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pmam
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Joined: 30 Dec 2013
Posts: 1145
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 Posted: Sun Mar 29, 2015 7:01 pm Post subject: Low resolution in multi-boot screen? |
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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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“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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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Tue Mar 31, 2015 8:39 am Post subject: |
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| 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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Joined: 30 Dec 2013
Posts: 1145
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| Posted: Tue Mar 31, 2015 9:12 am Post subject: |
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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???
_________________
“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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pmam
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Joined: 30 Dec 2013
Posts: 1145
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| Posted: Tue Mar 31, 2015 9:59 am Post subject: |
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I did reboot and now there is better dmesg output:
http://pastebin.com/A6syEFy8
_________________
“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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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Tue Mar 31, 2015 11:02 am Post subject: |
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| 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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Joined: 30 Dec 2013
Posts: 1145
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| Posted: Tue Mar 31, 2015 11:15 am Post subject: |
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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.
_________________
“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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chithanh
Developer
Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany
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| Posted: Tue Mar 31, 2015 11:45 am Post subject: |
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| 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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Joined: 30 Dec 2013
Posts: 1145
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| Posted: Tue Mar 31, 2015 12:58 pm Post subject: |
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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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