Before the strike began (and perhaps while it was going on), some miners proposed sending a delegation to the capital, Bucharest, to discuss their problems with the leadership of the Romanian Communist Party, but this option was discarded as they probably thought any split to two locations would fatally undermine their cause. During the pre-strike period and just as the strike began, certain of the sectoral party chiefs who obstructed the miners' efforts were verbally and even physically assaulted by the miners.
Frightened by the events, on August 2 the authorities sent a negotiating team from Bucharest. Ilie Verdeţ (first vice-president of the Council of Ministers) and Gheorghe Pană (president of the Central Council of the General Trade Union Confederation of Romania and Minister of Labour) were both Politburo members, Verdeţ a former miner himself. Dobre, a pit brigade chief from the Paroşeni mine, later recalled Verdeţ's speech (attended by some 20,000 miners), in which he stated he could not decide what measures to take but was merely there to find out about the miners' problems, which only Ceauşescu could decide to alleviate. At this point the crowd shouted, demanding Ceauşescu's personal presence, whereupon Verdeţ claimed the President was occupied with "urgent party and state problems" and that if work resumed Verdeţ would "guarantee" his return to the Valley within a month with a favourable reply from Ceauşescu. These promises were regarded with great suspicion by the crowd, which, emboldened, began booing again and warned that they would not go back to work until Ceauşescu personally came and publicly promised to resolve their grievances. Booed, insulted and pelted with food scraps, Verdeţ and Pană hid behind Dobre and, backed up against the wall of the gatekeeper's booth, nervously begged him to assure their safety. Literally backed into a corner, Verdeţ promised the miners that he would convince Ceauşescu to come.
What happened next is a matter of dispute. Dobre insists that the two party functionaries were held hostage in the booth until Ceauşescu's arrival, given only water and monitored in their conversations with Bucharest; other sources confirm this account. Verdeţ dismissed this version as being merely a legend.
In order to avoid the possibility of violent clashes, the Jiu Valley authorities infiltrated the area with informers and Securitate members, but avoided the visible imposition of martial law, also to keep tensions down. Arms depots were guarded for fear the miners might raid them. On the day of Ceauşescu's arrival, Securitate troops as well as party functionaries were called in from Craiova, Târgu-Jiu and Deva to try to disperse the protesters.
Indeed, a visibly shaken Ceauşescu gave a halting 5-hour (other sources say 7-hour) speech that was soon interrupted by boos. Beginning in a trembling voice, he made an initial, hopeless attempt to send the miners back to work: “Comrades, this is not the war… this is a disgrace for the entire nation… a disgrace! I have taken note of your grievances.” He tried to explain the party's policy and appeal to the miners through demagogy, claiming that the party leadership had wanted to reduce working hours but that the miners had resisted, which insult to their intelligence was met by cries of “It is not us! Bandits, thieves!” A general murmur of the crowd ran through the speech, along with protests and outbursts of anger; whenever Ceauşescu began to stumble over his words, some of the men booed and whistled. Proposing that the six-hour day be introduced gradually at Lupeni and then at the other mines, the men replied, “A six-hour day from tomorrow.” Toward the end, when, angered by their audacity, he still refused to grant an immediate six-hour workday, phrases loudly heckled included "He has no idea what the people's interests are" and "He is not concerned with the workers' fundamental interests". Starting to threaten them, Ceauşescu warned that “If you do not go back to work we'll have to stop pussyfooting around!” According to observers, "Down with Ceauşescu!" was then heard after prolonged booing, an account confirmed by Verdeţ. Refusing to grasp what was taking place – a break between Party and workers on a scale unprecedented in Communist Romania –, he was both shocked by his inability to connect with the workers and frightened for his physical safety (once in the workers' midst, there was little chance for law enforcement to protect him). Only when Dobre seized the microphone and urged the miners to let Ceauşescu finish did the atmosphere become less charged. At that point he saw that his only exit lay in making conciliatory promises he had no intention of honouring; using the wooden language that miners trust, he promised to resolve their grievances (agreeing to a six-hour workday for everyone, with Saturdays and Sundays off, and to build factories that would provide jobs for miners' wives and daughters), vowed those responsible for the miners' discontent would be brought to account and that there would be no retribution, and was applauded. "Calm down and go back to work", he said, after which, exhausted by the speech and the tension which made him feel insecure, he felt physically weak when leaving the platform, having to lean on one of his men. Verdeţ and Pană were released and the strike came to an end immediately after Ceauşescu's departure, the men dispersing and some going into the mines for the August 3 evening shift. They even offered to make up the time lost during the strike.
One significant slogan used during the strike was "Down with the proletarian bourgeosie", which was targeted against the Communist functionaries who administered the Valley and profited from the miners' labour and caused their salaries to be kept down. In using it, they attacked the perceived injustice of the hierarchical Communist system with its bureaucratic nomenklatura (which existed alongside its political and repressive sides, represented by the party and the Securitate), and invoked the Communists' decades-long struggle against the bourgeoisie in an ironic sense. To them, the regime had become a state in which capitalism continued to operate, albeit in the service of a clearly-delineated group of bureaucrats.
