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|
#!/usr/bin/perl
use Getopt::Long;
GetOptions_('verbose', 'MonitorsDB', 'perl') && @ARGV == 1
or die "usage: monitor-probe-using-X [-v] [--perl] <X driver>\n";
my ($arg) = @ARGV;
my $log;
if (-e $arg) {
#- it is a log file
$log = cat_($arg);
parse_X_log($log);
} else {
my $Driver = $arg;
$log = probe_using_X($Driver) or warn("X probe failed\n"), exit 1;
my $ok = parse_X_log($log);
if ($ENV{DEBUG}) {
my $log_file = "/tmp/Xorg.log.$Driver";
output($log_file, $log);
warn "\n",
"Saving log in $log_file.\n",
$ok ? "If the detected resolution is wrong" :
"If it contains interesting information",
", open a report at http://qa.mandriva.com/ and attach $log_file.\n\n";
}
$ok or warn "Could not find a resolution\n";
}
sub GetOptions_ {
my (@l) = @_;
GetOptions('v' => \$opt{verbose}, map { $_ => \$opt{/([^=]*)/ && $1} } @l);
}
sub propagate_options {
my (@l) = @_;
map { $_ eq 'verbose' ? '-v' : "--$_" } grep { $opt{$_} } @l;
}
sub parse_edid() {
join(' ', 'monitor-parse-edid', propagate_options('verbose', 'MonitorsDB', 'perl'));
}
sub cat_ { open(my $F, $_[0]) or return; my @l = <$F>; wantarray() ? @l : join '', @l }
sub output { my $f = shift; open(my $F, ">$f") or die "output in file $f failed: $!\n"; print $F $_ foreach @_; 1 }
sub uniq { my %l; $l{$_} = 1 foreach @_; grep { delete $l{$_} } @_ }
sub tmpfile() {
chomp(my $s = `mktemp /tmp/tmp.XXXXXXXXXX`); #- we could use simply mktemp with new mktemp
eval "END { unlink '$s' }";
$s;
}
sub chvt {
my ($vt_number) = @_;
my $vt = '';
my ($VT_GETSTATE, $VT_ACTIVATE, $VT_WAITACTIVE) = (0x5603, 0x5606, 0x5607);
sysopen(my $C, "/dev/console", 2) or die "failed to open /dev/console: $!";
ioctl($C, $VT_GETSTATE, $vt) &&
ioctl($C, $VT_ACTIVATE, $vt_number) &&
ioctl($C, $VT_WAITACTIVE, $vt_number) or die "setVirtual failed";
unpack "S", $vt;
}
sub probe_using_X {
my ($Driver) = @_;
my $tmp_conf = tmpfile();
my $tmp_log = tmpfile();
output($tmp_conf, <<EOF);
Section "Files"
FontPath "/usr/lib/X11/fonts/misc:unscaled"
EndSection
Section "Module"
Disable "glx"
EndSection
Section "Device"
Identifier "device"
Driver "$Driver"
EndSection
Section "Screen"
Identifier "screen"
Device "device"
DefaultDepth 24
EndSection
Section "ServerLayout"
Identifier "layout"
Screen "screen"
EndSection
EOF
my $prev_vt = $Driver eq 'i810' && chvt(1); #- otherwise it can kill existing X
#- use -sharevts to avoid X trying to switch VT while plymouth is active;
#- trying to switch VT would lock X up (the system would continue to run
#- fine, though, as it happens before any drivers are loaded)
my $sharevts = (-x "/bin/plymouth" && system("/bin/plymouth --ping") == 0) ? "-sharevts" : "";
alarm 10;
my $ok = system("X :67 $sharevts -ac -probeonly -logfile $tmp_log -config $tmp_conf") == 0;
alarm 0;
chvt($prev_vt) if $prev_vt;
if ($ok) {
my $log = cat_($tmp_log);
return $log;
} else {
return;
}
}
sub parse_X_log_edids {
my ($log) = @_;
my @edids;
while ($log =~ /: EDID \(in hex\):\n((.*\n){8})/g) {
my @lines = split '\n', $1;
my $edid = join('', map { /:\s+([0-9a-f]{32})$/ && $1 } @lines);
if (length($edid) % 256 == 0) {
@edids = uniq(@edids, $edid);
} else {
warn "bad EDID found\n";
}
}
if (@edids) {
print "[\n" if $opt{perl};
foreach my $edid (@edids) {
open(my $F, '| ' . parse_edid());
print $F pack("C*", map { hex($_) } $edid =~ /(..)/g);
close $F;
print ",\n" if $opt{perl};
}
print "]\n" if $opt{perl};
}
@edids;
}
sub parse_X_log {
my ($log) = @_;
parse_X_log_edids($log) and return 1;
0
# i810 format: "Size of device %s is %d x %d\n" (i810/i830_driver.c)
# with one of "CRT", "TV", "DFP (digital flat panel)", "LFP (local flat panel)", "CRT2 (second CRT)", "TV2 (second TV)", "DFP2 (second digital flat panel)", "LFP2 (second local flat panel)",
