentoo ...'
   linux   /vmlinuz-3.18.9-gentoo root=/dev/sda8 ro 

_________________
“You can take our property, our sweet homes, even our cloths...
But don't touch the streets, Ah, That's NO, NO, NO!
The streets are our @world's compilable kernel ...”
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