Repression took various forms. After Dobre spoke, the miners realised he would be targeted and so guarded his residence in order to prevent his arrest. He was not arrested on the spot; instead, the authorities busied themselves with identifying the miners: engineers and section heads were called to Securitate headquarters to identify them from pictures that had been taken secretly. All strikers who were party members were sanctioned or even removed from the party. Some of the miners were sent back to their native counties. Those who were considered to have been actively violent during the strike were tried and sentenced to 2-5 years' imprisonment through correctional labour for disturbing the public order and offending good morals. In practice, correctional labour meant internal deportation, although some strikers did go to prison. The miners were intimidated and attacked, along with their families in certain cases. Miners who were questioned were insistently asked never again to strike or speak out against the party. Many strikers were called to the Petroşani Securitate building, where they were repeatedly mistreated during interrogations by, for instance, being beaten over the head and having their fingers bound to doors. The ensuing investigation tried to discover where the core of support for the strike lay, and while some 4,000 workers were moved to other mining areas in the following months, others were said to have ended up in labour camps on the Danube-Black Sea Canal. The main strike leaders disappeared within weeks, with other outspoken miners rounded up piecemeal and dispersed over the next few months. The concessions held long enough for the authorities to break the organisational backbone of the resistance, but eventually most of these were withdrawn and the eight-hour workday imposed, though this was not made official until 1983.
In the party-led meetings that followed the strike, the protesters were labelled "anarchic elements", "base" and "worthless people". At trial they were called "Gypsies", "lowlifes", "impostors" and "infractors". At least 600 miners were interrogated; 150 penal dossiers were opened; 50 were hospitalised in psychiatric wards; 15 were sentenced to correctional labour and actually imprisoned, while a further 300 or more (who were considered dangerous) were internally deported. Almost 4,000 were fired on the pretext that there was no work, or else the smallest dispute with or protest against the mine management was used to sack them. Several hundred families were moved out of the area. After prison or deportation, several former protesters continued to be harassed by the Securitate; one man, disappointed at the outcome of events, became a monk after his release from prison. The area was surrounded by security forces; two helicopters were brought in to monitor happenings and ensure a tight link with Bucharest, although the official reason for their presence was to fly mining accident victims to the hospital.
The number of Securitate and Militia forces at Petroşani was doubled and military units were placed near all mines in the Jiu Valley. Securitate agents were hired as miners, not only to inform on other workers, but also to exert psychological pressures on them and even beat them before witnesses so as to create a climate of intimidation. A relatively large number of common criminals released from prison were brought into the mines as well. The Valley was declared a restricted area from August 4 until January 1 1978. Strict surveillance was intended to block the flow of any information to the rest of the country or contact with the outside world, yet 22 miners acting on behalf of 800 others managed to send a letter (dated September 18) to the French newspaper Libération, which published it on October 12. Foreign media drew a link between Paul Goma's movement that spring and the miners' unrest several months later, though no connection actually existed.
Gheorghe Maniliuc was imprisoned for three and a half years, and after his release died in 1987 of heart trouble. Dobre's fate was long a source of speculation – even the first version of the Tismăneanu Report claimed he had been killed, while others theorised he became a party activist, was put in a mental hospital, etc. Dobre gave an interview in 2007 in which he clarified later events. The salient points of his later life are as follows: he and his family were moved to Craiova on August 31 1977, where they lived until May 1990, in total isolation and under constant Securitate surveillance until December 1989 (over 50 agents informed on him). He was given work as an unskilled auto mechanic and, after a calculated rejection from other universities, he attended the Ştefan Gheorghiu Academy in the 1980s but never authored Communist propaganda and showed a rebellious attitude toward the faculty. He repeatedly asked to be permitted to emigrate but was refused, and holds the Securitate responsible for the 1979 airplane crash that killed his brother, a pilot. During the Revolution, he was hailed by a crowd in Petroşani and appeared on television but was sidelined due to his hostility toward the National Salvation Front, being labelled an "extremist" and a "terrorist", particularly in the Craiova and Jiu Valley newspapers. In spring he moved to Bucharest, but soon the June 1990 Mineriad broke out and barely managed to hide from a group of armed miners looking for him. He arrived with his family in London that September, seeking asylum, was sentenced in absentia by a Romanian court to five years' imprisonment in 1992, was granted asylum in 1994 and became a British citizen in 2002.
The strike—probably the first workers' protest since 1958, with the exception of a September 1972 strike in the Jiu Valley—began not as an anti-Communist or even an anti-Ceauşescu movement but rather a socio-economic one in spontaneous reaction to the new pensions law, as confirmed by the miners’ inexperience, which led them to improvisation and hasty decision-making. However, once the Communist leaders were sequestered, it moved in a political direction and, given the repression that followed, was interpreted as such by the authorities. At the same time, the strike did have an intrinsically political character in the sense that the miners—thought of as essential components of the Communist working class—revolted against their ideological bosses and conditions created by the very political system that used them as part of its labour force. So while collective and unpremeditated, the protest challenged the Communist leadership of the day and ultimately the regime itself.
Just how significant the strike's implications were becomes apparent when considering the miner's place in Communist myth-making: he represented an “archetypal proletarian”, a “new man” whose symbolic aura was conferred by his Stakhanovite determination. The idea of the new man particularly caught on in areas dominated by a single industry, like the Jiu Valley, where the working masses could easily be controlled by the party. The uneducated miners, drawn largely from poor rural or socially-disadvantaged layers of society, believed in the Communist ideology and discourse, which rang true to them, and awaited the arrival of a classless society. The miserable conditions in which they actually lived did not match the propaganda, and the disillusioned miners responded forcefully. After the strike, Ceauşescu took to posing as an “honorary miner” or as a national leader flanked by Securitate members dressed up as miners. He had been genuinely shocked that the representatives par excellence of the new man had unexpectedly revolted against the system that had so carefully crafted them. The image of the model miner had come crashing down, and for that reason the strikers were terrorized—they had destroyed a myth that had served not only them and other “new men”, but also Ceauşescu himself.