# example: (II) I810(0): Size of device LFP (local flat panel) is 1024 x 768
|| $log =~ m!\bSize of device LFP \(local flat panel\) is (\d+) x (\d+)$!m
# ati format: "%dx%d panel (ID %d) detected.\n" (ati/atipreinit.c)
# example: (--) ATI(0): 1024x768 panel (ID 3) detected.
|| $log =~ m!\b(\d+)x(\d+) panel \(ID \d+\) detected\.$!m
# radeon format: "Panel Size from BIOS: %dx%d\n" (ati/radeon_bios.c)
# example: (II) RADEON(0): Panel Size from BIOS: 1400x1050
|| $log =~ m!\bPanel Size from BIOS: (\d+)x(\d+)$!m
# nv format: "Panel size is %i x %i\n" (nv/nv_setup.c)
# example: (--) NV(0): Panel size is 1280 x 800
|| $log =~ m!\bPanel size is (\d+) x (\d+)$!m
# savage format: "%dx%d %s LCD panel detected %s\n" (savage/savage_driver.c)
# with one of "TFT", "DSTN", "STN"
# and "and active", "but not active"
# example: (--) SAVAGE(0): 1024x768 TFT LCD panel detected and active
|| $log =~ m!\b(\d+)x(\d+) \S+ LCD panel detected !m
# neomagic format: "Panel is a %dx%d %s %s display\n" (neomagic/neo_driver.c)
# with one of "color", "monochrome"
# and "TFT", "dual scan"
# example: (--) NEOMAGIC(0): Panel is a 1024x768 color TFT display
|| $log =~ m!\bPanel is a (\d+)x(\d+) (?:color|monochrome) (?:TFT|dual scan) display$!m
# siliconmotion format: "Detected panel size via BIOS: %d x %d\n" (siliconmotion/smi_driver.c)
|| $log =~ m!\bDetected panel size via BIOS: (\d+) x (\d+)$!m
# siliconmotion format: "%s Panel Size = %dx%d\n" (siliconmotion/smi_driver.c)
|| $log =~ m! Panel Size = (\d+)x(\d+)$!m
# trident format: "%s Panel %ix%i found\n" (trident/trident_driver.c)
# with one of "TFT", "DSTN", "STN"
|| $log =~ m!\b(?:TFT|DSTN|STN) Panel (\d+)x(\d+) found$!m
# via format: "Selected Panel Size is 640x480\n", ... (via/via_driver.c)
|| $log =~ m!\bSelected Panel Size is (\d+)x(\d+)$!m
# (WW) intel(0): BIOS panel mode is bigger than probed programmed mode, continuing with BIOS mode.
# (II) intel(0): BIOS mode:
# (II) intel(0): Modeline "1280x800"x0.0 68.88 1280 1296 1344 1410 800 804 807 815 (48.9 kHz)
|| $log =~ m!BIOS panel mode is bigger than probed programmed mode, continuing with BIOS mode.*?BIOS mode:.*?Modeline "(\d+)x(\d+)"!s
# use xorg-server exact initial mode (hw/xfree86/modes/xf86Crtc.c) when output name is LVDS* (laptop TFT)
# (II) NOUVEAU(0): Using exact sizes for initial modes
# (II) NOUVEAU(0): Output LVDS-0 using initial mode 1440x900
|| $log =~ m!Using exact sizes for initial modes.*?Output LVDS[0-9-]* using initial mode (\d+)x(\d+)!s
or return;
my ($X, $Y) = ($1, $2);
print $opt{perl} ? "[ { preferred_resolution => { X => $X, Y => $Y } } ]" : "${X}x${Y}", "\n";
1;
}
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